PC200‑7 Hydraulic Pump for Komatsu PC200‑7 20-ton Heavy-duty Excavator spare parts

Short Description:

The Komatsu PC200‑7 hydraulic main pump is an original factory load-sensing variable piston pump, exclusively matched for the hydraulic system of Komatsu PC200-7 20-ton heavy-duty excavator. Serving as the core power source of the whole machine, it supports the original OLSS open load-sensing hydraulic system, precisely cooperating with engine power output and multi-way control valve flow distribution. This pump converts mechanical power into hydraulic energy, providing stable and sufficient power support for excavation, lifting, traveling and slewing operations. Optimized for long-duration earthmoving, quarry loading, foundation trenching and high-frequency variable-load construction, it features strong power reserve, excellent pressure retention, low attenuation under continuous heavy load and outstanding operational stability, fully adapting to long-hour intensive working scenarios of PC200-7 classic excavators.

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description

The original PC200‑7 hydraulic pump adopts an upgraded heavy-duty swashplate variable structure, composed of high-precision cylinder block, wear-resistant piston assembly, high-hardness valve plate, intelligent variable regulator and reinforced pressure-resistant sealing components. Equipped with dedicated load-sensing adjustment logic, it can dynamically adjust displacement and flow according to real-time load changes, realizing intelligent power matching and effectively reducing invalid power consumption and system heat generation. Core friction pairs are processed by ultra-precision grinding and surface hardening treatment, with low friction coefficient and strong impact wear resistance. The overall structural rigidity is enhanced to resist long-term vibration and pressure impact from harsh construction sites. All finished pumps pass strict factory full-pressure impact tests, flow calibration and long-cycle fatigue verification. Compared with ordinary universal pumps, genuine Komatsu PC200-7 main pumps feature higher matching accuracy, stronger heavy-load adaptability, more stable volumetric efficiency and longer service life, thoroughly solving common faults such as weak digging power, slow response and insufficient system pressure in old equipment.

product parameters

Brand: KOMATSU Genuine Original

Model: PC200‑7

Product Name: Load-Sensing Variable Piston Hydraulic Main Pump

Applicable Equipment: Komatsu PC200‑7 20-ton Heavy-duty Excavator

Structural Type: Swashplate variable piston pump, OLSS open load-sensing hydraulic system

Core Structure: High-rigidity integral pump body, wear-resistant cylinder block, precision piston assembly, high-hardness valve plate, load-sensing variable regulator, anti-fatigue bearing set, high-pressure aging-resistant sealing assembly

Main Material: High-strength cast alloy pump shell, anti-wear alloy piston, copper-based high-precision valve plate, composite pressure-resistant sealing parts

Core Function: Whole machine hydraulic power output, dynamic variable flow adjustment, load adaptive power matching, system constant pressure maintenance

Working Characteristics: Sensitive load follow-up, stable pressure output, low heat generation, high volumetric efficiency, strong impact resistance and fatigue resistance

Working Condition Adaptation: Suitable for large-scale earthwork, quarry loading, foundation engineering, road renovation and long-term continuous heavy-load operation

Matching Parts: Original multi-way control valve, hydraulic cylinder assembly, travel and swing motor, pilot valve, high-pressure hydraulic pipeline and filter elements

advantages

Matched with exclusive OLSS load-sensing calibration for PC200-7, realizing deep integration of engine, main pump and multi-way valve, with sufficient power reserve for heavy excavation and impact working conditions.
Dynamic intelligent variable adjustment technology automatically distributes flow according to load demands, effectively reducing invalid power loss and improving construction efficiency and fuel economy.
High-precision hard friction pairs minimize internal wear and steady-state leakage, maintaining stable volumetric efficiency and consistent power output after long-hour intensive operation.
Optimized internal flow channel structure reduces hydraulic turbulence and flow resistance, effectively restraining excessive temperature rise during long-term continuous heavy-load work.
Reinforced integral pump body and heavy-duty bearing structure enhance vibration and pressure impact resistance, adapting to harsh and changeable construction environments.
Upgraded high-pressure composite sealing components prevent oil seepage and pressure drop failure under long-term variable-load operation, ensuring lasting sealing performance.
Original standard installation size supports 1:1 non-destructive replacement without modification, greatly reducing equipment maintenance cycle and operating costs.

maintenance & replacement tips

Regularly inspect pump body mounting bolts, oil port connections and sealing surfaces to eliminate hidden leakage dangers caused by long-term heavy-load vibration and site impact.
Replace hydraulic oil and filter elements strictly in accordance with Komatsu’s official maintenance cycle to prevent hard impurity particles from scratching precision internal components and reducing pump working efficiency.
Adopt genuine clean hydraulic oil that meets factory standards to avoid valve core jamming and disordered variable adjustment caused by oil deterioration and contamination.
Periodically detect main system pressure and load-sensing response status to ensure the hydraulic pump operates stably within the rated working pressure range of PC200-7.
Avoid long-term full-load overpressure operation and frequent violent impact excavation to delay fatigue wear of core components such as cylinder block and valve plate.
Timely replace the original PC200-7 hydraulic pump once faults including insufficient system pressure, weak excavation power, slow action response and severe pump heat occur to restore full hydraulic performance.

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.