HPV118 Hydraulic Pump
Original Standard Professional Design:The HPVO118 hydraulic pump is a high-performance main pump developed by Hitachi Construction Machinery in cooperation with HANDOK, built as a professional axial piston pump exclusively for 20-ton medium-sized construction machinery, fully following Hitachi original manufacturing and design standards. It is a direct OEM-grade replacement part, not ordinary aftermarket accessories, with performance and structure completely consistent with the original factory pump, ensuring stable and reliable long-term operation, and perfectly matching the original hydraulic system of supporting equipment without compatibility risks.
Ultra-Wide Multi-Brand Equipment Compatibility:This complete pump assembly integrates all core components including pump body, piston, swash plate, valve plate, cylinder block and drive shaft, supporting plug-and-play installation with no additional parts matching required. It boasts extremely wide adaptability, covering mainstream global equipment models: Hitachi ZAXIS200/210/240/250/270, ZX200LC-3/3G/5G series excavators, John Deere 210G/250G/290G excavators, XCMG XE215D excavator, Liugong CLG856H loader and Kato NK-250VR crane, meeting the maintenance and replacement needs of multiple brands of 20-ton equipment with one product.
The HPVO118 main hydraulic pump assembly is a professional-grade core component jointly built by Hitachi and HANDOK, specially designed for 20-ton medium-sized construction machinery, integrating advanced Load Sensitive control technology and reliable swash plate plunger structure. With a displacement of 118 cm³, rated pressure of 34.3 MPa and perfect speed matching, it delivers stable and powerful hydraulic power, suitable for high-intensity continuous operation. It has ultra-wide compatibility, covering Hitachi, John Deere, XCMG, Liugong and other brands of excavators, loaders and cranes, with standardized installation, wide oil adaptability and scientific running-in design to ensure durability and low failure rate. As an OEM-grade replacement part, it effectively solves common hydraulic system faults such as weak action, slow response and high fuel consumption, and is an ideal choice for equipment maintenance, repair and performance upgrade, providing stable and efficient power support for various engineering projects.
Advanced Load Sensitive (LS) Control Technology
Adopting Hitachi's exclusive integrated LS (Load Sensitive) feedback control system, a core technical highlight of this pump, it can intelligently and automatically adjust the output flow in real time according to the actual working load of the equipment. Unlike ordinary fixed flow pumps, it only outputs the required flow for the current operation, avoiding unnecessary hydraulic oil circulation and energy loss, effectively reducing the engine load and overall fuel consumption of the equipment, while making the excavator action more sensitive and precise, eliminating lag and idle speed energy waste.
Perfect Pressure Parameters for Heavy-Duty Work
With professional pressure configuration tailored for 20-ton medium excavators, it fully meets high-intensity engineering operation demands: rated working pressure reaches 34.3 MPa, stable and durable for long hours of continuous excavation, loading and hoisting work, no pressure attenuation or weak action; peak pressure up to 40 MPa, allowing short-term overload operation to cope with complex working conditions such as hard rock excavation and sudden heavy loads, effectively preventing pump body damage caused by instantaneous pressure surge, enhancing the safety and stability of the entire hydraulic system.
Optimized Displacement & Speed Matching
With a rated displacement of 118 cm³, it perfectly balances power output and energy efficiency, suitable for the working characteristics of 20-ton equipment. The economic speed range is 1800-2200 rpm, matching the efficient operating range of the supporting engine, and the maximum speed can reach 2350 rpm, meeting the demand for short-term high-speed operation. Adopting engine gearbox direct connection drive mode, it is perfectly adapted to 120-160 kW power sources, ensuring efficient power transmission and no torque loss.
Standardized High-Precision Installation Design
The drive shaft spline strictly complies with SAE J744 international standard, ensuring efficient torque transmission, avoiding slippage and power loss during operation, and prolonging the service life of the drive assembly. The installation parameters are professionally optimized: recommended oil suction diameter ≥DN65, pipeline length ≤1.5 meters, which can effectively prevent cavitation risk, a common fault of hydraulic pumps, protect internal components from erosion, and ensure stable operation of the hydraulic system in long-term use.
Wide Oil Compatibility & Long Service Life
Compatible with conventional ISO VG46 anti-wear hydraulic oil, requiring a viscosity index ≥140, with a wide working temperature range of -20℃ to +80℃, adapting to various harsh climate environments such as cold regions and high-temperature construction sites, no need for special customized hydraulic oil, reducing daily use and maintenance costs. The internal components are made of high-strength wear-resistant materials, with precision machining, strong anti-wear and anti-vibration performance, and a long overhaul cycle.
Scientific Running-In Design for Durability
Equipped with a scientific 48-hour running-in period requirement, during which the operating pressure is controlled not to exceed 25 MPa and the speed is stabilized at 1800 rpm, which can fully run in the internal piston, cylinder block and other moving parts, making the fit between components tighter, reducing early wear and tear, and greatly extending the overall service life of the pump body. This professional running-in guidance ensures the pump exerts optimal performance after formal use and reduces the failure rate in the early stage of use.
