HPV55 Pilot Pump for excavators spare parts

HPV55 Pilot Pump for excavators spare parts Featured Image
  • HPV55 Pilot Pump for excavators spare parts
  • HPV55 Pilot Pump for excavators spare parts
  • HPV55 Pilot Pump for excavators spare parts

Short Description:

The HPV55 pilot pump is a factory-original high-precision hydraulic gear pilot pump exclusively matched with KAWASAKI HPV55 series main piston pumps, widely applied to 8–10 ton small and medium excavators, perfectly compatible with mainstream models such as Sany SY85, SY95, XCMG XE80, XE85, LiuGong 908, 909 and other domestic small-medium excavators.

Product Detail

Product Tags

description

The HPV55 pilot pump adopts an upgraded precision reinforced compact gear pump structure, professionally optimized for the medium-low pressure, small-medium flow, long-term medium-light load continuous operation and frequent variable-load switching characteristics of KAWASAKI HPV55 main pumps matched for 8–10 ton small-medium excavators. Different from ordinary universal pilot pumps with poor matching accuracy, unstable pressure output and easy internal leakage for HPV55 hydraulic systems, this model strictly follows original factory supporting standards, with fully standardized mounting dimensions and accurate hydraulic calibration parameters, achieving ultra-low internal leakage and linear stable flow-pressure output under long-term medium-light load operation. Equipped with high-precision wear-resistant alloy gear pair, anti-fatigue reinforced bearing assembly and high-temperature aging-resistant composite sealing system, it can maintain stable medium-low pressure pilot output without performance attenuation under long-term cyclic hydraulic impact and high-frequency compound action switching. The integrated high-rigidity compact pump body features excellent vibration resistance, dust resistance and sediment corrosion resistance, fully adapting to municipal fine construction, small earthwork and other complex medium-light construction environments.

product parameters

Product Model: HPV55 Pilot Pump
Product Type: Small-medium Flow Negative Flow Control Precision Hydraulic Gear Pilot Pump
Applicable Main Pump: KAWASAKI HPV55 Hydraulic Piston Main Pump
Applicable Equipment: 8–10 Ton Small-medium Excavators (Sany SY85/SY95, XCMG XE80/XE85, LiuGong 908/909)
Structural Feature: Low Flow Pulsation, Medium-low Pressure Constant Output, Ultra-low Internal Leakage, Compact Reinforced Wear-resistant Structure
Core Structure: High-precision Wear-resistant Alloy Gear Set, Anti-fatigue Reinforced Bearing Assembly, High-temperature Resistant Sealing System, Integrated High-rigidity Pump Body
Working Characteristics: Sensitive Medium-low Pressure Response, Stable Idle & Medium-light Load Pressure, Low Vibration & Low Noise, Wear and Aging Resistant
Core Function: Provide Standard Stable Medium-low Pilot Pressure, Drive HPV55 Main Pump Variable Adjustment and Whole Machine Medium-light Load Compound Hydraulic Actions, Ensure Smooth and Sensitive Operation
Applicable Working Conditions: Municipal Fine Construction, Small Earthwork Renovation, Garden Greening, Long-term Medium-light Load Continuous Operation

advantages

  • Professionally calibrated exclusively for KAWASAKI HPV55 negative flow hydraulic system, perfectly matching original compact installation size and medium-low pressure pilot parameters, supporting 1:1 non-destructive plug-and-play replacement for 8–10 ton small-medium excavators, no equipment modification required, 100% system matching with zero adaptation faults.
  • Adopting small-medium flow low-pulsation constant-pressure output technology exclusive for HPV55 medium-low pressure systems, it effectively stabilizes pilot pressure fluctuation and pressure drop caused by long-term medium-light load operation and frequent compound action switching, thoroughly solving common problems such as slow response, weak fine digging power and walking creeping of 8–10 ton small-medium excavators in daily construction.
  • High-precision alloy gear pair and reinforced anti-fatigue bearing structure enhance medium-light load wear resistance and operational stability, adapting to long-term continuous medium-light load cycle operation of small-medium excavators, maintaining stable pilot pressure output without performance attenuation or operational fatigue.
  • Premium anti-aging and high-temperature resistant composite sealing system resists long-term hydraulic cyclic impact and complex ambient temperature changes, completely eliminating oil leakage and system pressure loss, effectively reducing daily equipment failure rate and routine maintenance costs.

FAQ

  • Q1: What are the common failure symptoms of HPV55 pilot pump?
  • A: Typical faults include insensitive fine operation response, weak medium-light load compound digging actions, unstable idle pilot pressure, walking creeping and slight deviation, sluggish swing rotation, insensitive HPV55 main pump variable adjustment, pump body oil leakage and faint abnormal operating noise under load.
  • Q2: Why do 8–10 ton excavators have sluggish fine operation?
  • A: Long-term medium-light load cycle operation and frequent fine action switching cause minor wear of internal precision gears and bearings of the pilot pump, increased internal leakage and decreased medium-low pilot pressure, resulting in delayed main pump variable response and insufficient fine-tuning hydraulic power. Replacing the aging HPV55 pilot pump can restore original factory control performance.
  • Q3: How to maintain HPV55 pilot pump daily?
  • A: Keep the small-medium flow hydraulic system oil clean and qualified, regularly replace hydraulic oil and precision filter elements to prevent hard sediment impurities from wearing internal precision components. Regularly check the pump body for oil leakage and abnormal noise to ensure stable pilot pressure output and sensitive main pump variable operation.
  • Q4: How to extend the service life of HPV55 pilot pump?
  • A: Avoid long-term continuous overload operation and frequent sudden load impact, maintain hydraulic system cleanliness, reduce internal component wear and fatigue loss, and effectively extend the service life of the small-medium flow pilot pump.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

our warehouse

our warehouse

Pack and ship

Pack and ship


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