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RITO 31N8-12020 Slew Motor 31N812020 Hydraulic Swing Motor Assy R290-7 R305-7 R320-7 Excavator Rotary Drive Motor Unit M2X170-CH

Upper structure rotation depends on stable torque delivery from the swing drive system, especially in high-load excavation cycles. The RITO 31N8-12020 / 31N812020 slew motor assembly is engineered for R290-7 R305-7 R320-7 excavators, providing hydraulic-driven rotary power through the M2X170-CH platform to ensure controlled and consistent swing movement.

  • Item NO.:

    31N8-12020
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

31N8-12020 Swing Motor

 
Product Specifications

Part Number  31N8-12020
Part Name Swing Motor
Compatible Brand Hyundai
Applicable Models R290-7 R305-7 R320-7
Application Excavator
Material Alloy Steel Housing + Precision Internal Components
Product Color Industrial Grey / Black
Working Temperature -40°C to 140°C
Key Function Convert hydraulic pressure into swing rotation torque
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High-Torque Rotary Drive Output

Delivers strong and stable swing force for heavy-duty upper structure movement.

Leak-Free

Integrated Hydraulic Motor Structure

Combines motor and drive system for efficient and compact swing transmission.

Direct Fitment

Improved Rotation Stability Under Load

Reduces swing hesitation and supports smooth directional transitions.

Rigorous Testing

Designed for R-7 Excavator Platforms

Compatible with R290-7 R305-7 R320-7 swing systems.

 

Excavator Hydraulic Part

FAQ


Q: What are common symptoms of swing motor wear?
A: Weak rotation power, oil leakage, uneven swing speed, or abnormal mechanical noise.
 
Q: What affects swing motor performance over time?
A: Internal gear wear, hydraulic contamination, and reduced sealing efficiency.
 
QWhat should be checked before replacement?
A: Hydraulic oil condition, mounting alignment, and coupling interface condition.
 
Q: Can this motor restore swing efficiency?
A: Yes, proper installation can significantly improve rotation smoothness and response speed.
 
Q: What quality options are available?

A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.

 

Q:Why Choose RITO?
A:Listed Factory
   Stable&Reliable Quality
   OEM Factory for Chinese Top Excavator Brands
   Supplier to Fortune 500 Companies

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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