Page 1 Hot Runner User Manual version 32 Original Instructions...
Page 3: Table Of Contents
1.2 Documentation ....................1-1 1.3 Release Details ....................1-1 1.4 Warranty ......................1-2 1.5 Returned Goods Policy ..................1-2 1.6 Movement or Resale of Mold-Masters Products or Systems ......1-2 1.7 Copyright ......................1-2 1.8 Units of Measure and Conversion Factors ............1-3 Section 2 - Global Support ..........2-1 2.1 Corporate Offices....................2-1...
Page 4 5.14 Slimstack Actuator ..................5-44 5.15 Hydraulic and Pneumatic Actuators ..............5-45 5.15.1 Valve Actuator Assembly ...............5-45 5.15.2 Pre-Installation ..................5-46 5.15.3 Assembling a Cylinder Bottom ...............5-46 5.15.4 Piston Assembly ..................5-47 © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 5 5.21.1 Typical System ..................5-65 5.21.2 Components ..................5-67 5.21.3 Safety .....................5-68 5.21.4 Assembly ....................5-69 5.21.5 Attaching a Hot Runner Assembly ............5-70 5.21.6 Attaching a Plate Assembly ..............5-70 5.21.7 Assembling a Synchro-Plate ..............5-71 5.21.8 Preparing a Ball Screw ................5-72 5.21.9 Lubricating a Ball Screw ................5-72 5.21.10 Assembling a Ball Screw ..............5-73...
Page 6 5.26.5.10 Assembling (Cold Condition) ..........5-132 5.26.5.11 Retightening Wedge Screws (Hot Condition) ......5-137 5.26.5.12 Replacing a Transfer-Seal/Torpedo ........5-139 5.26.6 Melt-Cube Design B ................5-142 5.26.6.1 Components ................5-142 5.26.6.2 Maintenance Toolkit ...............5-143 5.26.6.3 Inspecting ................5-143 © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 7 8.3 Shutdown ......................8-6 8.3.1 Standard Hot Runner Systems ..............8-6 8.3.2 Stack Mold Systems ..................8-6 8.3.2.1 Shutdown manifolds, submanifolds, inlets and nozzles....8-6 8.3.3 Melt-Disk ....................8-6 8.3.3.1 Melt Link ..................8-7 Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 8 10.9.1 Latching a Cavity Plate to a Core Half (Cold Half).......10-27 10.9.2 Latching a Cavity Plate to a Manifold Plate (Hot Half) ......10-29 Section 11 - Troubleshooting ........11-1 Section 12 - Glossary of Terms ........12-1 Index ..................I © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 10: Section 1 - Introduction
Section 1 - Introduction The purpose of this manual is to assist users in the integration, operation and maintenance of a Hot Runner. This manual is designed to cover most system configurations. If you need additional information specific to your system, or information in another language, please contact your representative or a Mold-Masters office.
Page 11: Warranty
Mold- Masters representative. 1.5 Returned Goods Policy Please do not return any parts to Mold-Masters without pre-authorization and a return authorization number supplied by Mold-Masters. Our policy is one of continuous improvement and we reserve the right to alter product specifications at any time without giving notice.
Page 12: Units Of Measure And Conversion Factors
0.069 bar Pound per square inch 6.895 kPa Revolutions per minute Second Degree ° Degree Celsius ° ° 0.556 ( F -32) Degree Fahrenheit ° ° C +32 Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 13: Section 2 - Global Support
South Korea El Marques, Queretaro C.P. 76246 fax: +39 049/5019951 tel: +82-31-431-4756 Mexico italy@moldmasters.com korea@moldmasters.com tel: +52 442 713 5661 (sales) tel: +52 442 713 5664 (service) mexico@moldmasters.com Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 14: International Representatives
+7 (495) 199-14-51 +386 59 969 117 sales@plastrading.com moldmasters@system.com.ru info@picta.si Ukraine Company Park LLC Gaydamatska str., 3, office 116 Kemenskoe City Dnipropetrovsk Region 51935, Ukraine tel: +38 (038) 277-82-82 moldmasters@parkgroup.com.ua © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 15: Section 3 - Safety
SAFETY Section 3 - Safety Please be aware that the safety information provided by Mold-Masters does not absolve the integrator and employer from understanding and following international and local standards for safety of machinery. It is the responsibility of the end integrator to integrate the final system, provide...
Page 16: Overview
9. Hoses 10. Area inside the guards and outside the mold area Front view with guards removed Front View with Guards Removed Figure 3-1 Injection molding machine hazard areas. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 17 Mechanical and / or Thermal Hazard Hazards due to reduction in mechanical strength of the plasticizing and / or injection cylinder due to overheating. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 18 Crush or impact hazards caused by the movement of the power operated Gate gates. Vapors and Gases Certain processing conditions and / or resins can cause hazardous fumes or vapors. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 19: Operational Hazards
• Never perform any work on the mold machine unless the hydraulic pump has been stopped. • Check frequently for possible oil leaks / water leaks. Stop the machine and make repairs. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 20 Failure to support the machine can result in severe injury or death. • Mold cable from the controller to the mold must be removed before servicing the mold. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 21: General Safety Symbols
Warning – Slip, Trip or Fall Hazard Do not climb on equipment surfaces. Serious slip, trip or fall injuries can result from personnel climbing on equipment surfaces. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 22: Wiring Check
Failure to do wiring or connections properly will result in equipment failure. The use of Mold-Masters standard connections can help to eliminate the potential for wiring errors. Mold-Masters Ltd. cannot be responsible for damage caused by customer wiring and / or connection errors.
Page 23: Lockout Safety
• Burns from contact with hot parts, materials or equipment such as furnaces • Fires and explosions • Chemical exposures from gases or liquids released from pipelines Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 24: Electrical Lockout
The last lock to be removed should be that of the person supervising the lockout and this responsibility should not be delegated. © Industrial Accident Prevention Association, 2008. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 25: Energy Forms And Lockout Guidelines
Shut off, lock (with chains, built- • Storage tanks and vessels in lockout devices, or lockout attachments) and tag valves. • Bleed off excess liquids or gases. • Blank lines as necessary. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 26: Disposal
1. Hot Runner and system components must be disconnected from the power supply fully and properly before disposal (electricity, hydraulics, pneumatics and cooling).
Page 27: Hot Runner Safety Hazards
• The equipment supplied is subjected to high injection pressures and high temperatures. • Ensure that extreme caution is observed in the operation and maintenance of the Hot Runner system and the injection molding machines. • Do not operate the equipment with unconfined long hair, loose clothing or jewelry, including name badges, neckties, etc.
Page 28 • Make sure the lifting eyebolt, lifting chain and crane are rated to adequately support the weight of the plate(s). Failure to do so can cause a serious injury. • All maintenance on Mold-Masters products should be performed by properly trained personnel based on local law or regulation requirements.
Page 29 • When replacing heater plates or other heated components always replace with Mold-Masters components of the same type and install as originally specified on Mold-Masters General Assembly drawings. Hot Runner User Manual...
Page 30: Section 4 - Preparation
The following section is a step-by-step guide to prepare your Mold-Masters system for use. 4.1 Tools Required Depending on the size and complexity of your Hot Runner system, you will require most of the tools and materials listed below. •...
Page 31: Screws
Figure 4-3 Screw grade Some screws show the grade on the part. Make sure that the correct grade of screw is used. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 32: Torque Settings
25-28 34-38 Hecto 35-40 47-54 Mega 35-40 47-54 Dura MTT Centi 10-12 14-16 Deci 20-22 27-30 Dura Tit Edge Centi 11-13 15-18 Deci 11-13 15-18 Pico 8-10 11-14 Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 33: Others
Tighten the screws to the specified torque in a minimum of two steps. Quality and length of screws must be as specified on Mold-Masters General Assembly drawings. Table 4-4 Torque Chart for System Assembly Screws...
Page 34: Unpacking
2. Check that all mold base dimensions are correct and correspond to Mold- Masters General Assembly drawings. 4.5 Cleaning 1. All nozzles, manifolds and Hot Runner components must be free of the rust inhibitor applied at the factory. 2. Disassemble the system.
Page 35: Overview Of System Types
4.6.1 Non-Valved System 1. Center heater 2. Nozzle 3. Manifold 4. Pressure disk 5. Locating ring Figure 4-4 Non-valved System © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 36: Valve Gate System
4.6.2 Valve Gate System 1. Valve disks 2. Manifold locator 3. Nozzle 4. Manifold 5. Inlet extension 6. Hydraulic/ pneumatic actuators 7. Locating ring Figure 4-5 Valve Gate System Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 37: Valve Gate System With Bridge
2. Step 3. Nozzle 4. Bridge 5. Manifold 6. Valve disks 7. Hydraulic / pneumatic actuators 8. Center heater 9. Locating ring Figure 4-6 Valve Gate System with Bridge © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 38: Non-Valved System With Mastershield Technology
1. Locating ring 6. Disc spring 2. Back plate 7. Support pad 3. Manifold 4. Nozzle 5. Hardened washer Figure 4-7 Non-Valved System with MasterShield Technology Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 39: Valved System With Mastershield Technology
2. Manifold 8. Pneumatic/hydraulic actuator 3. Nozzle 9. Inlet extension 4. Disc spring 10. Locating ring 5. Hardened washer 6. Manifold locator Figure 4-8 Pneumatic/hydraulic system with MasterShield technology © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 40: System Cutaways
This section is a step-by-step guide to assembling your Mold-Masters Hot Runner system. 4.7.1 Brazed-in/Paste-in System This illustration of a typical Mold-Masters cast-in Hot Runner system is divided into two halves: valve side and non-valve side. The terminology associated with the various components and features are listed below.
Page 41: Bolt-In System
PREPARATION 4.7.2 Bolt-in System This illustration of a typical Mold-Masters bolt-in Hot Runner system is divided into two halves: the valve side and the non-valve side. The terminology associated with the various components and features are listed below. Hot Half - Bolt In Arrangement...
Page 42: Mastershield System
PREPARATION 4.7.3 MasterShield System This illustration of a typical Mold-Masters MasterShield cast-in system is divided into two halves: the valve side and the non-valve side. The terminology associated with the various components and features are listed below. Valved Non-valved 1. Valve actuator 7.
Page 43: Section 5 - Assembly
The gate seals supplied with your system may need to be adjusted to tolerances based on the material grade and cooling in the cavity. Refer to your Mold-Masters General Assembly Gate Detail drawing to determine if gate seal finishing is required. Refer to the General Assembly drawing to determine which gating method applies.
Page 44: Thermocouples
For 1.5 mm (0.06 in.) thermocouples use a 1/16 inch drill in a pin vise. NOTE For front-mounted thermocouples, skip step 2 and go straight to step 3. Insert the thermocouple through the flange bore. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 45 8. Install the terminal end retaining clip. Check that the thermocouple fits into the recess of the clip. IMPORTANT Make sure that the terminal end of the thermocouple stays fully engaged in the slot. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 46 10. Install the clip over the terminal end. 11. Use heat resistant tape to secure the nozzle wires and thermocouple wires just above or below the insulator pod. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 47: Installing A Dura Line Thermocouple
5.3.2 Installing a Dura Line Thermocouple This page only applies to Legacy Dura Nozzles. Mold-Masters Dura systems are supplied with an appropriate bending tool. Any questions regarding bending tools, please contact your Mold-Masters representative. Make sure that correct bending tool is used. Each different type of Dura nozzle requires a different bending tool.
Page 48 7. Use heat resistant tape to secure the nozzle wires and thermocouple wires just above or below the insulator pod. The nozzle is ready for Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 49: Removing A Non-Front Mounted Thermocouple
1. Remove the thermocouple from the electrical box and wire channels. 2. Remove the nozzle from the manifold plate. 3. Remove the thermocouple retaining clips. 4. Remove the thermocouple. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 50: Installing A Nozzle
NOTE Prior to commencing assembly verify manifold and nozzle cutouts in mold plates are to specification to ensure proper clearance to Hot Runner. Improper clearance will affect system performance. 5.4.1 Master-Series and Dura Lines 1. Clean the nozzle well seating bore.
Page 51: Mastershield Centi, Deci, And Pico
3. Nozzle retainer 4. Nozzle 1. Clean the seating bore of the nozzle well. 2. Install the bottom hardened washer. 3. Apply high temperature grease to the spring. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 52 4. Install the disc spring in the correct orientation. 5. Install the top hardened washer. Install the nozzle retainer. 6. Install the nozzle. For anti-rotation, use the bolts between the manifold and nozzle. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 54: Mastershield Femto
4. Nozzle 1. Clean the seating bore of the nozzle well. 2. Install the bottom hardened washer. 3. Apply high temperature grease to the first and second spring. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 55 The bottom spring has a different orientation from that of other MasterShield systems. 5. Install the top spring. NOTE The top spring has a different orientation to that of the bottom spring. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 56 6. Install the top hardened washer. 7. Install the nozzle retainer. 8. Install the nozzle. For the anti-rotation version, use the bolts between the manifold and the nozzle. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 58: Installing A Nozzle Step
4. Install the screws through the manifold and the step into the nozzle. 5. Torque screws to the value specified on the General assembly drawing. Manifold Step Screw Nozzle Figure 5-4 Step installation Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 59: Nozzle Wire Layout
1. Thermocouple 2. Wire retainer 3. Manifold 4. Clamp plate 5. Power wire 6. Mold plug 7. Electrical box 8. Manifold plate Figure 5-6 Thermocouple layout - side view © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 60: Installing A Valve Bushing
Install the valve bushing on top of the nozzle. 2. If the anti-rotation dowel pin is on the top of the valve bushing: a) Install the valve bushing. b) Install the dowel pin. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 61 7. Torque screws to value indicated on the General Assembly drawings and secure manifold to the manifold plate. 1. Mounting screw 2. Manifold 3. Valve bushing 4. Nozzle Figure 5-10 Valve bushing - screw installation © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 62: Mounting A Manifold
2. Manifold locating dowel pin with side anti-rotation dowel 3. Manifold locator with bottom anti-rotation dowel Manifold Locating Manifold Locator Figure 5-11 Manifold with a locator SURFACE A SURFACE B FACE Y Figure 5-12 Locator surface Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 63: Manifold Locator
3. If required, attach a crane of sufficient lifting capacity to the manifold. 4. Check for correct seating and height. 5. Check that there are no pinched wires. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 64: Manifold Locating Dowel Pin
Manifold Locating Locating Dowel Pin Figure 5-13 Manifold Locating with a dowel pin 5. Check for correct seating and height. 6. Check that there are no pinched wires. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 65: Installing A Manifold Thermocouple
10. Feed the wires back through the wire channel in the mold base to the electrical box. 90° 1. Thermocouple 2. Screw 3. Washer 4. Assembly Figure 5-14 Thermocouple installation © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 66: Mounting A Main Manifold
4. Install the manifold locators. Refer to “Mounting the Manifold”. 5. Check that all components are free of debris. 1. Inlet seal 2. Submanifold Figure 5-16 Inlet seal Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 67: Installing A Manifold Step
These may or may not require grinding. For additional information please refer to “4.6 Overview of System Types”. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 68: Pressure Disk: Final Grinding Required
Figure 5-18 Calculating nozzle bore depth “a” b) Measure the top section of the nozzle flange “b”. Figure 5-19 Calculating nozzle flange height “b” c) Measure the manifold thickness “c”. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 69 Material to be removed from each side of the pressure disk: 0.08 mm ÷ 2 = 0.04 mm (0.002 in.) Nozzle bores and pressure disks must be within tolerances specified in the General Assembly drawing. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 70: Installing A Pressure Disk
5. Measure the gap between the top of the manifold plate and the top of the pressure disk. Ensure that it matches the air gap value on the General Assembly drawing. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 71: Installing A Valve Disk
General Assembly drawing. 6. For information on removal, refer to “10.1 Valve Disks” on page 10-1. Alternate Method - Air gap adjustment from top clamp or hydraulic plate © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 72: Installing A Support Bushing Or A Valve Disk In A Mastershield System
1. Install the manifold into the plate and ensure that it sits on the nozzles. 2. Use the General Assembly drawings to locate the positions for the support bushings. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 73: Installing A Valve Disk
Spring dowel Manifold plate Nozzle Figure 5-26 MasterShield system with a valve disk 1. Install the manifold into the plate and ensure that it sits on the nozzles. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 74 For 2-piece valve disk - Insert valve stem into the manifold in appropriate orientation. Slide valve disk flange over the stem. For removal of valve disk stems, see “10.1 Valve Disks” on page 10-1. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 75: Installing A Heater Plate
Refer to the General Assembly drawing for the correct torques. NOTE Current bronze heater plates are directly interchangeable with previous copper or aluminum based plates that may exist on your Mold-Masters system. However, when multiple heater plates are controlled by one thermocouple, these heater plates must be made of the same material, be of equal wattage and be located in similar thermal environments.
Page 76 It is recommended that the heater plate wires be isolated and grouped so that they do not have to be disconnected if the manifold needs to be dismantled for repair. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 77: Installing Inlet Components
NOTE The machine nozzle bore should be no less than 1.0 mm (0.040 in.) smaller than the back plate bore and no larger than the back plate bore. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 78: Heated Back Plate
7. Install the wires into the wire channels and secure with wire retainers. 8. Feed wires back through the wire channel in the mold base to the electrical box. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 79: Center Heater (Direct Mount)
7. Install the M8 mounting screws through the cover plate into the tapped holes of the manifold. 8. Tighten the screws to the torque values in the general assembly drawings. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 80: Center Heater (Indirect Mount)
9. Install the M6 mounting screws through the cover plate into the tapped holes of the backplate. 10. Tighten the screws to the torque values in the general assembly drawings. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 81: Inlet Extension
6. Install the wires into the wire channels and secure with wire retainers. Feed the wires back through the wire channel in the mold base to the electrical box. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 82: Inlet Extension With Pressure Sleeves
7. Feed the wires back through the wire channel in the mold base to the electrical box. 8. For electrical checks, refer to “Section 7 - Electrical Testing”. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 83: Slimstack Actuator
ASSEMBLY 5-44 5.14 Slimstack Actuator Please see the Slimstack user manual for details on Slimstack actuators. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 84: Hydraulic And Pneumatic Actuators
19. Valve pin 20. Piston rod wiper seal 21. Piston collar 5500 Series 6X00 Series 7100 Series 8600 Series - AR 22. Dowel pin Figure 5-36 Valve actuator components Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 85: Pre-Installation
Figure 5-37 6X00 Series and 7100 Series bottom cylinder Figure 5-38 6X00 Series and 7100 Series bottom cylinder O-rings 1. Back-up ring 2. Inner Viton O-ring 3. Outer seal Figure 5-39 Seal kit PS0003 © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 86: Piston Assembly
Figure 5-40 Piston assembly 1. Piston bottom 2. Installation tool Figure 5-41 Piston bottom with installation tool 1. Outer seal 2. Installation tool Figure 5-42 Outer seal assembly Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 87: Assembling A Cylinder Top
Heat expansion difference to be removed from pin head. Figure 5-44 5500 Series - Measure distance 3. Cut the pin to the length detailed in the general assembly drawing for your job. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 88 3. Nozzle / angled valve pin 4. Nozzle well bore 5. Cavity Figure 5-45 Bushing for pin tip 1. Land area 2. Cavity face Figure 5-46 Land location Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 89: 6X00 Series
4. Grind the valve pin tip to fit the cylindrical gate. Refer to the system gate detail. 5. Assemble the hydraulic unit. 6. Heat the Hot Runner system to processing temperature. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 90 ASSEMBLY 5-51 7. Soak the pin in the Hot Runner system for 10 minutes to achieve the maximum heat expansion of the pin at the processing temperature. NOTE Mold cooling should be running. 8. Measure the distance CD in the heated condition. Check that the head of the pin is seated.
Page 91: 8X00 Series
6. Assemble the hydraulic unit. 7. Heat the Hot Runner system to processing temperature. 8. Soak the pin in the Hot Runner system for 10 minutes to achieve the maximum heat expansion of the pin at the processing temperature. NOTE Mold cooling should be running.
Page 92: 8600-Ar Series
8. Lap the tip of the pin into the land area (steel section in the gate area) using a lapping guide bushing or valve bushing as a lapping guide. We recommend 400 - 600 grit lapping paste. 9. Assemble the hydraulic unit. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 93: Lapping A Tapered Valve Pin-5500 And 6X00 Series
The Viton O-rings used for the valve actuators are rated for operation below 200°C (400°F). Always turn ON the plate cooling prior to heating the Hot Runner system. Refer to the warning if O-rings have been subjected to higher than rated temperatures.
Page 94: Finishing The Head Of A Valve Pin-5500 Series
Use appropriate protective clothing. Failure to do so can cause serious injury. 1. Heat the Hot Runner system to the processing temperature. 2. Allow the pin to soak in the Hot Runner system for 10 minutes to achieve the maximum heat expansion of the pin at processing temperature. NOTE Mold cooling should be running.
Page 95: Valve Pin Assembly
6. Install piston top and tighten, recommended torque setting 20-27 Nm (15-20 ft-Ib). 1. Cylinder top 2. Valve pin 3. Spring retainer stud 4. Disk springs Figure 5-51 8 X 5 Disk spring assembly © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 96: 7100 Series
5. Install piston top and tighten to recommended torque setting 20-27 Nm (15-20 ft-Ib). Figure 5-52 Cylinder installation 1. Actuator spacer 2. O-ring 3. Spacer threads up 4. Piston 5. Piston top Figure 5-53 Piston spacer installation Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 97: Installing A Valve Actuator In A Hydraulic Plate
7. Install the piston top. 8. Remove the installation tool. 9. Check that the cylinder top dowel and O-rings are installed. 10. Install the cylinder top. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 98: 6X00 Series
6. Install piston top and tighten, recommended torque setting 20-27 Nm (15-20 ft-Ib). 1. Cylinder top 2. Valve pin 3. Spring retainer stud 4. Disk springs Figure 5-56 8 X 5 Disk spring assembly Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 99: Installing A Hydraulic Limit-Switch Option-6500 And 6600 Series
10. Install the cylinder top. The piston top will protrude from the cylinder top. 11. Install the trigger ring on the head of piston top and lock its position with a flat head screw. Thread locking is recommended. (LOCTITE-243) © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 100: Installing A Proximity Sensor
4. Repeat steps 1-3 to install the other bracket assembly into the cylinder top. 1. Socket head cap screw 2. Sheet metal sensor bracket 3. Proximity sensor with lock nuts Figure 5-57 Single sensor / bracket assembly Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 101: Cutout Options Based On Stroke
ASSEMBLY 5-62 5.18.2 Cutout Options Based on Stroke For 9.8 mm Stroke For 19.8 mm Stroke - Option 1 For 19.8 mm Stroke - Option 2 © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 102: Testing The Proximity Sensor Of A Hydraulic Limit-Switch Option
7. Disconnect the proximity sensor and the hydraulic actuator unit from the power supply. 8. If applicable, install the sensor plate with the screws as per the specification on the General Assembly drawing. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 103: Sevg Plus Actuator
ASSEMBLY 5-64 5.20 SeVG Plus Actuator Please see the Servo-Electromechanical Linear Actuator SE-108C user manual for details on the SeVG+ actuator. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 104: E-Drive
7. Top plate 8. Fixed idler 9. Drive pulley 10. Idler pulley 11. Timing belt 12. Ball-screw pulley 13. Tensioning idler pulley 14. Tensioning idler screw Figure 5-58 E-Drive system Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 105 ASSEMBLY 5-66 1. Synchro-plate 2. Inlet extension 3. Tensioning idler assembly 4. Ball-screw assembly 5. Synchro-plate 6. Valve pin holder 7. Valve pin Figure 5-59 E-Drive system (continued) © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 106: Components
ASSEMBLY 5-67 5.21.2 Components E-Drive motor mount - exploded view Fix idler Ball-screw assembly Tensioning idler assembly Figure 5-60 E-Drive components Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 107: Safety
Mold-Masters for clarification. E-Drive components are rated to operate at temperatures less than 40 ºC (104ºF). Do not heat the Hot Runner system without connecting a proper cooling system. In addition, if your application mold temperature needs to be set above 40 ºC (104 ºF).
Page 108: Assembly
WARNING Review “Section 3 - Safety” on page 3-1 before performing any assembly procedures. The Mold-Masters E-Drive system is shipped pre-assembled and requires minimal pre-installation assembly. The following details the assembly / installation procedures for various components of the E-Drive.
Page 109: Attaching A Hot Runner Assembly
ASSEMBLY 5-70 5.21.5 Attaching a Hot Runner Assembly 1. Attach the Hot Runner system to the manifold plate. 5.21.6 Attaching a Plate Assembly 1. Attach the interface plate to the manifold plate. 2. Install the fastening screws to join the plates.
Page 110: Assembling A Synchro-Plate
2. Ball-nut flange seating area 3. Guide bushings with top / bottom retainers 4. Bottom stop buttons 2. Install the valve pin holders into the synchro-plate. Valve pin holders Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 111: Preparing A Ball Screw
3. Move the ball-screw to the other end (position 02) of the spindle and bring it back to the position 01. 4. Take precautions to keep it away from the dirt. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 112: Assembling A Ball Screw
2. Install the cover plate into position. 3. Assemble ball-nut on ball-screw with a torque of 43-45 Nm (31.7 to 33.1 lbf-ft). NOTE Ball-screw mounting kit EDRIVEBSMNTKITP is supplied with the system. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 113: Maintaining A Ball-Screw
If your mold is not used for a long time, inspect the ball-screws for oxidation and dirt. Clean and lubricate the ball-screws before you start the machine. We recommend to call a Mold-Masters service technician for the inspection. Regular Maintenance Recommendations: Maintenance by cycle: Every 1.6 million cycles.
Page 114 Press the “measure” button on the sonic meter and hold the microphone at 1/4 in. away from the back of the belt. d) Check the tension and span vibration frequency values in the meter. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 115 1. Use the depth gauge tools and inspect the parallelism with the help of the measuring holes provided in the system. Enlarged view Measuring holes 2. Once the parallelism is confirmed, tighten the screws (2 Nos) in each ball- screw pulley. Screws © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 116: Assembling An Insulation Plate And A Locating Ring
ASSEMBLY 5-77 5.21.15 Assembling an Insulation Plate and a Locating Ring Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 117: Doing E-Drive Controller Checks
3. Idler tensioning screw 4. Taper bushing screws 5. Use standard 1/4 - 20 socket head cap screw to jack taper lock Figure 5-62 Installation or replacement of the belt © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 118 15. If possible, while system is heated, do a few dry cycles (using 24 V manual trigger) and check movement and noise. Double check the position of belt within all pulleys. See E-Drive Controller Operating Manual. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 119: Doing A Check For Misalignment
Parallel misalignment fleeting angle driveR driveN Angular misalignment fleeting angle driveR driveN Figure 5-63 Misalignment check © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 120: Mag-Pin Option
Valve pin size: 2.5 and 3 mm (0.1 and 0.12 in.) diameter valve pins • Gate style NOTE Please contact Mold-Masters to understand if the Mag-Pin option is applicable to your product. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 121: Assembly
Do not keep any tools or metal objects in the magnetic field area. Failure to follow the instructions can cause injury to personnel and / or damage to the parts. Figure 5-65 Mag-Pin safety hazards © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 122: Operation
The valve pin separates from the synchro-plate at the magnet interface. Open position Open position (Activated gate-10mm stroke shown) (Deactivated gate-10mm stroke shown) Closed position (Both activated and deactivated conditions) Figure 5-66 Mag-Pin activation / deactivation Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 123 Closed Position Open Position Deactivated gate Activated gate Figure 6-3 Mag-Pin activation / deactivation (continued) © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 124: Handling Magnets
Make sure that you keep the groups of magnets in a thick plastic container to avoid impact with other parts or tools. 1. Plastic spacer 2. Magnet Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 125: Summary Of The Assembly Procedure
5.22.6.1 Placing a Magnet on Top of the Magnet Retainer 1. Install the magnet on top of the magnet retainer. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 126: Checking The Polarity Of A Magnet
5.22.6.3 Cleaning a Magnet Holder 1. Clean and inspect the magnet holder. 2. Make sure that the interface with the magnet is free from grease, burrs or dust. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 127: Installing A Magnetic Retainer In A Magnet Holder
1. Install the magnet holder and magnet into the housing. 2. Use a 5 mm (0.2 in.) hex key and rotate the magnet holder in a counter- clockwise direction until the threaded part protrudes. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 128: Assembling A Nut And A Lock Magnet Holder
1. Insert the valve pin into the valve pin retainer. 2. Hold the valve pin holder with your hand. 3. Use a wrench and assemble the valve pin retainer with valve pin into the valve pin holder. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 129: Installing An O-Ring In A Valve Pin Holder
5.22.6.9 Installing a Valve Pin in a Housing Assembly 1. Carefully assemble the valve pin into the housing assembly. 2. Make sure that there are no impact forces on the magnet. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 130: Installing A Mag-Pin Assembly In A Synchro-Plate
1. Heat the system and adjust the valve pin height if the valve pin protrusion is not correct. 2. The Mag-Pin assembly at this condition can be installed into the synchro- plate Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 131: Single Nozzle Valve System (Accu-Line)
14. Socket head cap screws 15. Valve pin 16. Dowel pin 17. Socket head cap screw 18. Accu-Line bushing 19. Nozzle 20. Liner 21. Gate seal Figure 5-68 Centi Accu-Line body assembly © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 132: Pre-Assembly
1. Check components against the parts list. 2. Put cylinder backup washer and O-ring into cylinder body groove. Bend the cylinder hard ring into a kidney shape and insert into position in cylinder body. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 133 O-ring and the inner side of the hard ring to help assembly. 7. Apply a small amount of lubrication to all outside faces of seals prior to step 8 to help assembly. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 134 10. Make sure installed seals engage into guiding chamfer. Press piston smoothly and gently, applying even force. 11. Insert O-ring into cylinder top and assemble it to cylinder body. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 135 14. Attach gate seal and liner to nozzle. Tighten to specifications detailed in the General Assembly drawings. Attach nozzle thermocouple. 15. Attach valve bushing. Tighten to specifications detailed in the General Assembly drawing. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 136 20. Slide the valve pin holder into the heater body slot and over the valve pin head. NOTE The valve pin holder should be locked with and move together with the valve pin. See Figure 5-69. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 137 21. Carefully place the nozzle assembly into the hydraulic unit as shown. 22. Ensure that the nozzle terminal end is correctly oriented. 23. Secure the valve pin holder to piston. Tighten to specifications detailed in the General Assembly drawing. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 139: Deci And Hecto Accu-Line With Valve Insert
33. Cooling plug 34. Socket head cap screw 35. Insulation plate 36. Support sleeve 37. Cover plate 38. Socket head cap screw Figure 5-70 Deci and Hecto Accu-Line body assembly © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 140: Pre-Assembly
1. Make sure that the length of your valve pin is the same as that of the General Assembly drawing. 2. Make sure that your components match those of the parts list: Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 141: Assembling An Accu-Line System
2. Use your fingers to gently push the rod seal and guide ring into the grooves in the cylinder. Make sure that both sit firmly in the grooves. 22.Guide ring 23.Rod seal © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 142 In / out cooling lines within the plate 5. Apply grease to the guide ring, piston seal, and rod seal assembly grooves in the outer surface of the piston. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 144 CAUTION CAUTION The hole shown in the following figure has a chamfer. Be careful to avoid damaging the piston seal when inserting the piston assembly. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 145 11. Use your fingers to gently push the O-ring into the outer groove of the cylinder top. Make sure that the O-ring sits firmly in the groove. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 146 15. Insert the actuator connection hose fittings into the supply ports on the bottom of the unit assembly. 1. Cooling in 2. Cooling out 3. Gate open 4. Gate close Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 147 Insert the end of the thermocouple fully into the mating hole and bend it into the thermocouple groove. 1. Termcon assembly 2. Ground wire assembly 3. Thermocouple assembly © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 149 Insert the valve pin head into the keyhole slot in the valve pin holder. Slide the holder so that the pin head is located in the narrow portion of the slot. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 150 The air gap is determined by the flange depth of the mold plate. 27. Carefully place the nozzle assembly into the hydraulic unit. Make sure that the nozzle terminal end is correctly oriented. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 151 28. Attach the valve pin holder to the piston using shoulder head screws, and tighten them to a torque of 3 N∙m (2.2 lbf-ft). 29. Install the unit in the mold. Examine all the connections and actuations. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 152: Tit Edge-Gated System
M6 thread. NOTE If the cavity plate is easily removed you can access the nozzle seals while still in the system. Hot Runner systems must be cold before the cavity plate can be removed. 1. Apply penetrating oil to the threads.
Page 153: Melt-Disk System
Mold-Masters (2007) Limited GD&T per ASME Y14.5 Standard Manufact No: NP0044 Scale: Date: SCALE 1:1 DR'N 2020-04-17 CH'D 2020-04-17 Third Angle Projection APP'D 2020-04-17 c MOLD-MASTERS (2007) LIMITED © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 154: Example
Figure 5-74 Melt-Disk system with brazed/paste heater element 1. Melt transfer link on nozzle 2. Melt transfer link on Melt-Disk 3. Transfer seal 4. Torpedo tip 5. Melt-Disk locator Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 155: Preparing And Cleaning
4. Apply anti-seize compound to the threads of the gate seals, using Mold- Masters supplied compound. 5. Insert the pointed end of the tips (torpedoes) into the threaded end of the gate seal. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 156 Thread size Imperial Metric 10 - 11 ft-lb 14 - 15 Nm 7. Torque gate seals in heated condition at processing temperature as specified in the General Assembly drawing. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 157: Assembling A Melt-Disk Thermocouple
1. Remove the thermocouple retaining screw from the Melt-Disk. 2. Insert the thermocouple tip into the thermocouple hole until it touches the bottom of the hole. 3. Bend the thermocouple 90° towards the terminal. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 158 4. Attach the thermocouple with the thermocouple retaining screw. 5. Use heat resistant tape just above the insulator pod to attach the nozzle wires and thermocouple wires together. 6. Set the thermocouple assembly aside. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 159: Installing A Melt Disk In A Nozzle
5. Ensure the sharp edge of the Melt-Link does not get damaged when pushing the two halves together. MTL014A threaded into nozzle MTL014B threaded into Melt-Disk Do not damage sharp edge © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 160: One-Piece Melt-Link
Assembly drawing. 4. Assemble Melt-Disks onto the nozzles according to mold design. 5. Ensure the sharp edge of the Melt-Link does not get damaged. Do not damage sharp edge Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 161: Optional Quick Disconnect Terminal Ends
Wire Stop Slot (In Contact) 7. Wire stop slot (in contact) Wire Stop 8. Wire stop Wire Size Markings 9. Wire size markings Figure 5-77 QDISC - CRIMP tool © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 162: Crimping The Quick Disconnects
8. Holding wire in place, squeeze tool handles together until ratchet releases. Allow tool handles to open fully. Move locator toward anvil jaws and remove crimped contact. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 163: Melt-Cube Systems
Ensure that the correct instructions are followed for your design of Melt-Cube. Mold-Masters has different Melt-Cube designs. See “5.26.1 Identifying Your Melt-Cube Design” for more information. If in doubt, contact your Mold-Masters representative for assistance.
Page 164: Melt-Cube Design B (Horizontal Version)
ASSEMBLY 5-125 5.26.3 Melt-Cube Design B (Horizontal version) The new Melt-Cube design B uses a single screw. See Figure 5-79. Note single screw Figure 5-79 Melt-Cube design B Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 165: Example
4. Melt-Cube assembly 5. Cavity block cover plate 6. Melt transfer link 7. Melt-Cube spacing supports 8. Melt wedge 9. Clamp Figure 5-80 Example of a Melt-Cube system © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 166: Melt-Cube Design A
7. Gate seal assembly 3. Load wedge 8. Cavity insert 4. Melt wedge 9. Wedge dowel pin 5. Melt-Cube anti rotation dowel 10. Retainer clamp Figure 5-81 Melt-Cube design A components Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 167: Gate Seal Assembly
• 5 mm (0.2 in.) hex wrench - use for M6 screws • SHCSM5x90mm (2) - to extract melt wedge • SHCSM4x60mm (2) - to extract load wedge © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 168: Dual Nozzle Assembly
2. If necessary, use a cotton swab to clean narrow interior surfaces or screw threads. Spray lacquer thinner on larger surfaces, such as the manifold, to clean channels and recesses. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 169: Assembling A Melt-Cube Thermocouple
3. Apply anti-seize compound to the retaining screw. Secure the thermocouple with the screw. 5.26.5.7 Assembling a Ground Wire 1. Apply anti-seize compound to the retaining screw. Secure the ground wire with the screw. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 170: Installing A Melt Transfer Link
MTL016A Melt Transfer Link Centi Top Half 27-30 (to nozzle) (20-22) MTL015B Melt Transfer Link Deci Bottom Half 27-30 (to Melt-Cube) (20-22) MTL016B Melt Transfer Link Centi Bottom Half 27-30 (to Melt-Cube) (20-22) Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 171: Installing In A Cavity Block
1. Make sure water to the cover plate is off, then remove the cover plate. 2. Turn on cooling to the rest of the plates, especially the cavity plates. NOTE Mold-Masters recommends a separate cooling circuit for the cover plate, to be able to assemble and disassemble it without affecting other cooling circuits.
Page 172 Cube. Insert the Melt-Cube into the cavity block. Align the anti-rotation dowels and Melt-Cube center locator with the slots in the cavity block. 1. Center locator (also acts as support) 2. Spacing supports Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 173 6. Any cavity alignment features, such as dowels or cams, must be properly inserted at this time. In the example below cavity side retainers / anti- rotation dowels are installed. Repeat for all cavities. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 174 8. Ensure outside of transfer seal is clean. Slide fit transfer seal into cavity insert hole. 9. Install wedge dowel pins for locating melt wedges. 10. Ensure all melt wedge surfaces and inseals are clean. Place inseals into melt wedges. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 175 14. Once the system is assembled, melt wedge and load wedge screws must be retightened at process temperature. See “5.26.5.11 Retightening Wedge Screws (Hot Condition)”. SHCSM4X20 SHCSM6X25 SSETSM4X10DM © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 176: Retightening Wedge Screws (Hot Condition)
1. Set temperature of all Hot Runner components to processing temperature according to start up procedure. Make sure all cooling lines other than cover plate are connected properly.
Page 177 11.3 Nm (90 in-lb) to lock the load wedge in place. 7. Assemble cavity block cover plate and connect proper cooling lines. 8. Allow all Hot Runner components to reach processing temperature. 9. Fill system under low pressure extrude using screw rotation.
Page 178: Replacing A Transfer-Seal/Torpedo
Any rough scratch may become a source of leakage. NOTE Before shutting down the molding machine and mold, use maximum screw decompression to remove as much molten plastic from the Hot Runner system as possible. 1. Make sure the Melt-Cube and related nozzle are at a temperature such that the plastic is soft enough to be able to detach runners at gate area.
Page 179 5-140 9. Remove the transfer seal and related torpedo assembly from the cavity plate. You may use proper pliers (not supplied by Mold-Masters) with soft tips (brass) and suitable hole, or you may use screwdrivers with soft tip (brass) to pry transfer seal at the groove at its outer diameter.
Page 180 5-132. Complete these steps for both sides of any pair of seals that have been loosened to have balanced forces on interfaces of both sides during reassembly. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 181: Melt-Cube Design B
11. Hollow dowel pin 5b. Torpedo ** this part is only to be used for 40mm and 50mm pitch 8 cavity Melt-Cubes Figure 5-83 Melt-Cube Design B components © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 182: Maintenance Toolkit
1. Distance from the bottom of the cavity plate to the top of the cavity 2. Gate cutout diameter 3. Distance between the cavities where the Melt-Cube and the gate seals are placed Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 183: Cleaning
CAUTION CAUTION Ensure that the critical surfaces are not damaged during the cleaning process. 1. Clean any plastic residue from hot runner interface surfaces. See Figure 5-86. Clean plastic from surfaces shown here. Figure 5-86 Remove plastic residue from surfaces 2.
Page 184: Installing A Thermocouple
2. Bend the thermocouple back 90° to sit in the manifold channel. See Figure 5-90. Thermocouple in manifold channel Figure 5-90 Bend thermocouple 3. Apply anti-seize compound to the retaining screw and secure the thermocouple with the screw. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 185: Attaching A Ground Wire
1. Apply anti-seize compound to the threads on the top and bottom halves of the melt transfer link. 2. Thread the bottom half of the melt transfer link onto the Melt-Cube. See Figure 5-92. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 186 MTL015B Half (to Melt-Cube) (20-22) Melt Transfer Link Centi Bottom 27-30 MTL016B Half (to Melt-Cube) (20-22) NOTE These torque values are also found on the General Assembly drawing. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 187: Assembling
Figure 5-94 Install the anti-rotation dowel 2. Install the Melt-Cube center locator into the bottom of the cavity block and finger tighten. See Figure 5-95. Figure 5-95 Install the center locator © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 188 Figure 5-97 Install Melt-Cube manifold IMPORTANT Ensure that the anti-rotation dowels are inserted to the cavity block cutout, as shown in “Figure 5-94 Install the anti-rotation dowel” on page 5-148. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 189 10 Nm (7.5 ft.-lb). See Figure 5-99. Figure 5-99 Install side clamp - specific systems only 6. Install the torpedo into the transfer seal. See Figure 5-100. Figure 5-100 Install torpedo © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 190: Installing Gate Seals And Cavity Inserts
1. Install the cavity insert into the cavity block. Figure 5-101 Install cavity insert 2. Install the gate seal into the cavity insert. See Figure 5-102. Figure 5-102 Install gate seal Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 191: Installing A Melt Block
2. Insert the rectangular washer and the M8 bolt onto the melt block. Torque bolt at 27 Nm (20 ft.lbs). See Figure 5-105. 1. M8 bolt 2. Rectangular washer Figure 5-105 Install rectangular washer and bolt Melt-Cube assembly is now complete. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 192: Disassembling A Transfer-Seal/Torpedo And A Melt Block
5. Insert the extraction tool or pliers into the groove of the transfer seal, and gently twist the gate seal out of the cavity. See the following or Figure 5-107. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 193 If the sealing surfaces on either the gate seal or the melt block show significant damage, the part should be replaced to avoid leakage. 9. Reassemble the Melt-Cube. See “5.26.6.8 Assembling” on page 5-148. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 194: Installing A Melt-Cube In A Cavity Block
1. Make sure water to the cover plate is off, then remove the cover plate. 2. Turn on cooling to the rest of the plates, especially the cavity plates. NOTE Mold-Masters recommends a separate cooling circuit for the cover plate, to be able to assemble and disassemble it without affecting other cooling circuits.
Page 195: Section 6 - Hot Half Assembly
Install the cavity plate before nozzle temperatures become more than 55°C (130°F) hotter than the cavity plate. Otherwise the nozzles will have expanded too much and may be damaged during insertion. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 196 General Assembly drawing for instructions. For valve assembly details refer to “5.15 Hydraulic and Pneumatic Actuators” on page 5-45. Check that the nozzle well depth (L) in the cavity plate is to Mold-Masters specifications. See Figure 6-1. 1. Attach a crane that is rated to support the weight of the cavity plate.
Page 197: Installing A Stack Mold Cavity Plate
The assembly sequence will vary depending on the stack mold design. The following instructions should be considered as guidelines only. 1. Check that the nozzle well depth (L) in the cavity plate is to Mold-Masters specifications. See Figure 6-1. NOTE For valved systems, the Hot Half is provided with valve pins installed.
Page 198 13. Torque the mold mounting screws to required specifications. Refer to machine manufacturer’s documentation for torque values. 14. Connect wire lines, hydraulic, pneumatic and electrical components, as required. 15. Remove latches. 16. Set the mold opening sequence mechanism. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 199: Section 7 - Electrical Testing
Mold-Masters components and systems are either equipped with a protective earth conductor or there is a connector for this purpose. Before you carry out electrical work, make sure that the Hot Runner system is securely grounded. Turn the temperature control off and disconnect all electric wires coming from the mold.
Page 200: Doing A Check Of The Electrical Wiring
Make sure that the electrical equipment complies with its technical documentation. 7.3.2 Doing a Test of the Insulation Resistance Measure the insulation resistance between each pin of the Mold-Masters power connector, in particular the heating circuit and ground. The insulation resistance is measured at 500 V .
Page 201: Doing A Test Of The Conditions For Protection By Automatic Disconnection Of The Power Supply
Fault loop impedance verification and suitability of the associated overcurrent protective device. The power supply connections and incoming external grounding connections to the Hot Runner system must be verified by inspection (usually through a temperature control device). The conditions for protection by automatic disconnection of supply must be checked by both: •...
Page 202: Doing A Test Of The Continuity Of A Thermocouple
Measure the resistance between each pair of heater power wires at the mold power connector. Compare your reading with your General Assembly drawing. Where: R = resistance V = voltage P = power © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 203: Doing A Test Of The Continuity Of The Ungrounded Thermocouple
1. Set up a multimeter to read Ohms resistance. 2. Connect one lead to the red thermocouple wire. 3. Connect the other lead to the mold plate that the hot runner system is installed in. 4. If you see an Ohms resistance, replace the thermocouple (faulty thermocouple).
Page 205: Section 8 - System Startup And Shutdown
4. Connect all electrical components and monitor to ensure that all zones are receiving heat and all thermocouples are reacting appropriately. 5. If applicable, test the valve pin actuation, but only if the Hot Runner is at processing temperature. See CAUTION above.
Page 206: Startup
Machine barrel is up to processing temperature. b) Mold cooling is on and at cooling temperature. 3. Heat up all Hot Runner manifolds and / or bridges and inlets (excluding the nozzles) to processing temperature. 4. Begin nozzle heating when the manifolds and / or bridges have come within 50°C of processing temperature.
Page 207: Stack Mold Systems
Hot Runner. See also your controller user manual. 8.2.3.1 Melt-Link WARNING When the mold is open never inject material through Hot Runner system under high pressure. Failure to do so can result in serious injury or death. CAUTION CAUTION Failure to follow this procedure may result in leakage or damage occurring in the Hot Runner.
Page 208: Reverse Melt-Link
12. Fill the system under low pressure extrude using screw rotation. 8.2.3.2 Reverse Melt-Link WARNING When the mold is open never inject material through Hot Runner system under high pressure. Failure to do so can result in serious injury or death. CAUTION...
Page 209: Melt Cube
9. Heat the nozzles to the set-point temperature. 10. Wait 10 minutes. IMPORTANT The nozzle temperature must be set 6°C (10°F) lower than the Melt-Cube temperature. 11. Heat the Melt-Cube to the processing temperature. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 210: Shutdown
1. Turn off all heat to the system. 2. Leave the mold cooling system turned on until the Hot Runner system temperature is within 55°C (130°F) of the mold temperature. 8.3.2 Stack Mold Systems...
Page 211: Melt Link
2. Reduce nozzle temperatures to 150°C (300°F). 3. Turn off all zones. 8.3.4 Melt-Cube WARNING When the mold is open, never inject material through the Hot Runner system under high pressure. Failure to obey can result in serious injury or death. Hot Runner User Manual...
Page 212 Failure to do the following procedure may result in leakage or damage occurring in the Hot Runner. NOTE Thermally sensitive materials should be purged from the Hot Runner system prior to shutdown using a thermally stable material with a similar processing temperature.
Page 213: Section 9 - Color Change
Purgings may appear solid but may still be hot and cause serious injury. 1. Empty hopper of existing color and clean thoroughly. 2. Increase Hot Runner system temperature on all zones 20°C (68°F) above processing temperatures. On Mold-Masters controllers, simply push the boost button on the controller to increase temperatures for a pre- determined time and temperature.
Page 214: Procedure B: Comprehensive
6. Run 10 - 15 shots with natural material. 7. Back off the injection unit and switch off all heat on the Hot Runner. 8. Allow the Hot Runner system to cool down.
Page 215 COLOR CHANGE 13. Bring machine barrel back in. 14. Fill the Hot Runner with natural color resin to coat the melt channels with a neutral color (1-2 shots). 15. Introduce the new color. 16. Leave mold in open position and set the shot size to maximum possible.
Page 216: Section 10 - Maintenance
Hot Runner system. This chapter is a guide to maintaining selective components. Repairs that should be performed by Mold-Masters personnel are not included. If you need an item repaired that is not included in this section, please call Mold- Masters support.
Page 217: Removing A 1-Piece Valve Disk
Ensure that the pulling direction is perpendicular to the manifold surface. 1. EXTOOLAS10 2. Valve disk extraction tool 3. Valve disk (1-piece) Figure 10-2 1-piece valve disk extraction - method 1 © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 218 Ensure that the pulling direction is perpendicular to the manifold surface. 1. EXTOOLAS10 2. LHCSM4X16 (2x) 3. Spacer 4. Valve disk extraction tool 5. Valve disk (1-piece) Figure 10-3 1-piece valve disk extraction - method 2 Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 219: Removing A 2-Piece Valve Disk
See Figure 10-5. 1. EXTOOLAS10 2. LHCSM4X16 (2x) 3. Spacer 4. Extraction tool for continuous groove models 5. Valve disk stem Figure 10-5 For valve disks with continuous grooves © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 220 For close pitch conditions, use EXTOOLAS10 with a spacer. 5. Extract the valve disk from the manifold. IMPORTANT Ensure that the pulling direction is perpendicular to the manifold surface. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 221: Overview Of Valve Disk Extraction Tools
Style with thread M7-1.0 2-piece Extended Inverted EXTOOL42 Style with thread M10-1.5 2-piece Extended Inverted EXTOOL43 Style with thread M15-1.5 1. Flange 2. Stem * Discontinued. Spare parts available. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 222 Ø39 mm Valve Disks EXTOOL29 Non-Inverted Design Ø42 mm Valve Disks EXTOOL30 Non-Inverted Design Ø49 mm Valve Disks EXTOOL31 Non-Inverted Design 1. Flange 2. Stem * Discontinued. Spare parts available. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 223: Terminal Ends
Please contact Mold-Masters Spare Parts Department to ensure you have the correct repair kit and crimping tool. The tools, along with the lead wire replacement kit, are available through the Mold-Masters Spare Parts Department. © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 224: Assembling
2. Ensure the terminal end is clean. 3. Slide the element sleeve, silicon seal and ceramic insulator onto the wires. 4. Slide crimps onto leads. Stranded wire should extend beyond the crimp. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 225 7. Slide the ceramic insulator and silicon seal into place. 8. Screw the element sleeve into the position. Make sure that the silicon sleeve does not rotate with the sleeve which may damage the wire. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 226: Heater Plates
2. Slide ceramic sleeve off. 3. Remove the power leads using crimp removal tool. 1. Power leads 2. Set screws 3. Ceramic sleeve 4. Heater plate Figure 10-7 Terminal end assembly Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 227: Installing Power Leads
NOTE Use the socket supplied in the Mold-Masters tool kit to loosen the gate seal. It is recommended to use a temperature controller for this procedure. If a temperature controller is not available, contact your nearest Mold-Masters Service Department.
Page 228: Removing
It is recommended the nozzle be removed from the system before removing the gate seal. Use the socket supplied in the Mold-Masters tool kit to loosen the gate seal. The following procedure applies to all gate seals (including carbide) with threads larger than an M6 (excluding TIT Edge).
Page 229: Replacing
1. Clean the nozzle, especially the thread and runner. 2. Clean all residual plastic from the threads and counter bore of the gate seal. Figure 10-8 (A) Cleaning location © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 230 7. Torque the gate seal to the appropriate value. Refer to “Torque Settings” on page 4-3. 8. Check that the seal has bottomed out, heat nozzle to process temperature and re-torque seal. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 231: Nozzle Tips
3. Zero indicator to spacer blocks. 4. Move indicator to correct reference point on nozzle tip (per drawing). 5. Check that nozzle height is within drawing specification. 6. Repeat for each nozzle. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 232: Melt-Disk/Melt-Cube
10.6.1 Disassembling the Melt Link IMPORTANT Before shutting down the molding machine and mold, use maximum screw decompression to remove as much molten plastic from the Hot Runner system as possible. 1. Disassemble mold to expose the Melt-Disk. Plate insertion / removal to be done with all components in the cold condition.
Page 233: Actuators
10.7.1 Extraction Tools for Hydraulic and Pneumatic Actuators IMPORTANT EXTOOLAS10 replaces EXTOOL5500A / EXTOOL6500A / EXTOOLAS01. 1. EXTOOLAS10 2. Cylinder extraction tool 3. Cylinder Figure 10-9 Cylinder extraction tool © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 234 M5 screws 14. Spacer 15. Nord lock M8.0 washer 16. Special socket head cap screw [M8X30M] 17. Puller base 18. Socket head cap screw [M6X20] 19. Adapter key Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 235 VPAC0010/VPAC0011 HY680SA/HY680SAL EXTOOLAS10 EXTOOL680SAP PS0004TOOLx [MS11.04.035] [MS11.04.050] HY681SA/HY681SAL EXTOOL681SAP [MS11.04.035] HY8400x EXTOOLAS10 EXTOOL8400P1 PS0011TOOLx [MS11.04.030] [MS11.04.050] HY8500x HY8600xAR HY8800x PN6400x/PN6400xAR EXTOOLAS10 EXTOOL6400P [MS11.04.025] PN6410x/PN6410xAR PN6400SA EXTOOLAS10 EXTOOL6400SAP [MS11.04.040] © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 236: 5500 Series, 6X00 Series, And 7100 Series
Failure to do so may result in degradation of material in the system. When heating the Hot Runner system for maintenance, mold cooling should be on to protect seals and O-rings. For systems with Accu-Valve EX, Accu-Valve MX or Accu-Valve CX gate seals: Gate seals must be removed prior to removing or re-installing valve pins.
Page 237 8. To complete the assembly, refer to: a) Cylinder bottom assembly b) Piston assembly c) Cylinder top assembly d) Figure valve pin assembly e) Installing the valve actuator to the hydraulic plate © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 238: Extracting A Mag-Pin
MAINTENANCE 10-23 10.8 Extracting a Mag-Pin NOTE For the Mag-Pin extraction Mold-Masters recommends to use the extraction tool Mold-Masters part # EXTOOL13 (see below) with extraction tool Mold-Masters part # EXTOOLAS10. 1. EXTOOL13B 2. EXTOOL13A 3. M8 thread 4. M5 thread 1.
Page 239 Place the extraction tool EXTOOL13A on top of the valve pin holder. b) Couple the extraction tool with the M8 screw and M8 washer and extract the Mag-Pin assembly. 1. M8 screw 2. EXTOOL13A 3. M6 screw © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 241 Method 2: Extract the valve pin and holder using extraction tool EXTOOLAS10 with extraction tool EXTOOL13B. Use the M5 thread end for extraction of valve pin. 1. M8 thread 2. EXTOOL13B 3. M5 thread © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 242: Latches
For additional instructions on latching in the machine refer to the machine manufacturers manual. 1. Open the mold. 2. Ensure that the machine and Hot Runner controller has been locked out and tagged out. 3. Apply lockout / tagout to the machine power source and Hot Runner controller.
Page 243 13. Remove the latches. 14. Latch the cavity plate to the core plate or Cold Half. 15. Remove lockout / tagout. 16. Check the machine is in Mold Set mode. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 244: Latching A Cavity Plate To A Manifold Plate (Hot Half)
CAUTION The nozzles must be within 55°C (130°F) of mold temperature to prevent damage to Hot Runner and mold components. For cylindrical valve gated systems, valve pins should be in the open position prior to removal of the cavity plate to prevent damage.
Page 245 12. Install and torque the cavity plate mounting screws. Torque to required specifications. Refer to assembly drawings for required torque settings. 13. Install hoses if required. 14. Remove latches from both sides of the mold. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 246: Section 11 - Troubleshooting
One of the best resources may be your resin supplier. To help in this process, we welcome you to reference Mold-Masters Troubleshooting Guide which offers general information related to common issues. This document can be found in the troubleshooting section of Mold- Masters’...
Page 247: Section 12 - Glossary Of Terms
By increasing back pressure, mixing and plasticating are improved; however, screw recovery rates are reduced. Backplate: Inlet component to the Hot Runner manifold. Barrel: The part of the molding press where resin is melted. B-side: The mold half that mounts to the moving side of the injection molding press.
Page 248 Hot Runner Mold: A mold in which the runners are insulated from the chilled cavities and are kept hot. Hot Runner molds make parts that have no scrap.
Page 249 PET: Polyethylene Terephthalate, a type of polyester and a leading recyclable plastic material. Pinpoint Gate: A restricted gate of 0.030 in. or less in diameter, this gate is common on Hot Runner molds. Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 250 Sprue Bushing: A hardened-steel insert in the mold that accepts the Screw nozzle and provides an opening for transferring the melt. Sprue Gate: A passageway through which melt flows from the nozzle to the mold cavity. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 251 Thermal gate: A gate that is closed by temperature. Resin solidifies in the gate to block resin from flowing out of the hot runner. Thermoplastic: A polymer which melts or flows when heated. Thermoplastic polymers are usually not highly cross-linked, and act much like molecular solids: low melting and boiling points, high ductile strength.
Page 253: Index
Cylinder Top Assembly 5-54 Maintenance 5-146 Maintenance Procedure 10-27 Melt-Cube Components 5-134 Valve Pin Finishing of Tip 5-55 Melt Transfer Link Torque Chart 5-138 Startup and Shutdown 8-7 Hot Runner User Manual © 2022 Mold-Masters (2007) Limited. All Rights Reserved.
Page 254 7100 Series 5-57, 5-59, 5-60 Valve Disk 5-34, 5-39 Valve Disk Removal 10-1 Valve Pin Assembly 5-62 Valve Pin Lapping Procedure for Tapered Valve Pins 5-61 Warranty 1-2 © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Hot Runner User Manual...
Page 256 OCEANIA AUSTRALIA NEW ZEALAND tel: +61 407 638 314 tel: +61 407 638 314 e: australia@moldmasters.com e: newzealand@moldmasters.com www.moldmasters.com © 2022 Mold-Masters (2007) Limited. All Rights Reserved. © 2022 Mold-Masters (2007) Limited. All Rights Reserved. Master-Series User Manual ®...

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