45kW Motor

What is a 45kW Motor? 

The 45kW three-phase asynchronous motor serves as a core power unit for heavy-duty industrial applications. Designed and manufactured in strict accordance with the GB/T 755-2019 and IEC 60034 international standards for rotating electrical machines-as well as the GB 18613 energy efficiency regulations-this unit is a high-efficiency, totally enclosed, self-fan-cooled three-phase AC induction motor. Compared to 37kW models, the 45kW variant offers higher torque, superior overload capacity, and broader load adaptability. Engineered specifically for continuous heavy-duty operation and high-impact load conditions, it serves as a primary drive unit for heavy industry, construction materials, mining, and large-scale fluid handling equipment.
This series of 45kW three-phase motors features high-purity oxygen-free copper windings, optimized magnetic circuits using silicon steel laminations, and enhanced rotor dynamic balancing processes. These features effectively resolve common industry issues associated with high-power motors, such as high no-load losses, rapid temperature rise under heavy loads, insufficient torque, and excessive noise and vibration.

 

 

 

 

• Delivers high-torque output for heavy-duty applications with superior impact resistance. Optimized stator-rotor slot/pole combinations and air-gap precision significantly boost starting and maximum torque, achieving an overload capacity of 1.15 times the rated load. It ensures stable power delivery-without stalling, speed drops, or overload trips-even when subjected to the frequent shock loads typical of crushers, large mixers, and heavy-duty conveyors. Perfectly tailored for the demanding operating conditions of 45kW heavy-duty machinery, it overcomes the common shortcomings of standard high-power motors, such as insufficient torque and susceptibility to load-induced shutdowns.

 

• Comprehensive heat dissipation ensures controlled temperature rise under heavy loads.
  To address the challenge of heat accumulation in high-power motors operating at full load, the design features upgraded, wider, and thicker cooling ribs and a larger, quiet cooling fan. Combined with an IC411 forced self-cooling structure, this creates a comprehensive, circulating airflow path. Paired with an F-class high-temperature insulation system, the motor maintains temperature rise within permissible limits-even during continuous 24-hour full-load operation or use in high-temperature summer workshops. This effectively prevents winding degradation due to overheating and failures caused by short circuits or burnout, thereby significantly extending the equipment's service life.

 

• Precision-engineered with a reinforced housing, this unit is shock-resistant, wear-resistant, and maintenance-free. It features a high-strength, heavy-duty cast iron base and a precision cast-aluminum rotor; subjected to triple-stage dynamic balancing, it ensures eccentricity-free, low-vibration operation at high speeds. Equipped with high-precision, heavy-load, quiet-running bearings, it is built for sustained, high-intensity operation-offering exceptional durability and a minimal failure rate. The housing's sealing structure has been comprehensively upgraded to provide superior dust and water resistance, ensuring stable, long-term performance in heavy-industrial environments characterized by dust, moisture, and intense vibration. This eliminates the need for frequent disassembly and maintenance, significantly reducing labor and downtime costs.

 

 

 

 

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