Belparts Excavator Parts Swing Motor MSG-21P-11E-2 ZAX30 SWE17 SWE18 SWE25 B0250-21002

Typical Structure of the Slewing Motor

Modern excavator slewing motors typically adopt an integrated design of axial piston motor + planetary gear reducer to increase torque output and reduce speed. Its core components include:

1. Cylinder Block: Contains multiple precision-machined piston bores where pistons reciprocate under high-pressure oil.

2. Swash Plate: By adjusting the swash plate angle, the motor's displacement can be changed, enabling variable control.

3. Port Plate: Distributes high-pressure and low-pressure oil to ensure continuous motor rotation.

4. Output Shaft: Connects to the reduction gear, ultimately driving the slewing ring gear.

Key Maintenance Points for the Slewing Motor

To ensure long-term stable operation of the slewing motor, the following maintenance should be performed regularly:

1. 1. Hydraulic Oil Management: Keep the oil clean, replace filters periodically, and prevent contaminants from damaging precision components.

   2. Seal Inspection: Check for oil leaks in the motor shaft seals and end covers to avoid insufficient lubrication due to hydraulic oil leakage.

   3. Brake Testing: Regularly verify if the brake releases properly to prevent overheating caused by brake drag.

   4. Abnormal Noise Monitoring: If unusual noises occur during rotation, it may indicate bearing or gear wear, requiring timely disassembly and inspection.

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.