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RITO 39Q6-12101 39Q6-12100 Swing Gearbox R210LC-9 R210W-9 R220LC-9S Excavator Swing Reduction Gear Slewing Device Assy

Frequent start-stop rotation in excavation work places enormous stress on the slewing transmission system. Once the swing reducer begins losing torque stability, operators may notice jerky rotation, delayed positioning, or metallic gear impact during turning. These issues become especially serious in quarry and foundation projects where excavators perform nonstop loading and directional movement throughout the day.

  • Item NO.:

    39Q6-12101
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

39Q6-12101 Hydraulic Slewing Motor

 
Product Specifications

Part Number  39Q6-12101
Part Name Hydraulic Slewing Motor
Compatible Brand Hyundai
Applicable Models R210LC-9 / R210W-9 / R220LC-9S
Application Excavator
Material High-hardness alloy steel gears with reinforced cast housing
Product Color Heavy-duty black and yellow corrosion-resistant coating
Working Temperature -35°C to 120°C
Key Function Slewing torque reduction and upper structure rotation transmission
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Stronger Rotational Holding Capacity

Keeps upper-frame rotation stable during lifting, trenching, and rapid directional adjustment on uneven terrain.

Leak-Free

Optimized Planetary Reduction Layout

Improves torque multiplication efficiency while minimizing internal gear stress during continuous swing action.

Direct Fitment

Anti-Impact Transmission Structure

Designed to absorb repetitive rotational shock loads generated in rock excavation and demolition environments.

Rigorous Testing

Smooth Slewing Under High Workload

Maintains precise rotational movement during long-hour excavation without excessive vibration or overheating.

 

 

Excavator Hydraulic Part

FAQ


Q: Why does the excavator produce knocking noise during swing operation?
A: This usually indicates internal gear wear, bearing damage, or improper gear engagement inside the swing reducer assembly.
 
Q: What installation mistakes shorten gearbox lifespan most quickly?
A: Improper alignment, contaminated gear oil, and insufficient lubrication are the main causes of premature internal gear damage.
 
QHow do I confirm this reducer matches my excavator correctly?
A: Please verify the machine series, gearbox dimensions, mounting specifications, and product codes 39Q6-12101 / 39Q6-12100.
 
Q: Can the gearbox support continuous quarry excavation work?
A: Yes. The reducer is developed for high-frequency slewing movement under demanding construction and mining conditions.
 
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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