Hitachi ZAX30 SWE17 SWE18 SWE25 B0250-21002 Swing Motor For MSG-21P-11E-2

Core Performance Indicators of the Slewing Motor

The performance of the slewing motor directly impacts the excavator's operational capabilities. Key evaluation parameters include:

• Rated Torque: Typically 1000~5000 N·m, determining the rotational driving force.

• Maximum Working Pressure: Usually 30~35 MPa, affecting the motor's power density.

• Displacement: Measured in mL/r; higher displacement increases torque but reduces speed.

• Slew Speed: Normally 5~12 rpm; excessive speed causes inertial shock, while insufficient speed reduces efficiency.

• To improve the energy efficiency and reliability of slewing motors, modern excavators employ the following advanced technologies:

• Variable Displacement Control: Uses electro-proportional valves to adjust the swash plate angle, enabling automatic switching between high and low speeds for energy savings and power.

• Lightweight Design: Utilizes high-strength aluminum alloy housings to reduce overall weight while maintaining structural integrity.

• Smart Braking System: Integrates ECU control to achieve soft braking, minimizing hydraulic shock during stops.

• Integrated Hydraulic Circuit: Incorporates anti-shock valves and make-up valves internally, reducing external piping and failure rates.

Support and Services:

Our Excavator Swing Motor is a high-quality product designed for maximum performance and durability. Our team of experienced technicians is available to provide technical support and services to ensure that your excavator operates at peak efficiency. Our services include installation assistance, troubleshooting, and repair. We also offer maintenance and inspection services to help prevent issues before they occur. Our goal is to provide you with the support you need to keep your excavator running smoothly and efficiently.