CR-04-5G4-30-D-JA-J | TOKYO KEIKI | Hydraulic Motor Ideal for Heavy-Duty Construction Agriculture and Industrial Machinery

Product Overview: TOKYO KEKI Hydraulic Motor Model CR-04-5G4-30-D-JA-J | A Guide to Advanced Gerotor Technology

Meta Description: Technical guide for the TOKYO KEIKI CR-04-5G4-30-D-JA-J hydraulic motor. Explore its high-torque design, keyed JA construction, side port (D-code) configuration, and ideal use in heavy-duty construction, agriculture, and industrial machinery.

Executive Summary: Engineering Power and Reliability for Demanding Applications

In the procurement of critical hydraulic components, the balance between raw power, structural integrity, and practical installation defines the long-term value of a component. This document provides a detailed technical analysis of the TOKYO KEIKI Hydraulic Motor, model CR-04-5G4-30-D-JA-J, a motor engineered for the most demanding high-torque applications. Representing a high-capacity variant within the esteemed CR-Series, this model combines a significant displacement with robust construction features and a user-friendly design. For procurement specialists sourcing for heavy-duty mobile and industrial machinery, this motor offers a reliable, high-performance solution designed to minimize downtime and maximize operational uptime. This guide will deconstruct its model number, present full technical specifications, and highlight the distinct advantages that set it apart.

Model Number Analysis: Decoding CR-04-5G4-30-D-JA-J

Precise component identification is fundamental to successful procurement. The model number CR-04-5G4-30-D-JA-J provides a complete blueprint of the motor's identity and capabilities:

• CR: The series designation for TOKYO KEIKI's Gerotor (Orbit) type hydraulic motors, known for exceptional low-speed, high-torque performance.

• 04: The frame size, indicating a compact and standardized physical housing, ensuring compatibility with existing CR-04 series mounting configurations.

• 5G4: This code is central to the motor's performance profile, indicating its displacement. In the TOKYO KEIKI nomenclature, this corresponds to a substantial 56.0 cm³/rev. This large displacement is the direct source of its high torque output.

• 30: Specifies the output shaft and mounting flange, confirming a keyed shaft and a standardized SAE 2-bolt flange for reliable power transmission and easy integration.

• D: A critical design feature indicating a side port configuration. This means the hydraulic ports are located on the side of the motor body, offering significant advantages in tight installation spaces and simplifying hose routing.

• JA: Denotes the keyed internal gerotor and shaft assembly. This is a hallmark of durability, ensuring all torque is transmitted through a positive mechanical lock, which is essential for withstanding the high shock loads typical in heavy-duty applications.

• J: Designates the hydraulic port thread as JIS (Japanese Industrial Standards) taper, a crucial detail for ensuring proper fitting selection and leak-free system integration.

This detailed breakdown confirms that the CR-04-5G4-30-D-JA-J is a high-displacement, robustly constructed motor with practical installation features.

Comprehensive Technical Specifications Table

The following table provides a consolidated view of the primary technical data for the CR-04-5G4-30-D-JA-J, serving as a key reference for system design and validation.

Key Features and Strategic Procurement Benefits

The CR-04-5G4-30-D-JA-J is designed to deliver specific performance and reliability advantages that translate directly into operational value and reduced total cost of ownership.

1. Maximum Torque Density in its Class: With a displacement of 56.0 cm³/rev, this motor represents one of the highest torque outputs available in the CR-04 frame size. It delivers immense rotational force, making it suitable for driving the most heavily loaded systems without requiring a larger, more expensive motor frame.

2. Uncompromising Durability with Keyed Internals (JA): The JA construction is a critical feature for a motor of this capacity. The keyed connection between the gerotor set and the shaft is engineered to handle extreme shock loads and high cyclic pressures that would cause wear or failure in lesser designs. This robust internal architecture directly correlates to extended service intervals and superior machine availability.

3. Side Port Configuration for Enhanced Installability (D-code): The side-mounted hydraulic ports offer a significant practical advantage in machine design. This configuration allows for cleaner and more direct hose routing in space-constrained environments, reduces stress on hose ends, and can significantly simplify the assembly and maintenance processes.

4. Superior Low-Speed Operation and High Starting Torque: The fundamental gerotor design ensures smooth and powerful rotation from startup, providing full torque at 0 RPM. This characteristic is indispensable for applications like heavy-duty winching, auger drilling, and conveyor starting, where breaking away a high inertial load is required.

5. Proven High-Pressure Capability: The motor's 210 bar maximum operating pressure rating confirms its suitability for integration into modern high-pressure hydraulic systems, ensuring reliable performance and structural integrity under continuous heavy loads.

Ideal Applications and Industry Use Cases

Procurement teams will find this motor specified for applications where high torque and unwavering reliability are non-negotiable. Key industries include:

• Heavy Construction Equipment: Final drive motors for compact track loaders and mini-excavators, swing drives, and powerful auger drives for foundation work.

• Demanding Agricultural Applications: Drive systems for large fertilizer spreaders, main mixers in industrial feed wagons, and conveyor drives in high-capacity harvesters.

• Industrial Material Handling: Powerful winches for hoisting and pulling, drive units for heavy-duty AGVs (Automated Guided Vehicles), and rotation mechanisms for large industrial manipulators.

• Forestry and Recycling: Primary feed roller drives in high-volume woodchippers and shredders.

Conclusion: A High-Performance Hydraulic Drive Solution

The TOKYO KEIKI Hydraulic Motor model CR-04-5G4-30-D-JA-J is a premium component engineered for applications where failure is not an option. Its high-torque output, combined with the superior durability of the JA construction and the practical benefits of the side-port design, makes it an outstanding choice for procurement professionals seeking to optimize machine performance and reliability. By specifying this model, you are investing in a component that delivers maximum power and longevity, thereby protecting the value and productivity of the end equipment. For further technical data sheets, 2D/3D CAD models, or application-specific support, please contact our engineering team to assist with your procurement and integration needs.