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RITO Hydraulic Pump Piston Shoe 312103 ZAX200-3 HPV118 HPV116 HMG32 HMG35 Excavator Pump Slipper for Hitachi

Suffering from gradual fluid power loss, heavy internal pump vibration, or severe system pressure drops as the excavator oil heats up? Scored slipper wear faces or loose spherical socket crimps allow high-pressure fluid to blow directly past the sliding boundaries, driving up casing thermal levels and cutting overall volumetric efficiency. Overhaul your internal rotating components using the precision-ground RITO 312103 hydraulic pump piston shoe set.

  • Item NO.:

    312103
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Rebuild shops and global machinery parts importers require durable piston slipper elements that can handle continuous high-frequency tracking without face scoring. Our premium RITO 312103 utilizes a forged high-strength steel shaft fused to a micro-plated bronze slider base to ensure excellent galling resistance under full pressure. Order this core replacement group to give your clients a reliable fix for lagging main pump performance.

312103 Piston Shoe

 
Product Specifications

Part Number  312103
Part Name Excavator Pump Slipper for Hitachi Hydraulic Pump Piston Shoe Assembly
Compatible Brand Tongmyung
Applicable Models ZAX200-3 Excavators utilizing HMG32 or HMG35 Pump Series
Application Excavator hydraulic system
Material High-Hardness Alloy Steel
Product Color Polished Steel Silver and Bright Golden Bronze
Working Temperature -30°C to 115°C
Key Function Reciprocating within the cylinder bores to compress hydraulic oil and build system volume flow
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Bimetallic Friction Sliding Interface

High-density copper alloy base layer offers exceptional anti-friction properties against the swash thrust wear plate.

Leak-Free

Firmly Crimped Joint Configuration

Strong mechanical socket heads allow wide tilting angles without developing dangerous axial play or loosening.

Direct Fitment

Integrated Pressure Balance Duct

Internal micro-channels route pressurized fluid underneath the slipper to lower friction heat and balance piston lift forces.

Rigorous Testing

 Multi-Tier Quality Options

We provide Original, OEM, and Premium Aftermarket grades, allowing distributors to meet diverse client budgets and performance needs.

 

Excavator Hydraulic Part

FAQ


Q: What internal damage occurs if an excavator continues to run with worn 312103 piston shoes?
A: The loose slippers will scratch the swash plate face and tilt inside the cylinder bores, causing rapid copper erosion and deep scoring lines that can ruin the entire pump rotating group.
 
Q: What quality control checks are needed when inspecting these replacement piston shoes during a major pump rebuild?
A: Workshop mechanics must use a micrometer to check that all piston diameters match within tight factory limits, ensuring equal oil compression across the entire cylinder group.
 
Q: Does this 312103 listing include the full set of pistons required for a total pump overhaul?
A: This listing represents the single component unit to allow flexible ordering options, but we highly recommend procurement managers order the full matched set to ensure balanced internal system tolerances.
 
Q: How does this bimetallic slipper group resist thermal scuffing when operating continuously during hot summer mining shifts?
A: The high-lead bronze composition bonded to the steel head serves as an excellent solid lubricant during brief dry-startup cycles, preventing the piston shoes from welding onto the swash plate face under extreme friction heat.
 

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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