HPV75 Hydraulic Pump for Excavator spare parts

HPV75 Hydraulic Pump for Excavator spare parts Featured Image
  • HPV75 Hydraulic Pump for Excavator spare parts
  • HPV75 Hydraulic Pump for Excavator spare parts
  • HPV75 Hydraulic Pump for Excavator spare parts
  • HPV75 Hydraulic Pump for Excavator spare parts
  • HPV75 Hydraulic Pump for Excavator spare parts

Short Description:

HPV75 hydraulic pump spare parts are high‑precision aftermarket repair components specially matched for HPV75 closed‑loop variable piston pump.

Product Detail

Product Tags

description

HPV75 pump spare parts mainly serve overhaul and partial‑repair scenarios of HPV75 closed‑loop piston pump. The rotating‑group components bear high‑pressure impact, high‑speed friction and frequent load fluctuation during long‑time operation, which are the main failure sources of the pump unit. The cylinder block undergoes integral quenching‑tempering treatment together with ultra‑precision mirror grinding to guarantee stable clearance match with valve‑plate friction pair. Piston‑shoe assemblies adopt anti‑wear alloy‑cladding process, lowering friction coefficient under high‑pressure continuous‑running condition. The valve‑plate and retainer‑plate are processed with flat‑surface high‑precision lapping, ensuring good contact uniformity and suppressing internal‑leakage growth. The high‑strength center‑shaft improves torsion‑resistance performance under frequent variable‑load impact. Complete‑set seal kits adopt high‑temperature‑resistant composite‑rubber material, adapting to high‑oil‑temperature working environment of closed‑loop system. All spare‑parts are inspected by dimensional verification, flatness detection and pressure‑simulation screening before delivery. Customers can purchase separate single‑piece parts or full rotating‑group repair kits according to actual wear condition, realizing flexible maintenance matching for on‑site repair.

product parameters

Product Model: HPV75 Hydraulic Pump Spare Parts
Product Type: Pump Rotating‑Group Wearing Parts & Repair Components
Applicable Equipment: Machinery equipped with HPV75 closed‑loop variable piston pump, wheel excavators, loaders, special‑purpose construction machinery
Included Components: Cylinder block, piston‑shoe assemblies, valve plate, retainer plate, center shaft, seal kit, servo‑control spool, charge‑pump gear etc.
Core Material: High‑strength alloy steel, anti‑wear copper‑alloy cladding, high‑temperature resistant composite seal material
Processing Craft: Integral heat‑treatment, ultra‑precision mirror grinding, flat‑surface lapping, dimensional tolerance control following OEM specification
Core Functions: Replace worn‑out components, restore pump volumetric efficiency, rebuild pressure‑output capacity, eliminate abnormal noise and oil‑leakage failure.
Applicable Scenarios: On‑site pump overhaul, partial‑damage repair, worn‑friction‑pair replacement, cost‑saving pump performance restoration.
Matching Parts: Compatible with original HPV75 pump housing, servo‑control mechanism and charge‑pump assembly.

advantages

  • Strict OEM‑Equivalent Dimension Standard, Good Interchangeability: Every spare part follows original dimension, flatness and tolerance requirement. No modification needed during overhaul, convenient for maintenance‑shop assembly.
  • High‑Reliability Heat‑Treatment & Grinding Process, Stable Friction‑Pair Performance: Alloy‑steel substrate plus anti‑wear cladding and mirror‑surface lapping reduce friction loss, effectively slow down secondary wear after repair.
  • Flexible Procurement Mode, Reduce Overall Maintenance Cost: Support separate‑part purchase for partial‑damage condition; full rotating‑group kits are available for complete overhaul. Avoid unnecessary expense of whole‑pump replacement.
  • Complete‑Range Component Coverage, Meet Various Repair Demands: Cover rotating‑group core wearing parts as well as control spool, seal kit and auxiliary wearing parts, solving most common failure types of HPV75 pump unit.
  • Pre‑Delivery Multi‑Item Inspection, Stable Consistency: Each batch goes through dimension check, flatness test and hardness sampling inspection, lowering failure risk after on‑site installation.
  • Fit Closed‑Loop Heavy‑Duty Working Condition, Long Service Life After Repair: Material formula optimized for high‑pressure closed‑circuit characteristics, maintains good volumetric efficiency under long‑time high‑temperature operation.

FAQ

  • Q1: What failures can HPV75 pump spare‑parts solve?
  • A: It repairs failures caused by friction‑pair wear: large internal leakage, insufficient output pressure, slow response, abnormal running noise, oil seepage and volumetric efficiency drop of HPV75 closed‑loop pump.
  • Q2: Should I buy single‑piece parts or full rotating‑group repair kit?
  • A: If only individual component is damaged, select single‑piece spare‑part. For long‑time heavy‑duty worn pump, full rotating‑group kit is recommended to prevent successive damage of remaining old components.
  • Q3: Any special requirement for overhaul assembly?
  • A: Assembly must be finished by professional hydraulic technicians. Strictly clean all pump‑body passages; control friction‑pair clearance reasonably; replace all aging seals simultaneously; test pressure after assembly.
  • Q4: Which host devices are these spare‑parts suitable for?
  • A: For engineering machinery equipped with HPV75 closed‑loop variable piston pump, mainly wheel excavators, loaders and special‑purpose construction machinery with hydrostatic transmission.
  • Q5: What measures to extend service‑life after repair?
  • A: Keep hydraulic‑oil cleanliness, replace filter elements on schedule; avoid long‑term over‑pressure operation; monitor oil temperature of closed‑loop circuit, prevent overheating deterioration of hydraulic oil.

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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