HPV102 Hydraulic Pump For ZAX200
5 week ago
Product details
HPV102 Hydraulic Pump For ZAX200
1. Product Overview
HPV102 is a swashplate tandem variable axial piston pump, serving as the core hydraulic power assembly for Hitachi ZAX200 excavator.
This double-pump integrated structure is equipped with negative flow control regulators. It outputs high-pressure hydraulic oil to drive boom, arm, bucket, slewing and travelling hydraulic actuators of the excavator. High-quality interchange aftermarket pump assembly can directly replace OEM pump for equipment maintenance and overhaul.
Model Code Explanation
- HPV：Series variable axial piston pump for Hitachi excavators
- 102：Displacement specification of hydraulic main pump
- Application: Hitachi ZAX200 Crawler Excavator
2. Main Technical Parameters
Item Specification
Pump Type Tandem Variable Displacement Axial Piston Pump
Control Mode Negative flow control
Rated Working Pressure 31.4 MPa
Maximum Peak Pressure 34.3 MPa
Rated Rotating Speed 2000 rpm
Maximum Operating Speed 2200 rpm
Rotation Direction Clockwise (viewed from shaft end)
Built-in Accessory Integral pilot gear pump
Applicable Hydraulic Oil ISO VG46 anti-wear hydraulic oil
Operating Temperature -20℃ ~ +88℃
Seal Material NBR; FKM high-temperature sealing kit optional
Approximate Weight 112 kg
Compatible Machine Hitachi ZAX200 Excavator
3. Working Principle
The engine drives the main shaft and cylinder block to rotate synchronously. The reciprocating motion of pistons forms continuous oil suction and high-pressure discharge circulation.
The negative flow regulator automatically adjusts the tilt angle of the swashplate according to the feedback signal pressure from the main control valve, changes pump displacement and adjusts output flow to match real-time load demand. Optimized power matching reduces overflow loss, lowers fuel consumption and controls hydraulic oil temperature.
The complete hydraulic system realizes all composite operations including excavation, lifting, travelling and slewing of the excavator.
4. Core Advantages
1. Specially matched for Hitachi ZAX200 excavator; mounting flange, spline shaft and oil port layout are fully consistent with original pump, supporting direct plug-and-play replacement.
2. Precisely machined internal friction pairs, low internal leakage, maintaining stable volumetric efficiency under long-term continuous heavy-load operation.
3. Mature negative flow control system, excellent power matching with engine, effectively reducing system heat generation and fuel consumption.
4. High-strength cast pump housing, outstanding shock and vibration resistance, suitable for earthwork, municipal construction and pipeline engineering.
5. Stable flow output, small flow pulsation, smooth compound movement and comfortable operating feel.
6. Reliable aftermarket replacement assembly with shorter delivery lead time compared with original genuine hydraulic pump.
5. Application Range
Main hydraulic pump for Hitachi medium crawler excavator:
Hitachi ZAX200
Widely used in earthmoving, municipal construction, pipeline laying, landscaping and general construction projects.
6. Common Faults & Replacement Suggestion
Typical failures: Insufficient digging force, slow compound movements, excessive hydraulic oil temperature, abnormal knocking noise, shaft seal leakage.
Thoroughly flush all hydraulic pipelines and replace all hydraulic filter elements before installation. Strictly ensure hydraulic oil cleanliness to prevent impurities from scratching cylinder block, piston shoes and valve plate. Replace complete pump assembly if serious internal abrasion occurs.
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