M5X130 Kawasaki Swing Motor 129.2cm³ 324bar Excavator

Product Overview

The Kawasaki M5X130CHB is a Kawasaki Heavy Industries M5X series swash-plate fixed-displacement axial piston hydraulic motor specifically designed for excavator swing applications. It integrates a parking brake, relief valves, and make-up valves in a compact package that can be directly connected to the reduction gear ring. With a displacement of 129.2 cm³/rev, rated pressure of 32.4 MPa, maximum pressure of 39.2 MPa, and maximum speed of 1850 rpm, it delivers smooth starting and reliable braking. Our M5X130CHB-10A-10A-260 and related models, including M5X130 and M5X180, are manufactured to original technical specifications, offering 100% interchangeability (flange, shaft end, ports, and brake interfaces fully match OEM) and 100% simulated-duty testing. They provide high reliability under high-pressure swing duty as cost-effective direct replacements for genuine Kawasaki motors.

Technical Specifications 

• Model: M5X130CHB-10A-10A-260 (series also available in M5X130, M5X180 and related configurations)
• Displacement: 129.2 cm³/rev (M5X180: 180.1 cm³/rev)
• Rated pressure: 32.4 MPa (324 bar)
• Maximum pressure: 39.2 MPa (392 bar)
• Maximum speed: 1850 rpm (M5X180: approx. 1680 rpm)
• Rated output torque: approx. 670 Nm (M5X180: approx. 932 Nm)
• Control: Fixed displacement, bidirectional, with built-in parking brake
• Brake release pressure: approx. 3.4 MPa
• Approx. weight: 47 kg (M5X180: approx. 61 kg)
• Design: Swash-plate axial piston fixed-displacement motor optimized for swing applications with integrated valving

Key Technical Advantages

1. Precision swash-plate axial piston design and high-accuracy machining deliver superior volumetric and mechanical efficiency, smooth starting torque, and accurate swing positioning.
2. Integrated parking brake, relief, and make-up valves with compact axial length allow direct connection to reduction gears, saving space while providing high power density.
3. High-quality bearings and sealing systems support continuous high-pressure operation and frequent start/stop cycles with low noise and long service life.
4. Full dimensional and performance interchangeability plus rigorous simulated-duty testing guarantee drop-in replacement of original Kawasaki units, minimizing downtime and lifecycle costs.

Application Areas

Specifically engineered for the swing mechanisms of medium to large hydraulic excavators. Typical machines include models from Volvo, Hitachi, Caterpillar, Kobelco, and other brands. Also suitable for other high-starting-torque positioning or rotary drive systems requiring reliable braking.

Expert Maintenance Tips

• Verify exact match of mounting flange, shaft end, and brake ports before installation; ensure the output shaft is not subjected to additional radial or axial loads.
• Maintain hydraulic fluid cleanliness to recommended standards using anti-wear hydraulic oil; regularly check brake release pressure and response.
• Monitor swing speed, pressure, and temperature during commissioning; avoid prolonged over-pressure or over-speed operation.
• Use matching filter elements and seals during service; record operating parameters to detect early decline in efficiency or braking performance.