M5BF 045 2N03/2N04 Fan Motor for XCMG XE490/LiuGong 950 excavator

product parameters

Part No：M5BF 045 2N03 / M5BF 045 2N04
Applicable Equipment：XCMG XE490 excavator, LiuGong 950 excavator, matched with proportional fan pump
Material：High strength alloy cast iron housing, carburized alloy steel piston, bronze valve plate, heavy-duty roller bearing
Surface Treatment：Manganese phosphate anti-rust coating, ultrasonic deep cavity cleaning, thoroughly remove casting sand, metal scraps and burrs inside flow channel
Control Mode：Speed controlled by input hydraulic flow, matched proportional pump control
Rated Working Pressure：25 MPa
Max Instantaneous Peak Pressure：30 MPa
Feature：Compact bent-axis design, high starting torque, low internal leakage, stable rotation, good contamination resistance, low vibration & noise, Parker M5BF series structure
Working Temperature：-20℃ ~ +115℃
Rated Rotation Speed：1600 rpm, Max allowable speed:1900 rpm
Package：Independent anti-rust packing + Standard export carton
Storage suggestion：Keep dry, avoid moisture, rust and collision, indoor constant temperature storage, stay away from corrosive gas

• High-strength alloy cast iron housing. Integral casting plus stress relief annealing treatment, excellent structural rigidity and impact resistance. It withstands fluctuating hydraulic pressure and vibration from mining sites, maintaining steady torque output under continuous heavy load.
• Ultra-precision machined internal friction pairs. Bent-axis piston structure delivers high starting torque. Low internal leakage ensures accurate fan speed response following flow change from proportional pump.
• Good resistance to contaminated hydraulic oil. Optimized internal flow channel reduces abrasive wear caused by fine solid particles. Manganese phosphate anti-rust coating protects housing from dust, mud and humid working environment, extending service cycle.
• Strict multi-stage inspection before shipment. Every fan motor is bench-tested for torque, rotating speed and leakage. Assembly quality fully verified. Batch consistency guaranteed; defective units rejected before packing.
• Protect engine and radiator assembly. Precise fan speed regulation keeps engine temperature within normal range, avoiding overheating damage to engine, oil cooler and water radiator, reducing secondary component failure risk.

FAQ 

Q1: What machine fits M5BF 045 2N03/2N04 fan motor? Can it substitute other part numbers?
A1: This Parker M5BF 045 fan motor fits XCMG XE490 and LiuGong 950 large excavator, works together with matched proportional fan pump. It cannot be universally fitted to all excavators. Wrong model selection may lead to insufficient fan torque, unstable fan rotation or early motor damage. Please double-check OEM part number and machine model before purchase.

Q2: What inspections are carried out before shipment?
A2: Every motor is 100% inspected on hydraulic test bench, including torque test, speed characteristic test, internal & external leakage inspection and dimensional verification. Simulated load test available to confirm stable working performance after installation. Test reports can be provided upon request.

Q3: What’s the warranty and what’s excluded?
A3: 12-month warranty under correct installation, clean hydraulic oil and normal operation. Warranty does NOT cover damage caused by contaminated oil, particle jamming, cavitation, overpressure, wrong piping and improper maintenance.

Q4: Pre-installation recommendations?
A4: Fully flush cooling hydraulic pipeline, replace hydraulic filters and check oil cleanliness. Inspect seals, mounting bracket and fan hub. After installation, run no-load test first, check motor noise, rotation and temperature before putting the machine into heavy-duty mining work.

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