The Tokyo Keiki CR-08-4P4-30-D-JA-J is a CR Series internal gear hydraulic motor designed for low-speed, high-torque rotary drive applications. It converts hydraulic pressure and oil flow into smooth mechanical rotation, making it suitable for hydraulic systems that require strong starting torque, controlled speed, and stable output under industrial working conditions.

This model has a displacement of 123cm³/rev, rated working pressure of 21MPa, maximum working pressure of 28MPa, rated torque of 365N·m, and maximum torque of 490N·m. With a rated speed of 405min⁻¹ and approximately 15.7kg body weight, the CR-08-4P4-30-D-JA-J is suitable for medium-load hydraulic drive systems where compact installation and reliable torque transmission are required.

The model code provides important configuration information. The “4” indicates 4-bolt square flange mounting, the “P” indicates threaded ports in the motor body, the second “4” indicates a 1-1/4 inch parallel keyed shaft, and the “D” indicates an external drain port. This configuration is useful for hydraulic systems that require secure flange mounting, strong shaft transmission, direct threaded pipe connection, and separate drain line management.

The CR-08-4P4-30-D-JA-J can be used in conveyor drives, winches, material handling equipment, industrial hydraulic machinery, mobile equipment, agricultural machinery, marine deck equipment, and production line auxiliary systems. It is also suitable for hydraulic motor replacement, machine repair, and spare parts maintenance projects.

For replacement applications, the complete model number CR-08-4P4-30-D-JA-J should be checked carefully. Similar CR Series motors may have different displacement codes, mounting types, porting styles, shaft ends, drain configurations, rotation directions, and seal options. Before ordering, please confirm the original motor label, shaft diameter, mounting flange, port thread, hydraulic pressure, flow requirement, drain line arrangement, and machine installation space.

Dengfeng supplies Tokyo Keiki hydraulic motors, hydraulic pumps, valves, servo drives, PLC modules, industrial control components, and automation spare parts for machine repair and production line maintenance. Before shipment, we can check the model label, shaft condition, port condition, mounting surface, appearance, and packaging according to your request.

Key Features

• Tokyo Keiki CR-08-4P4-30-D-JA-J CR Series hydraulic motor
• High torque low speed internal gear motor design
• 123cm³/rev displacement
• 21MPa rated working pressure and 28MPa maximum working pressure
• 365N·m rated torque and 490N·m maximum torque
• 405min⁻¹ rated speed
• Approx. 15.7kg body weight
• 4-bolt square flange mounting
• Threaded ports in body
• 1-1/4 inch parallel keyed shaft
• External drain port configuration
• Suitable for hydraulic drive replacement and maintenance projects

Typical Applications

The Tokyo Keiki CR-08-4P4-30-D-JA-J hydraulic motor can be used in:

• Conveyor drive systems
• Winches and lifting equipment
• Material handling machinery
• Industrial hydraulic drive systems
• Mobile hydraulic equipment
• Agricultural machinery
• Construction machinery auxiliary drives
• Marine deck equipment
• Production line machinery
• Hydraulic motor replacement and repair projects

FAQ

Q1: What is Tokyo Keiki CR-08-4P4-30-D-JA-J?
A1: It is a CR Series high torque low speed internal gear hydraulic motor used for hydraulic rotary drive applications.

Q2: What is the displacement of this motor?
A2: The displacement is 123cm³/rev.

Q3: What is the rated working pressure?
A3: The rated working pressure is 21MPa, with a maximum working pressure of 28MPa.

Q4: What torque can this motor provide?
A4: The rated torque is 365N·m, and the maximum torque is 490N·m.

Q5: What is the rated speed of CR-08-4P4-30-D-JA-J?
A5: The rated speed is 405min⁻¹.

Q6: What mounting type does this model use?
A6: The first “4” in the model code indicates 4-bolt square flange mounting.

Q7: What does the “P” in the model mean?
A7: The “P” indicates threaded ports in the motor body.

Q8: What shaft type does this model use?
A8: The second “4” in the model code indicates a 1-1/4 inch parallel keyed shaft.

Q9: What does the “D” mean in this model?
A9: The “D” indicates an external drain port configuration. Please confirm the drain line arrangement before replacement.

Q10: Can this motor be used as a replacement part?
A10: Yes. It is suitable for hydraulic motor replacement, but the complete model number, shaft type, mounting flange, porting style, drain configuration, and hydraulic system requirements must be confirmed before ordering.

Q11: What should I provide before purchasing?
A11: Please provide photos of the original motor label, shaft end, mounting surface, hydraulic ports, drain port, and machine installation position. This helps confirm compatibility.