PC360‑7 Hydraulic Pump for Komatsu PC360‑7 36‑ton Heavy‑duty Excavator spare parts

Short Description:

The Komatsu PC360‑7 hydraulic main pump is an original OLSS open‑load‑sensing dual‑variable piston pump, the core power source matched for Komatsu PC360‑7 36‑ton heavy‑duty excavator. Precisely calibrated for the OLSS hydraulic system, it perfectly matches the engine power‑torque curve of PC360‑7, converting mechanical rotation power into high‑pressure hydraulic energy. It supplies stable flow for boom, arm, bucket, travel and swing hydraulic actuators. Optimized for quarry mining, rock breaking, heavy‑load loading and large‑scale earth‑moving cycles, this main pump delivers high power output, rapid response and reliable load‑sensing regulation, adapting to long‑time high‑intensity mine and earth‑moving construction conditions.

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description

Genuine Komatsu PC360‑7 main pump adopts heavy‑duty dual‑piston variable displacement structure, equipped with PC power control valve, LS load‑sensing control valve, LS‑EPC proportional solenoid valve and servo piston assembly. Driven by engine power, the pump adjusts displacement in real‑time according to system load signals to realize power matching between engine and hydraulic system. Core plunger‑barrel pairs, valve‑plate and slipper components adopt super‑precision grinding and surface hardening treatment, reducing internal leakage and friction loss under continuous heavy‑load impact. High‑strength cast pump housing resists vibration and pressure shock from mining‑site operation. Every finished pump passes factory full‑pressure impulse test, displacement calibration and long‑cycle endurance inspection. Compared with medium‑tonnage pump assemblies, PC360‑7 main pump has larger displacement and stronger power output, featuring stable load feedback, good anti‑contamination performance and convenient on‑site adjustment, effectively improving typical faults such as insufficient power, slow action response and high system heat generation for heavy‑duty excavators.

product parameters

Brand: KOMATSU Genuine Original

Model: PC360‑7

Product Name: OLSS Open Load‑Sensing Dual‑Variable Piston Hydraulic Main Pump Assembly

Applicable Equipment: Komatsu PC360‑7 36‑ton Heavy‑duty Excavator

Structural Type: Dual‑piston variable displacement pump, OLSS open load‑sensing system, LS‑EPC electronic proportional control

Core Structure: High‑strength cast pump housing, hardened plunger‑cylinder assembly, wear‑resistant valve‑plate & slipper, PC power control valve, LS load‑sensing valve, LS‑EPC proportional solenoid valve, servo piston unit, high‑pressure ageing‑resistant sealing group

Main Material: High‑strength alloy cast housing, carburized hardened alloy plunger, high‑precision valve‑plate, composite high‑pressure sealing parts

Core Function: Convert mechanical energy to high‑pressure hydraulic energy, variable displacement adjustment, LS load‑sensing power matching, overload pressure limiting protection, hydraulic energy supply for whole machine actuators

Working Characteristics: Engine‑hydraulic power coordination, sensitive load response, stable displacement regulation, good anti‑pollution performance, convenient pressure‑flow onsite adjustment

Working Condition Adaptation: Quarry stone excavation, rock ripping, heavy‑material loading, large‑scale earthworks, foundation excavation, long‑duration heavy‑load cyclic operation

Matching Parts: PC360‑7 OLSS main control valve, heavy‑duty hydraulic cylinder group, travel & swing motor, PPC pilot valve, high‑pressure hydraulic pipeline and filter elements

advantages

Exclusive OLSS system calibration for PC360‑7, perfect power matching with original engine and main control valve, delivering sufficient hydraulic power under rock‑digging and heavy‑loading working conditions.
Combined PC power control and LS load‑sensing control dynamically adjusts pump displacement according to actual load, reducing unnecessary power loss and improving overall working efficiency.
Hardened precision plunger‑cylinder and slipper‑valve‑plate assemblies minimize internal leakage, maintaining stable output performance after long‑time continuous high‑intensity quarry‑site operation.
LS‑EPC electronic proportional valve realizes flexible remote control of pump power, adapting to different operation modes of excavation, loading and leveling.
Heavy‑duty cast pump housing withstands frequent pressure impact and severe vibration, enhancing reliability under harsh mine‑site environments.
Modular internal control‑valve layout supports partial component replacement, lowering spare‑parts cost and on‑site maintenance difficulty for 36‑ton heavy‑duty machines.
Original mounting dimensions support one‑to‑one direct replacement without modification, shortening equipment downtime for overhaul and reconstruction.

maintenance & replacement tips

Inspect pump mounting bolts, LS‑EPC solenoid connector and oil‑port sealing surfaces regularly to eliminate oil‑leak risks caused by long‑term quarry‑site heavy‑load vibration and mechanical impact.
Replace hydraulic oil and filter elements strictly following Komatsu official maintenance cycles, to prevent hard granular impurities from scratching precision plunger‑barrel pairs and degrading main‑pump performance.
Adopt qualified high‑cleanliness hydraulic oil, to avoid internal component sticking and LS load‑sensing signal disorder triggered by oil contamination and deterioration.
Periodically test main‑system pressure, pump output displacement and LS‑EPC signal response status, ensuring the hydraulic main pump runs within the rated pressure range of PC360‑7.
Avoid persistent full‑load overpressure operation and frequent violent rock‑breaking impact, to slow fatigue wear of internal precision hydraulic and electronic components.
Replace genuine Komatsu PC360‑7 hydraulic main pump timely once faults including insufficient digging power, slow actuator response, obvious internal leakage and system high‑temperature occur, so as to restore full‑machine hydraulic power 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.