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Kitagawa M0915RA Instruction Manual

M-h type rotary hydraulic cylinder
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INSTRUCTION MANUAL
M-H
ROTARY HYDRAULIC CYLINDER
DANGER
・ This instruction manual is for production engineers and maintenance
personnel in charge of operation of this product. When a beginner
uses this product, receive instructions from experienced personnel,
the distributor or our company.
・ Before installing, operating or maintaining this equipment, carefully
read this manual and the safety labels attached to the equipment.
Failure to follow these instructions and safety precautions could result
in serious injury, death, or property damage.
・ Store this manual near equipment for future reference.
・ If any questions related to safety arise about this manual, please
confirm them with the distributor or our company.
Kitagawa Corporation
77-1,Motomachi,Fuchu -shi,Hiroshima,726 -8610,Japan
type
CLOSED CENTER
TEL +81-(0)847 -40-0526
FAX +81-(0)847-45-8911
Version 1.12 (2021.07.07)
Original instructions

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Summary of Contents for Kitagawa M0915RA

  • Page 1 ・ Store this manual near equipment for future reference. ・ If any questions related to safety arise about this manual, please confirm them with the distributor or our company. Kitagawa Corporation 77-1,Motomachi,Fuchu -shi,Hiroshima,726 -8610,Japan TEL +81-(0)847 -40-0526 FAX +81-(0)847-45-8911...
  • Page 2 MA0882RHG Preface This manual provides detailed information about how to safely and correctly use the cylinder (M･H type, 09 size is M･R type) for a lathe. Before starting to use this cylinder, read this manual carefully and always follow the instructions and warnings in "Important Safety Precautions"...
  • Page 3 The chuck and cylinder from Kitagawa Corporation should be used together. If you must use a part not made by Kitagawa, check with us or our distributor to be sure it is safe to do so. We will not be responsible for injury, death, damage or loss caused by use of a chuck or cylinder made by another company unless this use has been approved by Kitagawa or its distributor.

  • Page 4: Table Of Contents

    MA0882RHG Table of Contents １． Structural Drawing and Parts List ----------------------------------------------------------------------5 1-1. Type display 1-2. Structural drawing 1-3. Scope of product 1-4. Parts list Important Safety Precautions -----------------------------------------------------------13 3. Specifications ----------------------------------------------------------------------------------------------20 3-1. Specification table 4. Hydraulic Oil-------------------------------------------------------------------------------------------------21 5. Trial Operation----------------------------------------------------------------------------------------------23 6.
  • Page 5 MA0882RHG For Machine Tool Manufacturers (Chapter 9) 9. Attachment--------------------------------------------------------------------------------------------------33 9-1. Outline drawing of attachment 9-2. Production and attachment of cylinder adapter 9-3. Production and attachment of draw bar 9-4. Attachment of cylinder 9-5. Tightening torque of cylinder attaching bolt 10. About Hydraulic Circuit Design-----------------------------------------------------------------------44 11.

  • Page 6: Type Display

    MA0882RHG 1. Structural Drawing and Parts List 1-1. Type display Type display as shown below Example Abbreviated name of M cylinders Nominal inside diameter of the cylinder Nominal piston stroke HA Inner air type (M09 type is RA) HB Inner coolant type HC None 5～7 Columns for special specification...

  • Page 7: Scope Of Product

    MA0882RHG 1-3. Scope of product This instruction manual is for the cylinder part. Fig. 2 ・ To prevent the work from flying, safe design, maintenance and erroneous action prevention of the hydraulic system to maintain the gripping force of the chuck is extremely important.

  • Page 8: Parts List

    MA0882RHG 1-4. Parts list ・HA(M09 type is RA) type M0915RA M1120HA21D、M1221HA21D、M1330HA21D Detail of Teflon seal Fig. 3...
  • Page 9 Ring O-ring O-ring Bracket 2（M0915RA:1） O-ring Slide pin 1（M0915RA only） O-ring Shim ring 1（M0915RA:0） O-ring M0915RA : 1 O-ring M1120HA21D : 1 Spacer M1221HA21D : 0 Oil seal M1330HA21D : 2 Teflon seal Adjusting plate Retaining ring Bearing Washer Bearing...
  • Page 10 MA0882RHG ・HB type Detail of Teflon seal Fig. 4...
  • Page 11 MA0882RHG Table. 2 Part name Quantity Part name Quantity Lock valve Socket head cap screw Relief valve Socket head cap screw Cylinder Socket head cap screw Rotary valve Socket head cap screw Piston Socket head cap screw O-ring Sleeve Sleeve cover O-ring O-ring Detectable plate...
  • Page 12 MA0882RHG ・HC type Fig. 5...
  • Page 13 MA0882RHG Table 3 Part name Quantity Part name Quantity Lock valve Socket head cap screw Relief valve Socket head cap screw Cylinder Socket head cap screw Rotary valve Socket head cap screw Piston Socket head cap screw Sleeve Socket button head cap screw Sleeve cover O-ring O-ring...

  • Page 14: Important Safety Precautions

    MA0882RHG Important Safety Precautions Important safety precautions are summarized below. Please read this section before first starting to use this product. Failure to follow the safety precautions below will result in ！ DANGER serious injury or death. Turn off main power supply before attaching, inspecting or replacing cylinder, and before adding oil.
  • Page 15 MA0882RHG Important Safety Precautions Failure to follow the safety precautions below will result in ！ DANGER serious injury or death. Do not allow the rotation speed of the chuck to exceed the maximum allowable speed limit. For All Users ・ If the rotation speed of the chuck exceeds the rotation speed limit, this is very dangerous as the chuck and work will fly out.
  • Page 16 MA0882RHG Important Safety Precautions Failure to follow the safety precautions below will result in DANGER serious injury or death. Always tighten the bolts at the specified torque. Use the bolts attached to the cylinder, and do not use bolts other than these. (Refer to pages 43) For All Users ・...
  • Page 17 MA0882RHG Important Safety Precautions Failure to follow the safety precautions below will result in DANGER serious injury or death. Use of a chuck and cylinder that cannot be used together safely may cause the cylinder to break at high pressure resulting in the chuck and work flying out.
  • Page 18 MA0882RHG Important Safety Precautions Failure to follow the safety precautions below will result in ！ DANGER serious injury or death. Provide sufficient strength for the draw bar (Refer to pages 37-39). Provide sufficient screw depth for the draw bar. Firmly tighten the draw bar. Apply adhesive to the thread part of the draw bar and screw it in at the specified torque.
  • Page 19 MA0882RHG Important Safety Precautions Failure to follow the safety precautions below could result in WARNING serious injury or death. Do not modify the cylinder. For All Users ・ Doing so may damage the cylinder and cause oil leakage which could result in a fire. And if the hydraulic oil leaks, the gripping force of the chuck will lower and the work may fly out, which is dangerous.
  • Page 20 ・ Dangerous since these lead to operation ・ Dangerous since it will be caught. mistakes and misjudgment. Do not attach the other than parts manufactured by Kitagawa Corporation to the cylinder. (Refer to pages 7-12, Fig.3-5) For All Users ・ Doing so may damage the cylinder and cause oil leakage which could result in a fire.

  • Page 21: Specifications

    MA0882RHG 3. Specifications 3-1. Specifications table Table 4 M1120HA21D M1221HA21D M1330HA21D Type M0915RA M1120HB21N M1221HB21N M1330HB21N M1120HC21D M1221HC21D M1330HC21D Piston stroke Push 64.7 87.6 105.7 125.3 Piston surface area 59.8 83.9 118.5 Pull 21.0 28.5 39.6 47.0 Push Piston maximum thrust force 19.4...

  • Page 22: Hydraulic Oil

    MA0882RHG 4. Hydraulic Oil ○ To keep good operation of the cylinder, it is recommended to use hydraulic oil with a viscosity of 32cSt at 40℃. (ISO VG32 equivalent product) ○ Replace the hydraulic oil about once every six months. ○...
  • Page 23 MA0882RHG Safety information about hydraulic fluid and anti-rust oil Applicable range ・ Hydraulic fluid sealed in the product at the delivery. ・ Antirust agent applied to the product at the delivery. First aid measures After inhalation: Remove victim to fresh air. If symptoms persist, call a physician. After contact with skin: Wash off with mild cleaners and plenty of water.

  • Page 24: Trial Operation

    MA0882RHG 5. Trial Operation Read safety precautions starting on page 13 before performing trial operation. （1） Check that the power voltage is at the specified voltage. （2） Set the pressure adjusting handle to the lowest state during trial operation, and check the turning direction of the pump in inching (shortly turn on and off the switch).
  • Page 25 MA0882RHG < Treatment when the cylinder cannot be operated > ○ Regardless of trial operation or normal operation, when the cylinder cannot be operated, try the operations specified below. 1. When the lathe spindle is rotating, stop rotation. 2. Turn the pressure adjusting handle of the pressure regulation valve for the chuck setting pressure (cylinder setting hydraulic pressure) at the hydraulic unit part, and raise the chuck setting pressure for about 0.5 MPa and repeat switching over the operation selecting switch of the cylinder to check the operation of the cylinder.

  • Page 26: Proximity Switch

    MA0882RHG 6. Proximity switch 6-1. Specification ○ M･H type (09 size is M･R) cylinder can be installed two pieces proximity switches for checking electrically the piston operation of a cylinder or for the detection of chucking/unchucking of a workpiece. The proximity switch is not included, so please prepare it by yourself by referring to the specifications of the proximity switch below.

  • Page 27: Adjusting The Position Of A Proximity Switch

    MA0882RHG 6-2. Adjusting the position of a proximity switch Read following instruction when you adjust the proximity switch. (Fig.8) ① Loosen the socket head cap screw [22] that fix the adjusting plate [14]. ② Unclamp the chuck. ③ Install one proximity switch, passing through the adjusting plate [14], and make it approach to the detectable plate [8] until the LED of proximity switch lights up.

  • Page 28: Maintenance And Inspection

    MA0882RHG 7. Maintenance and Inspection 7-1. Maintenance and inspection of the cylinder ○ If any malfunction occurs, return cylinder to our company for repair. If it is disassembled and reassembled at a place other than our company, it may not function correctly as well as cause precision failure.

  • Page 29: List Of Seals To Use

    JIS B2401 P30 JIS B2401 P30 JIS B2401 P32 JIS B2401 P36 O-ring JIS B2401 G90 JIS B2401 G105 JIS B2401 G115 JIS B2401 G125 2 (M0915RA:1) O-ring JIS B2401 G105 O-ring NOK S22 NOK S22 NOK S26 O-ring NOK S34...

  • Page 30: Special Instructions

    MA0882RHG 7-4. Special instructions ･HA type (M09 size is RA) ○ Do not use coolant. Failure to follow this instruction results in breakdown. ○ For the air piping, use a 3-point unit, and be sure to use oil mist. ○ Do not operate the cylinder without air. ○...
  • Page 31 MA0882RHG replace the mechanical seal if 10cc/h or more of coolant leaks from the drain port (C-Dr port) because of damage to the seal surface caused by foreign matter such as chips. Failure to do so results in damage to the mechanical seal. ○...

  • Page 32: Malfunction And Countermeasures

    MA0882RHG 8. Malfunction and Countermeasures 8-1. In the case of malfunction Check the points specified below again and take measures. Table 10 Defective Measures Check that the hydraulic pressure is operating by the motion of the flexible hose, etc. Piston Operation Check that there are no mistakes in piping.

  • Page 33: Where To Contact In The Case Of Malfunction

    MA0882RHG ・ If the chuck failed due to a seizure or breakage, remove the chuck from the machine, following the disassembly steps in the chuck instruction manual, and then remove the cylinder by the reverse steps of "9. Attachment" after page 33.

  • Page 34: For Machine Tool Manufacturers (Chapter 9)

    MA0882RHG For Machine Tool Manufacturers Following pages are described for machine tool manufacturers (personnel who attach a cylinder to a machine). Please read following instruction carefully when you attach or detach a cylinder to machine, and please sufficiently understand and follow the instructions for safe operation.
  • Page 35 MA0882RHG ・ Attach the manual switching valve at a position where it is easy to operate for the attaching equipment. ・ Install the hydraulic unit at a position where the drain hose is not kinked and the needle of the pressure gauge is easily read. ・...

  • Page 36: Production And Attachment Of Cylinder Adapter

    MA0882RHG 9-2. Production and attachment of cylinder adapter ・ Attach with the surface run-out of the cylinder adapter and the run-out of the spigot joint at 0.005 mm or less, and the face is not convex upward. (Fig. 12) Large run-out causes vibration and shortens the life of the cylinder significantly.
  • Page 37 MA0882RHG Table 11 (Unit mm) Socket head φA(F7) φB φC Type D (MAX) cap screw M0915RA 6-M8 M1120HA21D M1120HB21N 6-M8 M1120HC21D M1221HA21D M1221HB21N 6-M10 M1221HC21D M1330HA21D M1330HB21N 6-M10 M1330HC21D...

  • Page 38: Production And Attachment Of Draw Bar

    ・ If the screw is loose, the jaw stroke of chuck will shorten, which could allow the work to fly out. ･M1120HA/HB/HC、M1221HA/HB/HC、M1330HA/HB/HC Fig.13 HA (M09 size is RA) and HB type: Prepare the appearance and the 30-degree beveling which do not damage an o-ring. ・M0915RA Fig.14...
  • Page 39 MA0882RHG Fig.15 Table 12 Type Chuck PU206 M0915RA M28×1.5 A-112 ※1 M1120HA21D M1120HB21N PU208 M35×1.5 A-71 M1120HC21D M1221HA21D M1221HB21N PU210 M38×1.5 A-72 M1221HC21D M1330HA21D M1330HB21N PU212 M45×1.5 A-72 M1330HC21D ※1: In this combination, max speed is restricted to 6000min The dimension L in Fig.13,14 is determined from the distance A between the cylinder adapter and the back plate.
  • Page 40 MA0882RHG ・ Provide sufficient strength for the draw bar. If the draw bar is broken due to insufficiency of the strength, the gripping force will be lost instantly, which is dangerous as the work will fly out. ・ Material with the tensile strength 580MPa (58kgf/mm ) or more must be used for the draw bar.

  • Page 41: Attachment Of Cylinder

    MA0882RHG 9-4. Attachment of cylinder ・ When removing/installing the cylinder, use a lifting belt and perform as follows. (Fig.16) (1) To lift up the cylinder, engage a lifting belt with the draw-bar and lift up the cylinder while supporting it. (2) Insert the draw-bar into the spindle.
  • Page 42 MA0882RHG ・ To prevent the sleeve cover of the cylinder from rotating, provide a support by utilizing the screw of sleeve cover. ・ After attaching the support to the lathe, provide clearance between the screw of the sleeve cover and the support so that force is not applied to the sleeve cover. ○...
  • Page 43 MA0882RHG Cylinder attachment Cylinder adapter Fig.18 To obtain the above specified value of run-out, make the surface run-out of the cylinder adapter as small as possible. (0.005 mm TIR or less)

  • Page 44: Tightening Torque Of Cylinder Attaching Bolt

    ・ Use the bolts attached to the chuck, and do not use other bolts. However, if you must use other bolts not provided by Kitagawa, use bolts that have at least a strength classification of 12.9 (10.9 for M22 or more) and be sure they are long enough.

  • Page 45: About Hydraulic Circuit Design

    MA0882RHG 10. About Hydraulic Circuit Design ○ Consider the hydraulic circuit design so that the operation is easy and no mistakes in operation occur. Attempt failsafe for the circuit so as not to cause any accidents even in the case of blackout.
  • Page 46 MA0882RHG ○ It is incorporated with a mechanism to stop damage when the hydraulic oil filled inside the cylinder has increased its pressure due to the volume change (relief valve). Pay attention to the points specified below for functional maintenance of lock valve and relief valve.
  • Page 47 MA0882RHG ＜Installation＞ The hydraulic pressure supply ports are port A (cylinder pushing side) and port B (cylinder pulling side) in Fig.21-23. For the size of each port, see Table 14. Table 14 Type M0915 M1120 M1221 M1330 A port Rc1/4 B port Rc1/4 Ar port (M-HC)

  • Page 48: Other Information

    MA0882RHG 11. Other information 11-1. About standards and orders This product is based on the following standards or orders. ・ Machinery directive:2006/42/EC Annex I ・ EN ISO 12100:2010 ・ EN1550:1997+A1:2008 11-2. Information about markings of product Fig.21 M-HA type (M09 size is RA)
  • Page 49 MA0882RHG Fig.22 M-HB type Fig.23 M-HC type...

  • Page 50: About Disposal

    MA0882RHG 11-3.About disposal Ultimate disposal of this product should be handled according to all national laws and regulations.
  • Page 51 EC Machinery Directive 2006/42/EC Annex VII part B. Product : Cylinder Model : M series (Models M0915RA, M1120HA, M1120HB, M1120HC, M1221HA, M1221HB, M1221HC, M1221HD, M1330HA, M1330HB, M1330HC) Serial number : See original declaration Manufacturer...
  • Page 52 The products herein are controlled under Japanese Foreign Exchange and Foreign Trade Control Act. In the event of importing and/or exporting the products, you are obliged to consult KITAGAWA as well as your government for t he related regulation prior to any...

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