Table of Contents
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INSTRUCTION MANUAL
SR
HIGH SPEED ROTARY HYDRAULIC
CYLINDER OPEN CENTER
・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
Te l . +81-847-40-0561
Fax. +81-847-45-8911
Version 1.06 (2019.09.03)
Original instructions
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Table of Contents
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Summarization of Contents
Structural Drawing and Parts List
Type display
Explains the type display system for SR cylinders and its components.
Structural drawing
Presents a structural diagram of the SR type cylinder and its main parts.
Scope of product
Clarifies that this instruction manual covers the cylinder part of the product.
Parts list
Provides a detailed list of parts for the cylinder with corresponding numbers and quantities.
Important Safety Precautions
Power Off Before Maintenance
Turn off the main power supply before performing cylinder maintenance or adding oil.
Close Door Before Spindle Rotation
Ensure the machine door is closed before rotating the spindle for safety.
Hydraulic Power During Spindle Rotation
Avoid turning off hydraulic power or operating valves during spindle rotation to maintain grip.
Adhere to Maximum Rotation Speed
Do not exceed the maximum allowable rotation speed of the chuck to prevent parts from flying out.
Respect Maximum Input Force
Ensure chuck input force, including piston thrust and draw pipe pull, does not exceed the maximum allowable limit.
Inside Diameter Gripping Pressure Limit
When gripping internally, hydraulic pressure must be 1/2 or less of the maximum allowable input.
SR Cylinder Pressure Setting
Adjust setting pressure for SR cylinders based on specific model requirements to prevent damage.
Attach Cylinder Covers
Ensure protective covers are attached to the cylinder periphery before operation to prevent entanglement.
Bolt Tightening Torque
Always tighten bolts to the specified torque using the provided bolts to prevent breakage and flying parts.
Chuck and Cylinder Compatibility
Ensure chuck and cylinder compatibility to prevent breakage and flying parts due to high-pressure issues.
Solenoid Valve for Gripping Position
Use a solenoid valve that maintains gripping position when no current is carried for safety.
Draw Pipe Strength and Installation
Ensure adequate draw pipe strength and proper installation to prevent loss of gripping force and flying work.
Do Not Modify Cylinder
Avoid modifying the cylinder as it can cause damage, oil leakage, fire, or loss of gripping force.
Avoid Rotation Without Hydraulic Pressure
Never rotate the cylinder without hydraulic pressure to prevent seizing and loss of gripping force.
Periodic Hydraulic Oil Addition
Regularly add hydraulic oil and use a filter to maintain cylinder function and prevent seizing.
Clean Piping Before Assembly
Thoroughly clean pipes before assembly to prevent oil leakage, fire, and seizing due to foreign matter.
Avoid Operation Under Influence
Refrain from operating the machine while under the influence of alcohol or medication to prevent accidents.
Appropriate Work Attire
Do not wear loose clothing, jewelry, or gloves that can be caught in the machine during operation.
Attaching Non-Kitagawa Parts
Consult page 26 for attaching parts not manufactured by Kitagawa, ensuring their safety for usage conditions.
Vertical Cylinder Installation Prohibited
Do not install the cylinder vertically as it can cause oil leakage and potentially result in a fire.
Specifications
Specifications table
Presents a detailed specification table for various SR cylinder models, including dimensions and performance data.
Hydraulic Oil
Recommended Hydraulic Oil
Use hydraulic oil with a viscosity of 32cSt at 40°C (ISO VG32 equivalent) for optimal cylinder operation.
Hydraulic Oil Replacement Schedule
Replace the hydraulic oil approximately every six months for consistent performance and longevity.
Trial Operation
Trial Operation Steps
Guides through essential steps for initial trial operation, including voltage, pressure, and speed checks.
Troubleshooting Cylinder Operation Issues
Provides steps to resolve issues when the cylinder cannot be operated during trial or normal operation.
Product Usage Description
Explains the product's function as a hydraulic device to control power chucks on lathes and rotary tables.
Maintenance and Inspection
Maintenance and inspection of the cylinder
Details on cylinder maintenance and inspection; advises returning to the company for repair if disassembled.
Maintenance and inspection of hydraulic unit
Instructions for cleaning the suction strainer and replacing hydraulic oil for the hydraulic unit.
List of seals to use
Provides a comprehensive list of O-rings and seals required for maintenance, referenced by figure and type.
Malfunction and Countermeasures
In the case of malfunction
Provides a table listing defective symptoms and corresponding measures for troubleshooting cylinder malfunctions.
Where to contact in the case of malfunction
Advises contacting the distributor or branch office for assistance with any malfunctions that cannot be resolved.
Coolant Collector
Outline
Describes the coolant collector's function and attachment to the cylinder for collecting coolant from the draw pipe.
Type and applicable cylinder
Lists different coolant collector types and their corresponding applicable cylinder models.
Attachment
Provides instructions on how to attach the coolant collector main body and the detectable plate to the cylinder.
Positional adjustment of proximity switch
Details the procedure for adjusting the position of proximity switches on the coolant collector.
Precautions
Offers important precautions regarding coolant overflow, cleaning, and protecting proximity switches from coolant and chips.
Parts list
Presents a parts list for the coolant collector assembly, including part names, quantities, and reference numbers.
Attachment
Outline drawing of attachment
Illustrates the overall hydraulic circuit and mechanical arrangement for attaching the cylinder to a machine.
Production and attachment of cylinder adapter
Provides guidance on producing and attaching the cylinder adapter, including run-out measurements and setscrew use.
Production and attachment of draw pipe
Details the process for producing and attaching the draw pipe, emphasizing degreasing, adhesive application, and screw-in depth.
Attachment of cylinder
Explains the procedure for safely attaching and detaching the cylinder using lifting belts and proper mounting.
Tightening torque of the cylinder attaching bolt
Specifies the correct tightening torque for cylinder attaching bolts and cautions against using incorrect bolts.
Attachment of parts other than parts manufactured by Kitagawa Corporation
Guidance for attaching non-Kitagawa parts, including stoppers and work stops, with safety warnings.
About Hydraulic Circuit Design
Failsafe Hydraulic Circuit Design
Design hydraulic circuits for ease of operation and failsafe mechanisms to prevent accidents during blackouts.
Other information
About standards and orders
Lists the standards and directives this product is based on, including EC Machinery Directive and ISO standards.
Information about markings of product
Explains the markings found on the product, including caution notes and specification labels.
About disposal
Provides guidance on the ultimate disposal of the product according to national laws and regulations.
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