TOKYO KEIKI CR-07-5P12-30-JA-J The Most Versatile and Durable HYDRAULIC MOTOR for Industrial Mobile and Marine Applications

TOKYO KEIKI CR-07-5P12-30-JA-J Hydraulic Motor

TOKYO KEIKI INC., with its established heritage as TOKIMEC, represents Japanese engineering excellence in the field of high-precision hydraulic components. For decades, the company has been at the forefront of developing robust and efficient fluid power solutions for demanding industrial, mobile, and marine applications. The CR Series of internally engaging gear-type hydraulic motors stands as a testament to this legacy, specifically engineered to deliver exceptional low-speed, high-torque (LSHT) performance in some of the world's most challenging operational environments.

The CR-07-5P12-30-JA-J model is a sophisticated variant within this esteemed series, designed for applications where reliability, compact power, and specific configuration compatibility are paramount. This motor incorporates a planetary gear mechanism with a precision cycloid curve, a design philosophy that prioritizes high power density, operational smoothness, and extended service life. This technical overview provides a detailed examination of the CR-07-5P12-30-JA-J, delving into its design specifications, performance characteristics, and ideal applications to serve as a definitive resource for engineers, system integrators, and procurement specialists.

Advanced Design Philosophy and Core Features

The CR-07-5P12-30-JA-J is built upon a foundation of durability, efficiency, and versatile integration. Its design incorporates several critical features that distinguish it within the CR Series and the broader hydraulic motor market.

• Optimized Cycloid Gear Mechanism: The heart of this motor is its advanced internally engaging planetary gear system. The use of a precision-engineered cycloid curve in the gear profile ensures highly efficient power transmission with minimal internal friction and wear. This results in smoother operation, reduced heat generation, and a significantly longer operational lifespan compared to conventional hydraulic motors.

• Robust Construction for Demanding Environments: Every component, from the high-strength housing to the hardened internal gears, is selected and manufactured to withstand continuous high-pressure operation, shock loads, and cyclic stresses. The motor's inherent structural integrity makes it exceptionally reliable for use in harsh conditions, such as construction sites, offshore marine applications, and heavy industrial manufacturing.

• Enhanced Sealing and Fluid Compatibility: The "JA-J" suffix in the model number indicates the use of specific sealing materials and configurations. This design ensures superior compatibility with standard petroleum-based hydraulic fluids and enhances resistance to environmental contaminants, dust, and moisture, thereby reducing the risk of leaks and internal damage.

• Low-Speed, High-Torque Performance: True to the CR Series' core competency, this motor generates substantial torque directly at low rotational speeds. This LSHT characteristic eliminates the need for external speed-reduction gearboxes, simplifying system design, reducing overall weight and cost, and improving overall drive train efficiency.

Decoding the Model Number: CR-07-5P12-30-JA-J

The model number provides a detailed blueprint of the motor's specific configuration:

• CR-07: Denotes the motor series and frame size, with a nominal displacement of 106 cm³/rev.

• 5P12: This complex suffix specifies the mounting style and port configuration. The "5" indicates a bolt-on rectangular flange mounting. "P12" specifies a particular port type and size, in this case, likely involving flange connections as per the G-type piping method, ensuring a secure, leak-resistant high-pressure connection.

• 30: This refers to the shaft specification. It specifies a parallel shaft with a square key (1-1/4 inch), designed to handle high torque transmission efficiently.

• JA-J: This code confirms the use of specialized seals and potentially standard spool valves, optimized for reliability and longevity with standard hydraulic oils.

Technical Specifications and Performance Data

The following table consolidates the fundamental technical specifications for the CR-07-5P12-30-JA-J hydraulic motor, based on its core CR-07 design and the interpreted configuration from its model number.

Technical Specifications of CR-07-5P12-30-JA-J Hydraulic Motor

• Performance Analysis: With a displacement of 106 cm³/rev, the motor is capable of handling significant fluid volume per revolution, directly translating into high torque output. Its ability to operate continuously at a rated pressure of 21 MPa and withstand peak loads up to 28 MPa underscores its robustness for heavy-duty applications. The motor delivers optimal performance at a rated speed of 465 rpm, making it ideal for direct drive systems requiring powerful, controlled rotational force.

Industrial Applications and Use Cases

The combination of high torque, compact flange mounting, and reliable performance makes the CR-07-5P12-30-JA-J exceptionally versatile across multiple sectors.

• Mobile Construction Equipment: This motor is ideally suited for driving the tracks of compact excavators, the winches on mobile cranes, and the augers of drilling rigs. Its flange mounting facilitates easy integration into tight spaces within machinery frames.

• Specialized Industrial Machinery: It is an excellent choice for applications such as roller drives in conveyor systems, mixers in industrial processing plants, and positioning devices in automation, where consistent torque and reliable mounting are critical.

• Marine and Deck Machinery: The motor's robust construction and effective sealing make it a dependable power source for winches, windlasses, and capstans on various vessels, where exposure to corrosive saltwater environments is a constant challenge.

• Material Handling Systems: Its performance characteristics are well-matched for drives in heavy-duty forklifts, palletizers, and other logistics equipment that require precise, powerful movement of heavy loads.

Operational Advantages and Key Benefits

1. Superior Power Density: The cycloid gear mechanism delivers high torque from a compact and relatively lightweight package, allowing machine designers to maximize performance without sacrificing valuable space.

2. Exceptional Reliability and Longevity: The combination of robust construction, precision machining, and high-quality seals results in a motor with a long service life and minimal maintenance requirements, reducing total cost of ownership.

3. Simplified System Integration: The defined flange mounting (5-type) and specific shaft configuration (30) allow for straightforward and secure mechanical integration, saving time and effort during assembly and maintenance.

4. Operational Efficiency: The efficient internal design minimizes energy losses through friction and internal leakage, leading to lower operating temperatures and reduced overall energy consumption for the hydraulic system.

Conclusion

The TOKYO KEIKI CR-07-5P12-30-JA-J hydraulic motor is a precision-engineered component that embodies the high standards of the CR Series. Its specific configuration, offering a high-torque output, a convenient flange mounting style, and a robust shaft design, makes it a superior and highly adaptable solution for a wide spectrum of demanding industrial applications. By selecting this motor, engineers and equipment manufacturers can achieve enhanced operational reliability, improved system efficiency, and durable performance in even the most challenging conditions, thereby ensuring the long-term productivity and success of their machinery.