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FROM THE MANUFACTURER Thank you for your purchase of COSEN’s bandsaw machine and your trust in the COSEN brand. We are excited to have you as our valued customer and look forward as much as you do to the accelerated productivity, long-lasting endurance and superb cost-effectiveness this machine is about to bring to you.
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Safety rules Make sure your work area is cleared of uninvited people and obstacles every time before you start operating the machine. Never step or stand on the roller table. Your foot may slip or trip on the rollers and you will fall.
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Safety rules Never adjust the wire brush or remove chips while the saw blade is still running. It is extremely dangerous if hands or clothing are caught by the running blade. Stop the saw blade before you clean the machine. It is dangerous if hands or clothing are caught by the running blade.
Section 1 SAFETY INFORMATION SAFETY INSTRUCTIONS SAFEGUARD DEVICES EMERGENCY STOP SAFETY LABELS HEARING PROTECTION CE COMPLIANCE RISK ASSESSMENT Safety is a combination of a well‐designed machine, operator’s knowledge about the machine and alertness at all times. COSEN’s band machine has incorporated many safety measures during the design process and used protective devices to prevent personal injuries and potential risks. Warning labels also serve as a reminder to the operator. Throughout this manual, you will also see various safety‐related symbols indicating important information that you should take note of prior to use of the machine or part of its functions. These important safety instructions do not cover all possible situations that might occur. It is your responsibility to take caution and follow procedures stated in this manual when installing, maintaining and operating your machine. Cosen will not be liable for damages resulting from improper use. SAFETY INSTRUCTIONS What the icons and signs in this user manual mean: This icon marks DANGER; hazards or unsafe practices that may result in severe personal injury or death. This icon marks WARNING; hazards or unsafe practices that may result in personal injury or damage to the machine. This icon marks CAUTION; information that should be read before use to prevent damage to the machine. Supplementary information to the procedures described in this manual. Call your local agent or our service center for help. ...
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This manual has important safety All users must read it before performing any information. Read through it carefully activity on the machine, such as replacing before operating this machine to prevent the saw band or doing regular maintenance. personal injury or machine damage. Learn the operation, limitation and the specific Some personal protective equipment is potential hazards peculiar to this band required for the safe use of the machine, e.g. protection goggles. saw. Do not operate this machine unless it is Keep blade protection cover and wheel completely assembled. covers in place and in working order. Make sure the power switch is off before Use recommended accessories. Improper plugging in power cord. accessories may be hazardous. Disconnect the power cord before making Keep your work area well illuminated at adjustment, maintenance or blade minimum 500 lumen. changes. Keep your work area clean. Cluttered and Keep all guards and shields in place before slippery floors invite accidents. installing or starting up the machine. Remove adjusting keys, wrenches or any Wear proper apparel during operation loose parts or items from the machine and when servicing the machine. ...
SAFEGUARD DEVICES The safeguard devices incorporated in this machine include the following two main parts: 1. Protection covers & guards 2. Safety‐related switches Protection Covers & Guards 1. Idle wheel housing cover 2. Drive wheel housing cover 3. Gear reducer cover 4. Wire brush belt cover 5. Blade guard cover (left & right) 6. Safety fence (left & right) (CE model only, as shown in Illustration: Safety Fence) 7. Chip conveyor cover (CE model only) The protection devices should always be mounted on the machine whenever the machine is running. Do not remove any of these safeguard devices under any circumstances except when servicing the machine. Even skilled service technicians should still take cautions when performing repairs or service on the machine with any of these protectors removed. It is the responsibility of the user to make sure all these elements are not lost and damaged. Take note of the following main moving parts on the machine prior to and during machine operation: Saw bow assembly Drive and idle wheels Blade guide arm Saw blade guide rollers ...
Safety Related Switches To protect the operator, the following safety related switches on the machine are actuated when the machine is in operation. Wheel motion detector This is a proximity sensor used to detect the motion of the drive wheel. Once the saw blade is broken or as soon as it starts slipping, the sensor will detect and stop the drive wheel and the machine. Power switch Located on the cover of electrical cabinet, the power switch controls the main power of the machine. Up to your company’s internal rules, this power switch can be locked with a padlock or a luggage lock to protect the operator and the machine. Emergency stop button Located on the control panel, the button when pressed will stop the machine completely. Vise clamp switch This switch assures firm clamping of the workpiece. If the workpiece is not clamped properly, the saw blade is not allowed to run. Wheel cover interlock switches Located on the two wheel housings, these switches (CE model only) are used to assure that the machine will stop whenever the wheel covers are open. This device is to protect users from being cut by the running saw blades. Among all these safety switches, some of them are used to protect the users and some of them are used to prevent damage to saw blades, the workpiece and the machine itself, etc. We have taken every precaution to prevent injury or damage and to provide safe and economical operation of the machine. EMERGENCY STOP Designed to be easily accessible, the emergency stop button is located on the left bottom corner on the control panel and is made in red color and rubber material. For CE models, supplementary emergency stop button may be available at other area(s) of the machine depending on machine type. ...
SAFETY LABELS Safety‐related labels mounted on the machine are categorized into the following four categories. Please read through and understand them before operating the machine. Refer to Illustration: Safety Labels. DANGER Labels A red and white DANGER labels marks s hazards or unsafe practices that will result in severe personal injury or death. Label Meaning Label Meaning Hazardous Voltage DANGER: Running Blade Blade runs through this area. Keep TURN POWER OFF before your hands away from a running servicing. Failure to blade to avoid severe injury. The following the warning can arrow indicates direction of the result in severe injury. blade. WARNING Labels An orange and black WARNING label marks hazards or unsafe practices that can result in severe personal injury or damage to the machine. Label Meaning Label Meaning Cutting Hazard Cutting Hazard KEEP COVER CLOSED while KEEP HAND OFF while the blade is ...
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CAUTION Labels Yellow and black CAUTION labels mark hazards or unsafe practices that can result in considerable personal injury. Label Meaning Keep hands out of the machine while the blade is running. Power to machine must be turned off when changing blades or adjusting wire brush. NOTICE Labels Blue and white NOTICE labels mean unsafe practices that could result in damage to products or property. Label Meaning Replace the hydraulic oil every six months or every 1,200 hours of operation. Oil specification: Shell TELLUS 27 or Mobil DTE OIL LIGHT / HYDRAULIC 28 To extend blade life, always adjust the location of wire brush so that it is properly touching the blade. Also replace a worn wire brush with a new one. 1‐7...
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SAFETY INSTRUCTION Labels Green and white SAFETY INSTRUCTIONS are important reminders that should be read before operating the machine. Label Meaning 1. Read and understand the instruction manual and warning signs before operating machine. Failure to follow these instructions and warnings can result in serious injury or death. 2. Do not wear gloves, neckties, jewelry or loose clothing while operating the machine. 3. Always wear eye protection goggles. 4. Check blade tension and adjust blade guide before starting to cut. 5. Always clamp stock firmly in place before cutting. 6. Do not remove jammed or cut‐off pieces until blade has stopped. 7. Keep fingers out of path of blade. 8. Blade guards should be in place and used at all times. 9. Disconnect machine from power source before marking repairs or adjustments. 10. Do not operate while under the influence of drugs, alcohol or medication. ...
Parts not assembled tightly causing mechanical vibration Our products pass noise testing less than 78 dBA. Noise level vary according to working conditions and we recommend ear plugs or other hearing protection at all time. If your machine produces an undesirable noise while it is running, you should: Make sure all maintenance tasks have been performed following the prescribed maintenance schedule (Refer to Section 8). If maintenance does not seem to solve the problem, follow the troubleshooting procedures under Section 9. CE COMPLIANCE Cosen’s CE model is designed to satisfy regulations of the Council Directive on the approximation of the laws of the Member States relating to machinery (2006/42/EC) ‐ Annex I Essential health and safety requirements relating to the design and construction of machinery. RISK ASSESSMENT Risk assessment generally takes account of intended use and foreseeable misuse, including process control and maintenance requirements. We made every effort to avoid any personal injury or equipment damage during the machine design stage. However, the operator (or other people) still needs to take precautions when handling any part of the machine that is unfamiliar and anywhere on the machine that has potential hazards (e.g. the electrical control box). ...
Section 2 GENERAL INFORMATION SPECIFICATION MACHINE PARTS IDENTIFICATION FLOOR PLAN This band saw machine is designed by Cosen’s R&D engineers to provide you the following features and advantages: Safety This machine is designed to fully protect the operator from its moving parts during cutting operation. The machine and each compoment has passed strict testing (Council Directive on the approximation of the laws of the Member States relating to Machinery). The machine will shut off automatically when the saw blade is broken, protecting both the operator and the machine. Convenience & High‐Performance The machine is designed in the way that the operation and adjustment can be easily performed. The machine will stop automatically when out of stock. Dual valve system is designed to achieve optimal cutting performance with the simple setting of feed rate and perspective cutting pressure for different material. Durability The intended life‐span of the machine is counted based on regular daily operation. It is calculated with the life expectancy of 10 years under normal operating condition and exact attention to the maintenance schedule. 8 hours × 5 days × 52 weeks × 10 years = 20,800 hours 2‐1 ...
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SPECIFICATION SH‐460M Model 0° ‐45° ‐60° Angle 250 mm (9.8”) 230 mm (9.1”) 110 mm (4.3”) Round Capacity 230 mm (9.1”) 230 mm (9.1”) 110 mm (4.3”) Square 230 x 460 mm 230 x 230 mm 110 x 110 mm Rectangular (H x W) (9.1” x 18.1”) (9.1” x 9.1”) (4.3” x 4.3”) 60Hz: 23, 37, 58, 93 m/min (75, 121, 190, 305 fpm) Speed 50Hz: 19, 31, 45, 67 m/min (62, 102, 157, 256 fpm) Stepless: 20~71 m/min (66~233 fpm) 3,505 x 27 x 0.9 mm (138” x 1.06” x 0.035”) Size (L x W x T) ...
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MACHINE PARTS IDENTIFICATION Saw Bow Left Guide Arm Slide Plate Right Guide Arm Idle Wheel Cover Pulley Cover Control Panel Drive Wheel Cover Electrical Compartment Rotating Pivot Seat Work Bed Base 2‐3...
Section 3 MOVING & INSTALLATION LOCATION & ENVIRONMENT UNPACKING & INSPECTING LIFTING REMOVING SHIPPING BRACKET CLEANING INSTALLING RELOCATING LOCATION & ENVIRONMENT For your safety, please read all information regarding installation before proceeding. Install your machine in a place satisfying all of the following conditions: Space: ...
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UNPACKING & INSPECTING Unpack your machine carefully to avoid damage to machine parts or surfaces. Upon arrival of your new band saw, please confirm that your machine is the correct model and it comes in the same specification you ordered by checking the model plate on the machine base. ...
LIFTING When moving the machine, we strongly suggest you choose any one of the methods described below to move your machine. (Only applies to the machine with the design of the hanging point.) Move the machine to its location by using a crane and a wire rope sling that can fully withstand the weight of the machine (refer to machine specification under Section 2 General Information).
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When you work together with more than two people, it is best to keep constant verbal communication with each other. Use a forklift (Only applies to the machine with the design of the lifting point.) Make sure that the lifting rod can fully withstand the weight of the machine. (Refer to Section 2 – General Information for Specifications.) Machine lifting with a forklift should be done strictly according to the lifting points designated by the original manufacturer.
3. Use rolling cylinders You can use rolling cylinders to move your machine in a small machine shop environment. You must use rolling cylinders made in material of proper compressive strength. 4. Other ways to move If the machine does not have stickers, please contact your local agent immediately.
Do not remove the rust-preventive grease with a metal scraper and do not wipe the painted surfaces with solvent as doing so would damage surface paint. INSTALLING Cosen’s bandsaw machine is relatively easy to install. Follow these six easy steps to install your machine. Connect Leveling &...
Have a qualified electrician make the electrical connections. If the power supply voltage is different from the transformer and motor connection voltage shown on the label attached to the electrical compartment of the machine, contact COSEN or your agent immediately.
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Turn off the shop circuit breaker. Make sure the machine circuit breaker switch on the electrical compartment door is turned to OFF. Remove the screw securing the electrical compartment and then open the door. Pull the power supply cable and grounding conductor through the power supply inlet into the electrical compartment.
Anchoring the machine Normally there is no need to anchor the machine. If the machine is likely to vibrate, fix the machine to the floor with anchor bolts. Shock absorption steel plates are provided and can be placed under each leveling bolt to prevent their sinking into the concrete floor.
SAFETY PRECAUTIONS For your safety, please read and understand the instruction manual before you operate the machine. The operator should always follow these safety guidelines: The machine should only be used for its designated purpose. Do not wear gloves, neckties, jewelry or loose clothing/hair while operating the machine. For eye protection, always wear protective safety glasses. Check the blade tension and adjust blade guides before starting the machine. Use auxiliary clamping or supporting devices to fix material in place before cutting long workpieces. Always make sure the material is clamped firmly in place before starting to cut. Do not remove jammed or cut‐off pieces until the blade has come to a full stop. Keep fingers away from the path of the blade. Protection devices should be in place at all times. For your own safety, never remove these devices. Disconnect machine from the power source before making repairs or adjustments. Wear protection gloves only when changing the blade. Do not operate the machine while under the influence of drugs, alcohol or medication. Do not take your eyes off the machine while in operation. Do place warning signs to mark out machine work zone and restrict entry to be staff‐only. 4‐2 ...
BEFORE OPERATING Choosing an appropriate saw blade and using the right cutting method is essential to your cutting efficiency and safety. Select a suitable saw blade and cutting method based on your work material and job requirements e.g. cutting accuracy, cutting speed, economic concern, and safety control. Wet cutting If you choose dry cutting or low‐speed cutting, the chips may accumulate in machine parts and may cause operation failure or insulation malfunction. We suggest you choose wet cutting to avoid machine damage. Cutting unknown materials Before cutting an unknown material, consult the material supplier, burn a small amount of chips from the material in a safe place, or follow any other procedure to check if the material is flammable. Never take your eyes off the machine while in operation. Cutting fluid For cooling and lubrication purpose, we recommend you use water‐soluble cutting fluids. The following table lists out its pros and cons for your reference. Pro Con Have a high cooling effect Remove machine paint Not flammable Lose its rust protection effect if Economical deteriorated Does not require cleaning of the cut Tend to create foam Subject to decay products ...
CONTROL PANEL The control panel is located on the top of the electrical box. The operator must fully understand the function of each switch and button before operating the machine. Model without hydraulic vise No. Control Function No. Control Function 1 Blade start button 4 Saw bow down button 2 Emergency stop button 5 Blade descend speed control knob 3 Saw bow up button Control Buttons 1. Blade start button Press this button to start the blade motor and the built‐in light will come on. Make sure the material is securely clamped by the vise before cutting. Press the saw bow up button to stop the running blade. 2. Emergency stop button Press this button to stop the machine in an emergency. When the button is pressed, it brings the machine to a full stop. The button locks when pressed. In order to unlock it, please turn the button clockwise. 3.
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4. Saw bow down button When this button is pressed, the saw bow descends according to the preset speed of blade descend speed control knob. Before lowering the saw bow, the guide arm must be positioned outside the vise in order to avoid hitting the vise and causing damages. 5. Blade descend speed control knob This knob is used to adjust the descend speed of the saw blade. Turning the knob clockwise increases the blade descend speed. Blade descend speed is a determining factor to a good cutting time and quality cutoff surface. Also commonly known as the flow control valve Model with hydraulic vise No. Control Function No. Control Function 1 Vise open/clamp switch 6 Saw bow slowly down button (N/A) 2 Coolant pump on/off switch 7 Saw bow down button 3 Saw blade start button 8 Emergency stop button 4 Saw blade stop button 9 Power indicator lamp ...
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After the blade motor is running, the function of this switch is disabled for the safety concern. 2. Coolant pump on/off switch When this switch is set at “|“, the coolant pump operates and the cutting fluid will be injected. When this switch is set at “ ”, the coolant pump stops and cutting fluid supply will be terminated. Cutting fluid can lower the workpiece temperature during cutting. 3. Saw blade start button Press this button to start the blade motor. Make sure the material is securely clamped by the vise before cutting. 4. Saw blade stop button Press this button to stop the blade motor. After the cutting job is done, the saw blade will stop and the saw bow will automatically go up to the top limit switch position. 5. Saw bow up button When this button is pressed, the saw bow rises until the operator lets go of the button. While pressing the saw bow up button can stop the running blade, please still make use of the emergency stop button in an emergency. 6. Saw bow slowly down button(N/A) 7. Saw bow down button When this button is pressed, the saw bow descends according to the preset speed of blade descend speed control knob. Before descending the saw bow, please move the guide arm to a safe position to prevent it from hitting the vise. Press saw bow up button to stop saw bow descending. 8. Emergency stop button Press this button to stop the machine in an emergency. When the button is pressed, it brings the machine to a full stop. The button locks when pressed. In order to unlock it, please turn the button ...
9. Power indicator lamp When the lamp is on, it indicates the power to the machine is turned on. 10. Blade descend speed control knob This knob is used to adjust the descend speed of the saw blade. Turning the knob counterclockwise increases the blade descend speed. UNROLLING & INSTALLING THE BLADE Always wear leather gloves and protection glasses when handling a blade. Unrolling the blade Please follow the procedures illustrated below. Unroll and roll the blade Installing a new blade Step 1 ‐ Select the most suitable saw blade for your workpiece considering the size, shape and material. Step 2 ‐ Turn on the machine power. 4‐7 ...
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Step 3 ‐ Press the saw bow up button and elevate the saw bow to the highest position. Step 4 ‐ Release blade tension by turning the blade tension handle counterclockwise. The idle wheel will then move slightly toward the direction of the drive wheel. Step 5 ‐ Open the idle and drive wheel covers. Step 6 ‐ Loosen the screw and lower the wire brush. Step 7 ‐ Remove the old blade. If necessary, clean the carbide inserts before installing a new saw blade. Step 8 ‐ Place the new blade around the idle wheel and the drive wheel. Step 9 ‐ Insert the blade into the left and right tungsten carbide inserts. The back and the sides of the blade need to be touching the inserts as well as the adjacent rollers. Step 10 ‐ Place the blade to the drive wheel and press the back of the blade against the flange of the drive wheel. Step 11 ‐ Make sure the back of the blade is also pressed against the flange of the idle wheel. Step 12 ‐ Apply tension by turning the blade tension handle clockwise. Make sure you have proper blade tension. Proper tension exists when the blade does not slip on the drive wheel when cutting. Step 13 ‐ Make sure the sides of the blade are in close contact with the carbide inserts. Step 14 ‐ Gently close the idle and drive wheel covers. Step 15 ‐ Press the saw blade start button to start the blade. Allow the blade to run for a few rotations then press the saw bow up button to elevate the saw bow. Open the wheel covers and make sure the blade has not fallen off the drive and idle wheels. If the blade has shifted, follow the same procedure to reinstall the blade again. Step 16 ‐ Adjust wire brush to a proper position. Refer to Adjust wire brush in this section. 4‐8 ...
SELECTING BLADE SPEED Blade speed selection should be made according to the material being cut. The following chart provides information on blade speed and is used for reference only. Material Speed Pulley Groove Used 50 Hz 60 Hz Motor pulley Saw Pulley High speed alloy, stainless and 57 68 Smallest Large heavy cross section material Tool, stainless and alloy steel, 100 120 Small Medium bearing bronze Cast iron, mild steel, hard brass, 164 196 Medium Small bronze Plastic, copper, soft brass, 277 330 Large Smallest aluminum, other light materials Some materials due to manufacturing processes such as certain types of cast iron pipe or materials containing certain types of welds cannot be cut on the machine. ADJUSTING BLADE SPEED 4 Speed Step Pulley ...
Variable Stepless Pulley Drive Infinitely variable blade speed is easily achieved with this optional device. Our variable stepless pulley drive assembly allows the operator to select the optimum speed for best performance in all cutting applications. Turn the blade speed control knob clockwise to decrease blade speed; counterclockwise to increase speed. On and behind the control knob is also the speed mark indicator showing current speed level. Refer to the blade speed reference chart posted on the pulley cover to see the actual blade speed in m/min or Blade Speed Control Knob ft/min. Blade Speed Reference Chart Speed Mark Indicator ANGLE CUTTING The swivel sawhead allows the user to cut at any angle between 0° (straight cut) and 60° (miter cut). The angles have been accurately configured before machine shipment. For your miter‐cutting jobs, simply loosen the angle lock handle, swivel the saw bow until the pointer points to your desired angle and lock the saw bow via angle lock handle. Also loosen the vise bolts and adjust the vise position according to the miter cut angle. 4‐10 ...
ADJUSTING FEED RATE (CUTTING PRESSURE) To obtain desired feed rate (cutting pressure), the “hydraulic cylinder” (#4) and “feed tension spring” (#6) are to be adjusted together. 1. Saw bow 2. By‐pass valve (Do not make adjustment here.) 3. Workbed 4. Hydraulic cylinder 5. Bracket 6. Feed tension spring 7. Lock nut 8. Adjustment screw 9. Wire rope guide wheel 10. Lock screw 11. Gearbox 12. Screw bow bracket Feed pressure is the amount of pressure forcing the blade downward into the material. Proper feed pressure is important. Excessive pressure can break the blade or stall the saw. Insufficient pressure rapidly dulls the blade. The hydraulic cylinder regulates the rate at which the blade is lowered into the material being cut. Adjusting the blade descend speed control knob provides an infinite choice for feed rate. When cutting workpiece of 2 mm thick or below, please adjust the blade descend speed control knob to between “1~2” gradually; when cutting workpiece of 3 mm and above, to “3~4” gradually. ...
ADJUSTING WIRE BRUSH Follow these steps to adjust wire brush to appropriate position: Step 1 ‐ Open the drive wheel cover. Step 2 ‐ Adjust the screw to make brush move up / down until it makes proper contact with the saw blade (see below illustration). Step 3 ‐ Close the drive wheel cover. Proper Improper ADJUSTING SAW ARM Adjust the blade guide (guide arm) position based on the size of your workpiece: Step 1 – Loosen the blade guide locking handle. Then adjust the guide arm to a position suitable for your workpiece size. Locking Handle Step 2 – After adjustment is made, tighten the blade guide locking handle. CUTTING IRREGULAR CROSS SECTION When cutting irregularly‐shaped material, if possible, avoid positioning the work in the way that the cut would be started on a sharp corner. Arrange your workpiece in the way that as many teeth as possible will be applied to the work at one time. 4‐12 ...
ADJUSTING COOLANT FLOW Step 1 – Press the power on button to start the saw blade drive motor. Step 2 – Lower the saw bow. Step 3 – Use the flow control valve (shown below) to adjust the amount of fluid flowing to the cutting area. Adjust the flow amount if you observe the following changes to the chips generated from cutting. If the chips are sharp and curved, increase the coolant flow amount. If the chips are granulated, decrease the coolant flow amount. INSTALLING MATERIAL STOP BRACEKT Step 1 ‐ Install the depth bar (Fig 9, #2) and tighten the set screw (Fig 9, #1). (The depth bar is taken off from the machine base during transit for safety reason. Step 2 ‐ Lift the saw bow and clamp material securely with vise. Step 3 ‐ Lower the saw bow to allow about 1 mm clearance between saw blade teeth edge and the top of the material. Then measure your desired cutoff length. Step 4 ‐ Loosen the fastening bolt (Fig 9, #3) Step 5 ‐ Slide and position the stopper (Fig 9, #6) so that the end of stopper faces the direction of the front end of the material. Then tighten the stopper handle (Fig 9, #5) to fix the stopper in the bracket (Fig 9, #4). Step 6 ‐ Move the stopper bracket (Fig 9, #4) toward the Fig 9 Material Stop Bracket workpiece so the stopper end just touches the front of the material, then tighten the fastening bolt (Fig 9, #3). ...
ADJUSTING HORIZONTAL STOP SPRING CUSHION Always make sure the power cord is disconnected from power source when making adjustments. Complete Cut – Adjusting Horizontal Stop Spring Cushion The workpiece should be able to cut through completely. If it does not, please follow these steps to adjust the horizontal stop spring cushion. Step 1 ‐ Place a level on the workbed (Fig 10, #4) to make sure the bed is level. Step 2 ‐ Loosen the lock nut (Fig 10, #3) and lower down the saw bow. Place the level on top of the saw blade (Fig 10‐A) to check its leveling against the bed horizontal line. Adjust the screw (Fig 10, #2) until the blade is level. Step 3 ‐ Tighten the lock nut (Fig 10, #3) when leveling is obtained. If the saw blade top line is not leveled against the bed horizontal line, the workpiece will not be able to cut off completely. Automatic Shut‐Off – Adjusting Horizontal Stop Spring Cushion The motor should shut off immediately after the blade has cut through the material and right before the head comes to rest on the horizontal stop spring cushion. If it does not, the spring cushion must be adjusted. 1. Check the horizontal stop spring cushion. Refer to “Complete Cut – Adjusting Horizontal Stop Spring Cushion.” 2. Raise the saw head and press the power on button to ON. Lower the saw head slowly and observe the switch mechanism. 4‐14 ...
Section 5 ELECTRICAL SYSTEM ELECTRICAL CIRCUIT DIAGRAMS Model without safety doors & hydraulic vise P.5‐2 Power Supply Layout P.5‐3 Circuit Board Layout Model with safety doors & without hydraulic vise P.5‐4 Power Supply Layout P.5‐5 Circuit Board Layout Model with hydraulic vise P.5‐6 Power Supply Layout P.5‐7 Circuit Board Layout P.5‐8 Control Panel Layout 5‐1...
Section 7 BANDSAW CUTTING: A PRACTICAL GUIDE INTRODUCTION SAW BLADE SELECTION VISE LOADING BladeBreak -In SOLUTIONS TO SAWING PROBLEMS...
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INTRODUCTION TPI: The number of teeth per inch as measured from gullet to gullet. 2. Tooth Rake Angle: The angle of the tooth face measured with respect to a line perpendicular to the cutting direction of the saw. 3.Tooth Pitch: Tooth pitch refers to the number of teeth per inch (tpi). 1 inch equates to 25.4 mm. A distinction is made between constant tooth pitches with a uniform tooth distance, 2 tpi for example, and variable tooth pitches with different tooth distances within one toothing interval.
4. Tooth pitch The main factor here is the contact length of the blade in the workpiece. If it is 4P, 25.4 ÷ 4 P = 6.35 mm, that is, one tooth is 6.35 mm. If it is 3P, 25.4 ÷ 3 P = 8.46 mm If the number is small, it means that the tooth is large. What is written as 3/4 is that it is a variable pitch of large (3) / small (4).
The following diagrams suggest some costeffective ways of loading and fixturing. Be sure, regardless of the arrangement selected, that the work can be firmly secured to avoid damage to the machine or injury to the operator. BladeBreak -In Completing a proper break-in on a new band saw blade will dramatically increase its life. 1.
Section 8 MAINTENANCE & SERVICE INTRODUCTION BASIC MAINTENANCE MAINTENANCE SCHEDULE BEFORE BEGINNING A DAY’S WORK AFTER ENDING A DAY’S WORK Every 2 weeks First 600hrs for new machine,then every 1200hrs EVERY SIX MONTHS STORAGE CONDITIONS TERMINATING THE USE OF MACHINE OIL RECOMMENDATION FOR MAINTENANCE INTRODUCTION For the best performance and longer life of the band saw machine, a maintenance schedule is...
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MAINTENANCE SCHEDULE We suggest you do the maintenance on schedule. Before beginning a day’s work 1. Please check the hydraulic oil level. If oil level volume is below 1/2, please add oil as necessary.(Filling up to 2/3 level is better for system operation.) 2.
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Every six months 1.Clean the filter of the cutting fluid. 2.Replace the transmission oil for every half of a year(or 1200 hours). Check the sight gauge to ascertain the transmission level. Recommended TRANSMISSION OIL Omala oil HD220 Mobil comp 632 600W Cylinder oil 3.Replace the hydraulic oil.
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OIL RECOMMENDATION FOR MAINTENANCE Item Method Revolution Suggest oil Dovetail guide Keep grease covered. Antirust. Daily Shell R2 Roller bearing Sweep clean and oil with lubricant. Daily SEA #10 Bed roller / surface Sweep clean and oil with lubricant. Daily SEA #10 Nipples of bearing Use grease gun, but not excess.
Section 9 TROUBLESHOOTING INTRODUCTION PRECAUTIONS GENERAL TROUBLES & SOLUTIONS MINOR TROUBLES & SOLUTIONS MOTOR TROUBLES & SOLUTIONS BLADE TROUBLES & SOLUTIONS SAWING PROBLEMS & SOLUTIONS RE-ADJUSTING THE ROLLER TABLE INTRODUCTION All the machines manufactured by us pass a 48 hours continuously running test before shipping out and we are responsible for the after sales service problems during the warranty period if the machines are used normally.
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PRECAUTIONS When an abnormality occurs in the machine during operation, you can do it yourself safely. If you have to stop machine motion immediately for parts exchanging, you should do so according to the following procedures: Press HYDRAULIC MOTOR OFF button or EMERGENCY STOP button. ...
MINOR TROUBLES & SOLUTIONS TROUBLE PROBABLE CAUSE SUGGESTED REMEDY Saw blade motor does not run Overload relay activated Reset even though blade drive button Saw blade is not at forward Press SAW FRAME is pressed. limit position. FORWARD button MOTOR TROUBLES & SOLUTIONS TROUBLE PROBABLE CAUSE SUGGESTED REMEDY...
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BLADE TROUBLES AND SOLUTIONS DISCONNECT POWER CORD TO MOTOR BEFORE ATTEMPTING ANY REPAIR OR INSPECTION. TROUBLE PROBABLE CAUSE SUGGESTED REMEDY Too few teeth per inch Use finer tooth blade Loading of gullets Use coarse tooth blade or cutting lubricant. Teeth strippage Excessive feed Decrease feed...
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SAWING PROBLEMS AND SOLUTIONS Other than this manual, the manufacturer also provides some related technical documents listed as follows: Sawing Problems and Solutions Vibration during cutting Failure to cut Short life of saw blade Curved cutting Broken blade ...
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SOLUTIONS TO SAWING PROBLEMS Table Of Contents #1. Heavy Even Wear On Tips and Corners Of Teeth #11. Uneven Wear Or Scoring On The Sides Of Band #2. Wear On Both Sides Of Teeth #12. Heavy Wear And/Or Swagging On Back Edge #3.
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#2. Wear On Both Sides Of Teeth Probable Cause : A. Broken, worn or missing back-up guides allowing teeth to contact side guides. B. Improper side guides for band width. C. Backing the band out of an incomplete cut. #3. Wear On One Side Of Teeth Probable Cause : A.
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#5. Body Breakage Or Cracks From Back Edge Probable Cause : A. Excessive back-up guide "preload" will cause back edge to work harden which results in cracking. B. Excessive feed rate. C. Improper band tracking – back edge rubbing heavy on wheel flange.
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#8. Gullets Loading Up With Material Probable Cause : A. Too fine of a tooth pitch – insufficient gullet capacity. B. Excessive feeding rate producing too large of a chip. C. Worn, missing or improperly positioned chip brush. D. Insufficient sawing fluid due to inadequate supply, improper ratio and/or improper application.
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#12. Heavy Wear And/Or Swagging On Back Edge Probable Cause : A. Excessive feed rate. B. Excessive back-up guide "preload". C. Improper band tracking – back edge rubbing heavy on wheel flange. D. Worn or defective back-up guides. #13. Butt Weld Breakage Probable Cause : A.
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#16. Body Breakage Or Cracks From Gullets Probable Cause : A. Excessive back-up guide "preload". B. Improper band tension. C. Guide arms spread to maximum capacity. D. Improper beam bar alignment. E. Side guide adjustment is too tight. F. Excessively worn teeth. #17.
#20. Broken Band Shows A Twist In Band Length Probable Cause : A. Excessive band tension B. Any of the band conditions which cause the band to be long (#18) or short (#19) on tooth edge. C. Cutting a tight radius. RE-ADJUSTING THE ROLLER TABLE If the feeding table suffers the huge stroke and the alignment is effected, follow the below procedure to adjust.
Section 10 PARTS SPARE PARTS RECOMMENDATIONS PART LIST SPARE PARTS RECOMMENDATIONS The following table lists the common spare parts we suggest you purchase in advance: Part Name Part Name Saw blade Filter Wire brush Steel plates Carbide inserts Rollers Bearings Belt Chain Duster seal Asbestos Washer 10‐1...
Section 11 Warranty Warranty New machines are warranted to be free from defects in workmanship and material for a period of one (1) year from the date of shipment by Seller. The warranty period is based on normal usage of two thousand eighty hours (2080) per year and is reduced proportionately for any excess usage. Products, which under normal operating conditions in Buyer’s plant are defective in workmanship or material, will be repaired or replaced at the option of Seller. This warranty does not cover shipping freight charges for either the return of the defective part or for the shipping of the replacement or repaired part. Seller will have no obligation to repair or replace perishable parts, or materials or parts damaged by misuse, negligence or failure of Buyer to provide appropriate maintenance and service as stated in the operator’s manual or industry standard and normally acceptable practices. This warranty does not apply if the machine has been altered or modified without our prior written consent. In the case of components or units purchased by Seller including work holding devices, tool holders, motors and controls, the warranty shall not exceed that received by Seller from the supplier of such components or units. Seller will not assume responsibility for products or components returned to Seller without prior consent or for unauthorized repairs to its products, even though defective. Electrical Equipment: The warranty available for all electrical components to the Buyer will be voided if the voltage supplied to the machine is found to be outside the stated voltage of the machine by +/‐ 10% and/or grounded at machine. Accessories Supplied with Manufacturer’s Equipment: The warranties available to the Buyer are those extended by the accessory manufacturer, if any, to the extent they are in force and effect. The ACCESSORY MANUFACTURER’S WARRANTY, if any, is exclusive and is in lieu of all other warranties whether written, oral or implied. 11‐1 ...
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