200-3252 Fan Motor for Caterpillar 385B excavator

product parameters

Part No：200-3252
Type：Hydraulic Axial Piston Fan Motor
Applicable Equipment：CAT385B Excavator
Working Pressure：22–30MPa
Rated Pressure：27MPa
Peak Instantaneous Pressure：34MPa
Displacement：41cc/r
Rated Flow：68–88 L/min
Maximum Output Speed：2600 rpm
Rated Output Torque：118 N·m
Start Torque：≥125 N·m
Working Temperature：-20℃ ~ +120℃
Hydraulic Oil Viscosity Range：16~100 mm²/s
Filtration Precision Requirement：≤10μm
Feature：Hydraulic proportional speed regulation, high torque, low internal leakage, high temperature resistance, low vibration, stable rotation
Internal Structure：Precision nine-piston axial piston structure, high-precision valve plate pairing
Sealing Grade：High-temperature resistant fluororubber full sealing, zero leakage standard
Protection Grade：IP54 dustproof and waterproof
Package：Independent anti-rust packing + Standard export carton
Storage suggestion：Keep dry, avoid moisture, rust and collision, indoor constant temperature storage

• Precise proportional control. Matches original machine hydraulic control logic perfectly. Motor speed changes dynamically following coolant water temperature and hydraulic oil temperature. Real-time automatic adjustment avoids unnecessary power consumption when cooling demand is low, effectively reduces idle power loss and saves fuel consumption. Fast response of proportional valve ensures timely fan speed adjustment.
• Strong adaptability to harsh working conditions. Optimized internal oil passage design with smooth flow path and low flow turbulence. High precision matched internal components and upgraded sealing assembly. Adapt to high temperature, heavy load, dusty, muddy construction sites. Effectively reduce premature wear, scratching and early failure caused by contaminated hydraulic oil.
• Strict multi-stage inspection before shipment. Each motor is tested for torque, flow stability, pressure impact test and static sealing. Running state monitored throughout testing process. Smooth rotation, low noise and low pulsation, consistent batch performance. Unqualified products will be eliminated strictly before packing.
• Powerful cooling drive. Speed adjustment responds quickly. It can quickly raise fan rotating speed once engine temperature rises. Efficient heat dissipation solves overheating alarm and high-temperature power reduction during heavy loading operation, protecting engine and extending engine service life.
• Direct replacement with good cost performance. Installation dimensions, mounting holes, spline shaft and interfaces fully match OE specs. No pipeline modification, no extra machining required during installation. Easy and fast onsite replacement. Reliable aftermarket spare part for machine overhaul and routine maintenance, balances quality and procurement cost.

FAQ 

Q1: Which machine does 200-3252 fan motor fit? Can it replace other part numbers?
A1: It is specially designed for CAT385B excavator cooling system. Not universal for other CAT models. Mismatched parts may cause slow fan response, poor heat dissipation, engine high temperature and hydraulic component wear. Please carefully verify machine model and OEM part number before purchase.

Q2: What tests are performed before shipment?
A2: Every fan motor is 100% tested on professional hydraulic bench. Tests include pressure resistance, flow stability, proportional response, high-temp sealing and internal leakage inspection. Simulated heavy-load working conditions to guarantee stable and consistent performance after installation.

Q3: Is programming or calibration needed after installation?
A3: Pre-calibrated at factory, plug-and-play normally. If the machine has old fault codes or multiple hydraulic parts replaced at the same time, clear fault codes with diagnostic tool for better temperature control.

Q4: What pre-installation work helps extend service life?
A4: Clean hydraulic tank and pipelines thoroughly, install new filter and use qualified hydraulic oil. Check fan blade condition and oil seals. Run no-load test after installation, confirm no leak and stable regulation before heavy load work.

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