Belparts JMF43 DH80 170303-00039 swing drive motor for doosan hydraulic travel motor

The excavator swing motor is one of the core components in the hydraulic system of an excavator, primarily responsible for driving the upper structure (including the cab, boom, arm, etc.) to rotate 360 degrees. The performance of the swing motor directly affects the operational flexibility and work efficiency of the excavator.

Technical Parameters:

1. Hydraulic Drive Principle

The swing motor is driven by high-pressure hydraulic oil provided by the hydraulic system. When the operator manipulates the control lever, the hydraulic pump delivers high-pressure oil to the inlet of the swing motor, pushing the internal rotor to rotate. The rotation of the rotor is transmitted through the reduction mechanism to the swing bearing, thereby driving the upper structure of the excavator to rotate.

2. Structural Composition

The swing motor typically consists of the following main parts:

• Hydraulic Motor: Converts hydraulic energy into mechanical energy, driving the rotor to rotate.

• Reduction Mechanism: Reduces speed and increases torque, ensuring smooth and powerful swing motion.

• Swing Bearing: Connects the upper structure and the lower chassis, bearing the load during rotation.

• Brake System: Prevents the upper structure from continuing to rotate due to inertia when the operation stops, ensuring safety.

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3. Working Characteristics

• High Efficiency: The swing motor adopts advanced hydraulic technology to ensure high torque at low speeds, adapting to various working conditions.

• Smoothness: The precisely designed reduction mechanism and hydraulic control system ensure smooth and shock-free swing motion, reducing mechanical wear.

• Reliability: High-strength materials and strict manufacturing processes ensure that the swing motor can work stably for a long time even in harsh environments.

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List of spare parts

GZ Yuexiang Engineering Machinery Co., Ltd.

GZ Yuexiang Engineering Machinery Co., Ltd, is a foreign trade company integrating development, sales, procurement, warehousing, transportation and service. Founded in September 2013, we have more than twelve years of experience in machinery trade.

Our main products are Excavator Hydraulic Spare Parts, Hydraulic Main Pump, Swing Motor, Travel Motor, Final Drive Ass'y, Swing Device Ass'y, Swing Gearbox, Travel Gearbox, Gears, Regulators, Relief Valve, Fan Motor and other hydraulic items with genuine and aftermarket quality. Until now, our products have been exported to more than 198 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with our own brand "Belparts", which is highly praised by foreign customers and enjoys a high reputation.

In the future, to practice our company culture “DO BETTER FOR TOMORROW ”, we will strive to learn more professional knowledge about machinery parts and increase our procurement and sales experience to provide customers with better products and services! What’s more, we will devote to develop a more broad business space together base on long-term, friendly, mutually beneficial and win-win business relations.