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Help CenterHitachi EX200 EX220 EX300 EX330 Hydraulic Main Pump - Heavy Duty Design for Long Service Life
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As a leading manufacturer based in Xuzhou, Jiangsu, China, Xuzhou Guozi Intelligent Technology Co., Ltd. specializes in delivering high-performance hydraulic solutions for construction machinery. Our Hitachi Hydraulic Main Pump series represents the pinnacle of reliability engineered for demanding excavator operations.
This heavy-duty hydraulic main pump is designed to provide exceptional service life while maintaining peak performance in the toughest working conditions. Engineered with precision tolerances and robust materials, it ensures consistent hydraulic power delivery for Hitachi EX200, EX220, EX300, and EX330 excavators.
Core Technical Advantages:
Enhanced Durability: Forged from high-strength alloy components resistant to wear and pressure fluctuations
Precision Engineering: Optimized internal clearances maintain efficiency throughout operational lifespan
Flow Consistency: Maintains stable hydraulic pressure (±1.5% variance) under variable loads
Thermal Management: Specialized porting design reduces fluid temperature by up to 12% compared to standard units
Performance Specifications:
Excavator Hydraulic Pump
The hydraulic pump serves as the core power unit of an excavator, converting the mechanical energy from the engine into hydraulic energy to drive all the working mechanisms, including the boom, arm, bucket, and rotation system.
Common types applied in excavators include gear pumps, vane pumps, and piston pumps, among which variable displacement piston pumps are widely favored for their high efficiency, strong load adaptability, and excellent energy-saving performance.
Key performance parameters cover rated pressure, displacement, speed range, and volumetric efficiency. Advanced hydraulic pumps are integrated with load-sensing and pressure-compensated technologies, which can automatically adjust the output flow according to the actual working conditions, effectively reducing energy consumption and improving operation stability.
The hydraulic pump is connected to the engine via a coupling, and its working oil is supplied by the hydraulic oil tank, with the oil cleanliness strictly controlled to ensure long-term reliable operation. Regular maintenance, such as oil replacement, filter cleaning, and seal inspection, is essential to prevent failures like oil leakage, pressure drop, and abnormal noise, thus extending the service life of the entire hydraulic system of the excavator.
Specification :
Part Name： |
Hydraulic pump |
||
Part Model： |
10286642 5616530 R902208862 |
Feature |
Durable and efficient High quality |
Type: |
Original and replacement or OEM |
Application |
Excavator or Loader or Bullzoder or Grader or Truck |
Delivery Time: |
2-10 Days |
MOQ |
1 Sets |
Warranty: |
6 Months-18 Months |
Transportation method: |
Federal UPS DHL Ocean Freight |
Operational Benefits:
Reduces downtime by 30% through reinforced shaft and bearing design
Precision-machined gears minimize energy loss (94% volumetric efficiency)
Interchangeable mounting pattern simplifies replacement procedures
Special surface treatment on swashplate reduces sticking tendency
Backed by Xuzhou Guozi's manufacturing expertise in Jiangsu, China, this pump undergoes rigorous quality validation including 72-hour continuous load testing. Our technical support team provides installation guidance and troubleshooting assistance to ensure seamless integration with your equipment.
FAQ:
Q1: Is this pump compatible with both older and newer Hitachi excavator models?
A: Yes, it's engineered to meet original specifications for EX200 through EX330 series with optional mounting adapters available.
Q2: What's the expected service interval under normal operation?
A: When maintained with recommended hydraulic fluids, expect 8,000-10,000 operating hours before major service.
Q3: Does it include installation hardware?
A: Mounting bolts and seals are included; additional hydraulic lines can be sourced separately.
Q4: Can you provide performance test reports?
A: Certified test data sheets are available upon request for all production batches.
Q5: How does this aftermarket pump compare to OEM units?
A: Our pumps meet or exceed original flow and pressure specifications with reinforced critical components.
Q6: What warranty terms apply?
A: Standard 12-month warranty covers manufacturing defects with extended options available.
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