DX380/DX420 Fan Motor for Doosan excavators spare parts

Short Description:

The DX380/DX420 fan motor is a heavy-duty hydraulic cooling motor specially matched for Doosan DX380 and DX420 large excavators.

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Product Detail

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description

The DX380/DX420 heavy-duty fan motor adopts upgraded reinforced hydraulic motor structure, specially optimized for the high-heat generation and high-frequency heavy-load cycle working characteristics of Doosan DX380/DX420 large excavators. Different from ordinary universal replacement motors, it strictly follows the original hydraulic matching parameters and installation dimensions of Doosan DX380/DX420 equipment, with high internal fitting precision and ultra-low internal leakage. Equipped with reinforced wear-resistant rotor assembly, high-strength anti-fatigue bearing group and original high-temperature aging-resistant sealing structure, it maintains stable torque output and constant speed operation after long-term high-pressure hydraulic impact and frequent load switching. The high-rigidity integrated motor shell has excellent vibration resistance, dust and sediment erosion resistance, perfectly adapting to harsh construction environments such as earthwork sites and quarries. All finished motors pass strict factory impulse tests, high-temperature durability tests and full-parameter performance calibration, with stable operation, low failure rate and long service life, fully meeting the full-cycle heavy-duty heat dissipation operation requirements of Doosan DX380/DX420 large excavators.

product parameters

Product Model: DX380/DX420 Fan Motor

Applicable Equipment: Doosan DX380, DX420 Large Excavator

Product Type: Heavy-duty Hydraulic Drive Cooling Fan Motor

Core Structure: Reinforced Wear-resistant Rotor Assembly, Anti-fatigue Bearing Group, High-temperature Pressure-resistant Sealing System, High-rigidity Integral Shell

Working Characteristics: Stable Speed Operation, Strong Anti-fluctuation Ability, Low Vibration & Low Noise, High Temperature Resistance, Durable Wear Resistance

Core Function: Drive Cooling Fan Steady Operation, Match Fan Pump to Complete Closed-loop Heat Dissipation, Stabilize Engine and Hydraulic System Working Temperature

Applicable Working Conditions: Quarry Hard Rock Excavation, Long-term Full-load Continuous Operation, High-temperature and High-dust Open-air Construction

Supporting Matching Parts: DX380/DX420 Special Fan Pump, Large-diameter Cooling Fan Blade, Radiator Assembly, Special Hydraulic Pipeline and Precision Filter Elements

advantages

Professionally customized for Doosan DX380/DX420 large excavators, perfectly matching original hydraulic parameters and installation size, supporting 1:1 non-destructive direct replacement without equipment modification, with high system matching degree and stable overall operation performance.
Adopting high-torque and low-leakage hydraulic technology, it maintains constant speed and strong air output under long-term heavy-load and high-temperature working conditions, effectively avoiding heat dissipation failure and high-temperature faults caused by motor speed drop and insufficient fan air volume.
Reinforced internal rotor and bearing structure enhances anti-fatigue and anti-impact performance, adapts to high-frequency continuous operation of large excavators, eliminates operating jitter and speed loss, and maintains long-term efficient and stable heat dissipation efficiency.
High-quality high-temperature anti-aging composite sealing system effectively resists long-term high-pressure and high-temperature hydraulic cyclic impact, completely avoids shaft end oil leakage and performance attenuation, and reduces equipment failure rate and maintenance frequency.

FAQ

Q1: What are the common failure manifestations of DX380/DX420 fan motor?
A: Common faults include insufficient fan speed, weak air volume, motor jitter and abnormal noise, shaft end oil leakage, slow temperature drop, and frequent high-temperature alarms of engine and hydraulic system under heavy load operation.
Q2: Why does the fan motor speed drop under continuous heavy load?
A: Long-term full-load operation causes wear of internal precision components, increased internal leakage, and insufficient torque output, resulting in fan speed attenuation and weakened heat dissipation capacity. Timely replacement of the aging fan motor can restore original heat dissipation performance.
Q3: How to maintain DX380/DX420 fan motor daily?
A: Regularly clean dust and sediment on fan blade and radiator to avoid heat dissipation blockage and system overload. Check the motor for oil leakage and abnormal operating noise. Replace hydraulic oil and filter elements on schedule to prevent hard impurities from wearing internal components.
Q4: How to extend the service life of the fan motor?
A: Avoid long-term extreme high-temperature overload operation and sudden hydraulic pressure impact, keep the hydraulic system oil clean, reduce fatigue wear of internal precision parts, and effectively extend the service life of the fan motor.
Q5: Is professional debugging required after motor replacement?
A: The DX380/DX420 fan motor adopts original standard installation size, supporting plug-and-play non-destructive replacement. No complex professional debugging is required after installation, and the equipment can resume normal heat dissipation operation.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.