800107943 XCMG GR2605 motor grader φ840 suction fan

800107943 XCMG GR2605 motor grader φ840 suction fan

The XCMG GR2605 grader 800107943 φ840 suction fan is a key air delivery component of the engine cooling system. Precisely matched with the 803077507 radiator assembly, it is manufactured strictly according to XCMG’s original design standards, aerodynamic parameters, and process specifications. Specifically designed for the Cummins QSB6.7 turbocharged intercooled engine, it is suitable for harsh operating environments with high loads, high temperatures, and high dust levels, such as highway construction, airport construction, mining operations, and large-scale earthmoving. As the radiator’s “powerful air delivery engine,” it introduces cool air through negative pressure adsorption, forcing it through the radiator core to quickly remove heat. Working in conjunction with the radiator, it stabilizes the engine coolant temperature within the optimal range of 80-90℃, preventing engine overheating that could lead to power loss or malfunction. This directly ensures the cooling system’s heat dissipation efficiency and the equipment’s continuous operating capability. It is a high-quality original factory replacement for aging or reduced airflow fans in the GR2605 grader’s cooling system.

This suction fan features a large φ840mm diameter design with streamlined, biomimetic blades optimized through fluid dynamics simulation. The six blades are precisely arranged at an angle, reducing the drag coefficient by 18%. At rated speed, it can generate a massive airflow of ≥2800m³/h and a wind pressure of ≥350Pa, efficiently covering the entire radiator core surface to ensure sufficient heat exchange between the heat pipes and fins. Combined with the radiator’s 38kW cooling power, it easily meets the cooling needs of an engine operating at full load. The fan blades are integrally injection molded from 30% glass fiber reinforced PBT engineering plastic, balancing lightweight design with high strength. Weighing only 6.8kg, it reduces motor load and provides excellent impact resistance. The blade edges are rounded (radius ≥0.5mm), complying with GB4706.27 safety standards to avoid safety hazards and airflow turbulence caused by sharp edges.

The fan motor adopts a brushless DC motor design, equipped with high-quality copper coils and high-performance permanent magnets. It has a rated voltage of 24V, a rated power of 1.8kW, a maximum speed of 2800r/min, and an operating efficiency of ≥85%, resulting in low heat loss. The motor is equipped with double ball bearings, offering excellent wear resistance and a continuous operating life exceeding 10,000 hours. It operates stably within a wide temperature range of -40℃ to 120℃ without jamming or abnormal noise. The motor integrates an intelligent temperature control speed regulation module, which receives coolant temperature signals in real time via a temperature sensor, achieving 0-100% stepless speed regulation: when the coolant temperature is below 80℃, it operates at low speed (≤1200r/min) to reduce energy consumption and noise; when the temperature is above 90℃, it automatically increases to high speed to maximize heat dissipation efficiency, saving more than 15% energy compared to a fixed-speed fan.

The fan frame is made of high-strength cold-rolled steel plate, stamped and formed, and treated with electrophoresis and powder coating for double-layer anti-corrosion, achieving an IP54 protection rating. It effectively resists dust, sand, gravel impact, and mud and water erosion. The metal mesh cover has ≤5mm pores, ensuring smooth airflow while preventing foreign objects from entering the fan blade area. The connection between the frame and the motor is equipped with shock-absorbing rubber pads, absorbing over 90% of operating vibrations, reducing impact on the radiator and chassis, and lowering overall noise. All mounting holes and brackets precisely match the pre-drilled positions of the XCMG GR2605 original vehicle cooling system, with hole tolerances controlled within ±0.03mm. It seamlessly fits the radiator shroud and air guide ring. Original mounting bolts and anti-loosening washers are included, requiring no additional modifications during installation; simply align and tighten to complete assembly, making installation and disassembly convenient and efficient.

Core Technical Parameters

Part Model: 800107943
Part Name: φ840 Suction Fan (Cooling System Air Supply Component)
Applicable Model: XCMG GR2605 Motor Grader
Compatible Components: Used with 803077507 Radiator Assembly
Compatible Engine: Cummins QSB6.7 Turbocharged Intercooled Engine
Material: 30% Glass Fiber Reinforced PBT Fan Blades, Cold-Rolled Steel Plate Frame, Dual Ball Bearing Brushless Motor, Shock-Damping Rubber Pads
Process: Fluid Dynamics Optimization Design, Integrated Injection Molding, Electrophoresis + Powder Coating for Corrosion Protection, Intelligent Modular Integration
Core Parameters: Diameter φ840mm, Airflow ≥2800m³/h, Air Pressure ≥350Pa, Rated Voltage 24V
Speed ​​Range: 0-2800r/min (stepless speed regulation)
Tolerance Range: Temperature -40℃ to 120℃, Protection Rating IP54
Features: Powerful airflow, intelligent speed regulation, vibration and weather resistance, low noise and energy saving, precise installation
Functions: Forced air cooling, enhanced radiator heat exchange, adaptive temperature control, improved cooling system efficiency

Core Advantages

Original factory standard precise fit, working synergistically with the radiator to improve heat dissipation; large-diameter streamlined fan blades, excellent airflow and air pressure; brushless motor + double ball bearings, long life and low failure rate; intelligent temperature control speed regulation, energy saving and noise reduction; IP54 protection + double-layer corrosion protection, suitable for harsh working conditions; easy installation, quickly restores the cooling system’s airflow performance.

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1 381100421 tie rod
2 805338284 Washer 16GB/T97.1-2002
3 805046570 Bolt M16×25 GB/T5783-2000
4 803077507 Radiator assembly XGSX07-57
5 805046552 Bolt M12×50 GB/T5783-2000
6 329900303 Thickened flat washer WT041.01240
7 800107943 φ840 Fan
8 805011330 Bolt M10×25 GB/T5783-2000
9 329900302 Thickened flat washer WT041.01030
10 380904108 Transition Plate
11 380904854 Motor Bracket
12 805046416 Bolt M10×30 GB/T5783-2000
13 805338283 Washer GB/T97.1-2002
14 805046563 Bolt M14×30 GB/T5783-2000

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