Kobelco M5X130 SK200-8 SK210-8 Excavator Swing Motor For Excavator Spare Parts

Kobelco M5X130 SK200-8 SK210-8 Excavator Swing Motor for excavator spare parts

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.

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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• R210-7	31N6-10210
  EC210	14552686
  CAT325	191-2693
  PC220-7	206-26-00400
  EC460	14521444
  R220-9	39Q6-11100
  DX340	K1007543A
  PC200-8	706-7G-01170
  CAT330D	266-7922
  EC220D	14552686
  EC240	14542163
  EC360B	14619955
  EC360B	14630401
  EC360B	14635750
  EC380D	14680015
  EC140	14524188

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