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RITO Hydraulic Main Pump 31M9-10030 31M910030 High Pressure R55-9 R60CR-9 R55W-9 R55-7 R60-7 Excavator Piston Pumps Assemblies

Loss of tracking power and weak arm breakout forces point directly to a degrading axial piston pump. When internal barrels lose sealing tolerances, entire hydraulic networks suffer massive pressure drops, slowing operations to a crawl. Stop letting an inefficient power plant destroy the productivity of your R55-9 or R60CR-9 mini excavators.

  • Item NO.:

    31M9-10030
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Re-energize your machinery with the RITO Hydraulic Main Pump 31M9-10030. This ultra-engineered High Pressure Piston Pump Assembly delivers unrelenting flow stability and maximum pressure output, matching perfectly with R55W-9, R55-7, and R60-7 models to provide overseas distributors with the ultimate machinery revival component.

31M9-10030 Hydraulic Pump Assembly

 
Product Specifications

Part Number  31M9-10030 / 31M910030
Part Name Hydraulic Main Piston Pump Assembly
Compatible Brand Hyundai
Applicable Models R55-9, R60CR-9, R55W-9, R55-7, R60-7
Application Excavator hydraulic system
Material Premium Cast Aluminum and Alloy Steel
Product Color Technical Black
Working Temperature -25 to 115 degrees Celsius
Key Function Main Hydraulic Power and High-Pressure Fluid Generation
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Dual Axial Piston Architecture

generates high-pressure fluid streams smoothly, maximizing bucket breakout force and travel motor tracking speed.

Leak-Free

Micro-Finished Valve Plates

establish an airtight internal hydraulic seal, maintaining constant volumetric flow rates under extreme digging loads.

Direct Fitment

Heavy-Duty Cast Iron Case Housing

dampens high-frequency operational acoustics and controls vibration, extending the lifespan of internal rotating groups.

Rigorous Testing

Global Supply Tiering

We offer Original, OEM, and high-performance Aftermarket options to provide flexible procurement strategies for diverse regional markets.

 

Excavator Hydraulic Part

FAQ


Q: Fault Diagnosis: What are the warning signs that a mini excavator's main axial piston pump has suffered severe cavitation?
A: A distinct metallic rattling noise from the pump casing, persistent foaming inside the hydraulic tank, and jerky cylinder movements confirm cavitation damage on the valve plate.
 
Q: Installation: Why is "case filling" mandatory before starting an excavator with this new main pump?
A: Filling the pump case with clean oil provides immediate lubrication to the pistons, shoes, and swashplate during startup, preventing instant metal galling and structural failure.
 
Q: Compatibility: How can global purchasing managers verify this pump matches their specific compact excavator stock?
A: Check that the factory tag displays part 31M9-10030. This structural assembly is calibrated for Hyundai R55-9, R60CR-9, and R55-7 hydraulic configurations.
 
Q: Extreme Environment Performance: How does this high-pressure pump maintain system efficiency in dense, heavy clay digging?
A: Equipped with premium hardened steel pistons, the pump sustains high working pressures without pressure fade, ensuring steady breakout power when cutting through heavy materials.
 

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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