M5BF 028 fan motor For XCMG XE900 excavator

product parameters

Part No：M5BF 028
Applicable Equipment：XCMG XE900 large excavator, original part, matched with fan pump
Material：Cast iron housing, high strength alloy steel vane, alloy rotor, heavy-duty roller bearing
Surface Treatment：Anti-rust coating, ultrasonic deep cavity cleaning, thoroughly remove casting sand, metal scraps and burrs inside flow channel
Control Mode：Flow proportional control, speed varies with hydraulic flow
Rated Working Pressure：25 MPa
Max Instantaneous Peak Pressure：32 MPa
Feature：Parker Denison M5BF series, compact vane construction, high starting torque, low noise, low internal leakage, good contamination resistance, specially original fan motor for XCMG XE900 large excavator independent cooling system
Working Temperature：-20℃ ~ +115℃
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

• **Original OEM matching & proportional speed regulation**
Parker Denison M5BF 028 vane motor, original design matched for XCMG XE900 cooling system. It perfectly cooperates with supporting fan pump. Fan speed changes automatically according to hydraulic flow to match heat load, effectively solving overheating issue under heavy-load mining working conditions.
• **High starting torque & stable rotation, low leakage**
Precision ground vanes, cam ring and rotor assembly. Optimized clearance and sealing structure. High starting torque even under back pressure. Steady rotation with low volumetric leakage, avoiding insufficient fan power caused by pressure drop.
• **Heavy-duty cast iron housing, shock & vibration resistant**
Cast iron shell treated by stress relief annealing, eliminating internal residual stress. Strong resistance to open-pit vibration, hydraulic impact and dust corrosion. Less shell deformation and slower wear of internal components for longer service life.
• **100% bench tested, original interchangeability**
Each original motor passes torque, speed and leakage test on hydraulic test bench. All installation dimensions, port positions and shaft size fully consistent with original specifications. Direct plug-and-play replacement, no modification required, shorten machine downtime and reduce maintenance cost.
• **Low noise operation & reliable cooling protection**
M5BF vane structure runs smoothly with low noise. It keeps engine and hydraulic components operating within safe temperature range, preventing thermal damage to radiator and engine caused by overheating. It is the genuine original replacement part for XCMG XE900 overhaul and daily maintenance.

FAQ 

**Q1: Which excavator model is this fan motor suitable for? Is it universal?**
A1: This M5BF 028 fan motor is original spare part specially for **XCMG XE900 large excavator**, used for the independent proportional cooling hydraulic system. It cannot be universally used for other excavator models. Must be matched with the corresponding fan pump. Wrong model will lead to insufficient fan speed and machine overheating.

**Q2: What factory tests have been done for this original motor?**
A2: All original M5BF028 motors are 100% inspected on professional hydraulic test bench, including torque test, speed curve detection, high-low pressure tightness test and internal leakage inspection. Strict screening ensures stable field performance, test reports can be provided upon request.

**Q3: Does it need professional debugging after installation?**
A3: Original dimension, direct replacement without modification. After installation, bleed air from cooling hydraulic circuit and check fan rotation direction. If machine is still overheating, check hydraulic oil cleanliness and proportional control signal of fan pump.

**Q4: How to extend the fan motor service life?**
A4: Before installation, fully flush hydraulic pipeline and replace new hydraulic filter elements to remove dirt and particles. Inspect shaft thread, seal rings and mounting bracket for wear. After installation, perform no-load test run to check noise, rotation and temperature rise before putting into heavy mining operation.

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