Kitagawa M0915RA User manual

Version 1.12 (2021.07.07)
Original instructions
INSTRUCTION MANUAL
M-H type
ROTARY HYDRAULIC CYLINDER
CLOSED CENTER
Kitagawa Corporation
77-1,Motomachi,Fuchu-shi,Hiroshima,726-8610,Japan
TEL [phone]
FAX [phone]
・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.
DANGER

MA0882RHG
1
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" and "Precautions for Use"
at beginning of the manual. Failure to follow these precautions could result in a serious
accident.
Terms and Symbols Used for Safety Messages
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.
Safety Alert Symbol
The triangle is the safety alert symbol used to alert you to potential safety hazards that
could result in injury or death.
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.

MA0882RHG
2
Liability and How to Use this Manual
This product is a hydraulic device to control the operation of power chuck installed on the
lathes or rotary tables. 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.
Guarantee and Limitation of Liability
The guarantee period of this product is 1 year after delivery.
Use the parts delivered by Kitagawa Corporation 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 Corporation. Additionally, if parts other than genuine
parts manufactured by Kitagawa Corporation are used, this guarantee will be completely
invalid.
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.

MA0882RHG
3
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
2. Important Safety Precautions -----------------------------------------------------------13
3. Specifications ----------------------------------------------------------------------------------------------20
3-1. Specification table
4. Hydraulic Oil-------------------------------------------------------------------------------------------------21
5. Trial Operation----------------------------------------------------------------------------------------------23
6. Proximity switch--------------------------------------------------------------------------------------------25
6-1. Specification
6-2. Adjusting the position of a proximity switch
7. Maintenance and Inspection----------------------------------------------------------------------------27
7-1. Maintenance and inspection of cylinder
7-2. Maintenance and inspection of hydraulic unit
7-3. List of seals to use
7-4. Special instructions
8. Malfunction and Countermeasures-------------------------------------------------------------------31
8-1. In the case of malfunction
8-2. Where to contact in the case of malfunction

MA0882RHG
4
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. Other Information ----------------------------------------------------------------------------------------47
11-1. About standards and orders
11-2. Information about markings of product
11-3. About disposal

MA0882RHG
5
1. Structural Drawing and Parts List
1-1. Type display
Type display as shown below
1-2. Structural drawing
Fig. 1 Note) Proximity switch is not included.
Please prepare by yourself.
1
2
3
4
5
6
7
Example
M
11
20
HA
2
1
D
1.
M
Abbreviated name of M cylinders
2.
11
Nominal inside diameter of the cylinder
3.
20
Nominal piston stroke
4.
HA
Inner air type (M09 type is RA)
HB
Inner coolant type
HC
None
5～7
Columns for special specification

MA0882RHG
6
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. Thoroughly read the “Important Safety
Precautions” on and after page 13 in this manual.
・As for the chuck, follow the instruction manual for the chuck.

MA0882RHG
7
1-4. Parts list
・HA(M09 type is RA) type
M0915RA
M1120HA21D、M1221HA21D、M1330HA21D
Detail of Teflon seal
Fig. 3

MA0882RHG
8
Table 1
No.
Part name
Quantity
No.
Part name
Quantity
1
Lock valve
2
19
Socket head cap screw
4
2
Relief valve
2
20
Socket head cap screw
2
3
Cylinder
1
21
Socket head cap screw
2
4
Rotary valve
1
22
Socket head cap screw
4
5
Piston
1
23
Socket button head cap screw
3
6
Sleeve
1
24
O-ring
3
7
Sleeve cover
1
25
O-ring
3
8
Detectable plate
1
26
O-ring
2
9
Ring
1
27
O-ring
1
10
Bracket
1
28
O-ring
2（M0915RA:1）
11
Slide pin
2
29
O-ring
1（M0915RA only）
12
Shim ring
1
30
O-ring
1（M0915RA:0）
13
Spacer
M0915RA : 1
M1120HA21D : 1
M1221HA21D : 0
M1330HA21D : 2
31
O-ring
1
32
O-ring
1
33
Oil seal
1
34
Teflon seal
2
14
Adjusting plate
2
35
Retaining ring
1
15
Bearing
1
36
Washer
4
16
Bearing
1
37
Washer
3
17
Socket head cap screw
6
38
Washer
2
18
Socket head cap screw
6

MA0882RHG
9
・HB type
Detail of Teflon seal
Fig. 4