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This manual provides detailed information about how to safely and correctly use the power chuck (HW type) for a lathe.
Before starting to use this power chuck, read this manual carefully and always follow the instructions and warnings in 

"Important Safety Precautions"

 and 

"Precautions for Use"

 at beginning of the manual. Failure to follow these 

precautions could result in a serious accident.

In this manual, precautions for handling that are considered especially important are classified and displayed as shown below 
depending on the damage of risk including the seriousness of the harm that could result. Please sufficiently understand the 
meanings of these terms and follow the instructions for safe operation.

The triangle is the safety alert symbol used to alert you to potential safety hazards that could result in injury or death.

Safety Alert Symbol

Preface

Terms and Symbols Used for Safety Messages

This product is suitable for gripping a workpiece on the lathes or rotary tables. This product is equipped with the jaws to 
clamp the workpiece and they operate by means of a rotary cylinder. For any other applications, please contact us.
Our  company  will  not  assume  responsibility  for  injury,  death,  damage,  or  loss  resulting  from  not  following  the 
instructions in this manual.
There are countless things that cannot or should not be done, and it is impossible to cover all of them in this manual.
Therefore, do not perform any actions unless they are specifically allowed in this manual. If any questions related to 
safety arise about operation, control, inspection and maintenance which are not specified in this manual, please confirm 
them with our company or distributor before performing them.

Liability and How to Use this Manual

The guarantee period of this product is 1 year after delivery.
Use  the  parts  delivered  by  Kitagawa  Corporatin  for  all  the  parts  including  consumable  parts.  We  will  not  assume 
responsibility  for  injury,  death,  damage,  or  loss  caused  by  usage  of  parts  not  manufactured  by  Kitagawa  Corporatin. 
Additionally,  if  parts  other  than  genuine  parts  manufactured  by  Kitagawa  Corporatin  are  used,  this  guarantee  will  be 
completely invalid.
The  chuck  and  cylinder  from  Kitagawa  Corporatin  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.

Guarantee and Limitation of Liability

Indicates a hazardous situation which, if you not avoided, 
will result in death or serious injury.

Indicates a hazardous situation which, if you not avoided, 
could result in death or serious injury.

Indicates a hazardous situation which, if you not avoided, 
could result in minor or moderate injury.

Indicates instructions which, if not avoided, could result in 
damage to the equipment or a shortened work life.

DANGER

WARNING
CAUTION

NOTICE

Table of Contents

1. Structural Drawing and Parts List

   1-1. Type display
   1-2. Structural drawing
   1-3. Scope of product
   1-4. Parts list

2.   Important Safety Precautions 

3. Specifications

   3-1. Specifications
   3-2. Relationship between gripping force and rotation speed
   3-3. Relationship between gripping part center height, static griping force and input force /
     Relationship between top jaw mass moment and gripping force loss

4. Forming Soft Jaw

   4-1. Attachment of soft jaw
   4-2. Forming soft jaw
   4-3. Difference permissible range
   4-4. Operating sequence of 2 pairs of jaws

5. Usage 

   5-1. Precautions during gripping work with chuck
   5-2. Precautions during gripping work in irregular shape
   5-3. Precautions related to usage of jaw
   5-4. Precautions related to processing
   5-5. Attachment of locator and jig

6. Maintenance and Inspection 

   6-1. Periodic Inspection
   6-2. Grease lubrication
   6-3. Disassembling

7. Malfunction and Countermeasures 

   7-1. In the case of malfunction
   7-2. Where to contact in the case of malfunction

For Machine Tool Manufacturers (Chapter 8) 

8. Attachment 

   8-1. Outline drawing of attachment
   8-2. Manufacturing of the draw bar and the draw pipe
   8-3. Manufacturing of the back plate
   8-4. Attachment of chuck

9. Other Information 

   9-1. About standards and orders
   9-2. Information about markings of product
   9-3. About disposal

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Содержание HW-08

Страница 1: ...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 e...

Страница 2: ...al Therefore do not perform any actions unless they are specifically allowed in this manual If any questions related to safety arise about operation control inspection and maintenance which are not sp...

Страница 3: ...e 5 1 Precautions during gripping work with chuck 5 2 Precautions during gripping work in irregular shape 5 3 Precautions related to usage of jaw 5 4 Precautions related to processing 5 5 Attachment o...

Страница 4: ...aw nut Lock nut Body Chuck attaching bolt Plug Draw screw Cover 3 Type display as shown below 1 1 Type display 1 2 Structural drawing Fig 1 Fig 2 1 Structural Drawing and Parts List 0 8 6 9 9 9 Design...

Страница 5: ...is for the chuck part 1 3 Scope of product Fig 3 To prevent the work from flying safe design maintenance and erroneous action prevention of the hydraulic sys tem to maintain the gripping force of the...

Страница 6: ...t jaw Lever Lever pin 1 3 Lever pin 2 4 T nut Cover Plug Lock nut Draw screw Draw nut Coil spring Connecting handle Chuck attaching bolt Jaw attaching bolt Socket head cap screw Socket head cap screw...

Страница 7: ...on which allows rotation only when the door is the manual mode or the test mode During spindle rotation do not turn off hydraulic pump power supply and do not operate switching valve Cutting off hydra...

Страница 8: ...orce which deter mines the gripping force of the chuck does not exceed Excessive input force can lead to break age of the chuck which is very dangerous as the chuck can work can be damaged and fly out...

Страница 9: ...o obtain the required gripping force If the gripping force is insufficient this is dangerous as the work will fly out Determine the gripping force required for processing by the machine tool manufactu...

Страница 10: ...ely stop the machine and consult with our company or the distributor Unbalanced work generates dangerous centri fugal forces and the work could fly out The work slips Loss of accuracy The work begins...

Страница 11: ...screw is broken and then a gripping force is lost instantaneously causing the workpiece to fly out Use a cylinder with a lock valve safety valve check valve incorporated in case of sudden hydraulic p...

Страница 12: ...ower before adding grease Do not grip a chuck with a chuck Because it is easy to confuse the specifi cations of each chuck and the protrusion become long and is apt to raise rotation speed it is apt t...

Страница 13: ...W 15 Reference 1kN 101 97kgf 1MPa 10 197kgf cm 2 When storing this product the product should be subjected to the antirust treatment and stored in a place free from wetting condensation or freeze G6 3...

Страница 14: ...9 The numerical values are obtained with the Kitagawa gripping force meter The gripping position of the gripping force meter is at a position 1 2 of the height of the soft jaw top surface height from...

Страница 15: ...If the gripping part center height of the used top jaw dimension H in Fig 7 is higher than the gripping part center height of the standard soft jaw a large load is applied to the master jaw T nut jaw...

Страница 16: ...HEIGHT H mm GRIPPING CENTER HEIGHT H mm GRIPPING CENTER HEIGHT H mm INPUT FORCE PER A PLUNGER GRIPPING FORCE LIMIT INPUT FORCE PER A PLUNGER GRIPPING FORCE LIMIT STD SOFT JAW 20 0 28kN 24kN 20kN 12kN...

Страница 17: ...dynamic gripping force gripping force loss by static gripping force centrifugal force to become 1 3 of the static gripping force is 28kN and the required input to obtain this gripping force is 16 5kN...

Страница 18: ...the T nut and the attaching bolts attached to the chuck and do not use bolts other than these If commercially available bolts are used for an unavoidable reason use bolts at the strength classificati...

Страница 19: ...the No 4 jaw to the size B 4 2 Forming soft jaw When gripping the workpiece by this chuck basically grip it with 2 pairs of jaws in the same stroke position However if the workpiece dimensional toler...

Страница 20: ...ft jaw other than one made by Kitagawa Corporatin is used the engagement will be inferior and the master jaw will be deformed the gripping precision will worsen and the work will fly out due to grippi...

Страница 21: ...will break and this is dangerous as the chuck and work will fly out If the tool and the tool post contact the chuck or the work due to malfunction or tape mistake etc and impact is given immediately s...

Страница 22: ...4 Safety information about grease and anti rust oil Applicable range Designated grease Antirust agent applied to the product at the delivery First aid measures A f t e r i n h a l a t i o n Remove vi...

Страница 23: ...3 Disassembling Disassembling procedures Read the following disassembling procedures with reference to page 5 1 Turn off the main power of the machine before starting work 2 Loosen the jaw attaching b...

Страница 24: ...r the specification of the chuck Supply grease from the grease nipple and open and close the jaw several times without gripping a work Lower the rotation speed to a speed at which the required grippin...

Страница 25: ...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 For Machine Tool Manufactures 8 1...

Страница 26: ...e draw bar and the draw pipe Especially when a large sized hydraulic unit is used excessive surge pressure is generated and the gripping force becomes large therefore it may result in breakage of the...

Страница 27: ...e are not broken under any operating conditions If the draw bar or draw pipe is screwed in inadequately the screw is broken and a gripping force is lost instantaneously causing the workpiece to fly ou...

Страница 28: ...ension dimension A in Fig 18 of the back plate so that the plunger nut end surface contacts the back plate and stops when pulling the plunger nut If the stroke is larger than the one specified it may...

Страница 29: ...ied torque 4 Connect the chuck to the draw bar and the draw pipe Joint the lock nut with the draw pipe using the tightening handle Then tighten the lock nut locking screw After installing the lock nut...

Страница 30: ...12100 2010 EN1550 1997 A1 2008 Ultimate disposal of this product should be handled according to all national laws and regulations 9 1 About standards and orders 9 3 About disposal 9 2 Information abou...

Страница 31: ......

Страница 32: ...China B07 25 F West Tower Yangcheng International Trading Centre No 122 East Tiyu Road Tianhe District Guangzhou China No 6 Lane 5 Lin Sen North Road Taipei Taiwan 803 Ho B Dong Woolim Lion s Valley...

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