Hydraulic Pump 708-2L-00280 Fan Motor Komatsu

Product Overview

708-2L-00280 hydraulic fan motor is OEM heavy-duty cooling replacement part custom-made for Komatsu PC2000-11 large excavator.

Serving as the core power unit of the radiator cooling circuit for PC2000-11, this electro-proportional hydraulic fan motor adjusts fan rotation speed dynamically responding to real-time variations in coolant and hydraulic oil temperatures. It delivers stable, powerful heat dissipation during heavy open-pit mining excavation, bulk quarry digging, large-scale infrastructure earthworks and long-duration continuous mine shifts. The adaptive speed design effectively prevents engine thermal overload under intensive digging workloads and optimizes fuel consumption by cutting redundant fan power output.

Product Highlights

✅ Excavator-Specific Proportional Speed Regulation

Heavy-duty built-in DC12V proportional solenoid achieves smooth stepless speed adjustment. Fan speed automatically rises to boost heat dissipation during peak digging periods, and lowers during transit and idle intervals, reducing wasted parasitic power and improving long-term fuel economy in mining projects.

✅ Precise OEM Mounting Dimensions

Strengthened mounting flanges, sturdy port threading and precision-machined shaft splines perfectly fit the factory installation cavity of PC2000-11. No on-site metal cutting or pipeline retrofitting is needed during replacement, which greatly shortens costly equipment downtime at remote mine sites.

✅ Shock-Resistant Thick Cast Iron Housing

Integrated extra-thick alloy cast iron shell absorbs strong recurring vibration produced by heavy bucket impacts and rough off-road travel. It prevents housing cracks and loosening of delicate internal hydraulic components even under extended cycles of harsh mining work.

✅ Multi-Layer Sealing Against Harsh Mine Conditions

Stacked premium fluorine rubber oil seals together with enlarged outer dust gaskets block fine mining dust, hard rock debris and muddy pit sludge. Seal wear slows significantly in dusty quarry zones, wet excavation pits and windy open-pit operation zones.

✅ Multi-Stage Pre-Shipment Quality Verification

All finished motors undergo 22MPa pressure retention leak testing, accurate rotational speed calibration and prolonged full-load aging trials. Hidden manufacturing defects get screened out beforehand to cut frequent expensive field maintenance.

✅ Dual Budget-Friendly Procurement Choices

Brand-new factory-standard motors satisfy stringent maintenance standards of large mining corporations; remanufactured versions fully replace worn internal hydraulic core components, bringing outstanding cost advantages for bulk warehouse stocking.

✅ Exclusive Fit for PC2000-11

Purpose-built dimension parameters deliver perfect compatibility with PC2000-11, eliminating adaption troubles and mounting mismatches during aftermarket replacement.

✅ Dynamically Balanced Internal Rotor Assembly

Large rotating internal parts are treated with professional dynamic balancing procedures to dampen vibration and operational noise, offering steady protection for bulky radiator fins and surrounding heavy hydraulic pipework.

✅ Extend Overall Hydraulic Circuit Service Life

Stable thermal management keeps the large-displacement engine and key hydraulic assemblies within optimal temperature ranges, slowing aging of pump internals, thick rubber hoses and peripheral seals under nonstop heavy digging tasks.

✅ Optimized International Bulk Shipping

Durable shockproof industrial packaging adapts well to sea freight, air cargo and cross-border express delivery. Tiered bulk discounts are available, backed by unified 6-month global warranty excluding human-inflicted damage and faulty installation.

Condition: Brand new

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