Variable Frequency Motor

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crane hoist motor selection motor hoist crane overhead-crane-motor-type Variable-Frequency-Motor

Variable Frequency Motor

1.Energy Saving: The variable frequency motor adjusts speed according to load, reducing power consumption by 30–50%.

2.Smooth Control: Works with variable frequency motor controllers and variable frequency motor speed controllers for precise 0–100% regulation.

3.Flexible Options: Compatible with AC variable frequency motor, DC variable frequency motor, and three phase variable frequency motor applications.

4.Lower Wear: Soft start and controlled braking minimize stress on gears, pumps, and belts.

5.Long Service Life: Enhanced cooling with variable frequency motor fan or variable frequency motor ventilator ensures stable and durable operation.

Parameter Specification Range
Power Range 0.75 kW – 315 kW (custom options available)
Frequency Range 0 – 60 Hz (up to 100 Hz on request)
Speed 720 / 960 / 1440 / 2880 RPM
Pole Options 2 / 4 / 6 / 8 Poles
Speed Control Accuracy ±0.5% (with closed-loop control)
Efficiency Classes IE2 / IE3 / IE4
Cooling Methods IC411 (self-cooled) / IC416 (force-cooled)
Protection Rating IP44 / IP54 / IP55
Insulation Class F / H (optional VPI insulation)
Standards IEC / GB / ISO compliant

Product Features and Applications

1.Energy Savings: Adapts motor speed to load, cutting energy use by 30–50%.

2.Durability: Reduced mechanical wear extends crane component lifespan.

3.Safety & Control: Works with Variable Frequency Motor Controllers for precise feedback and overload protection.

Whether used in bridge cranes, gantry cranes, winches, or tower cranes, a variable frequency motor ensures smooth load handling, precise control, and powerful lifting performance.

Product Details

1.Motor Junction Box: High-quality junction box for simple, quick, and stable operation.

2.High-Hardness Shaft: Made from premium materials with precision manufacturing for long service life.

3.Heat Dissipation Hood: Excellent heat dissipation performance ensures stable operation of the variable frequency motor.

4.Metal Lifting Ring: A top ring allows easy rope attachment for convenient transportation and movement of the motor.

5.Stable Base: Thickened material and accurate dimensions ensure stable placement during operation.

Product Support

Hanko Heavy Industry produces advanced variable frequency motor drives for cranes with high-grade copper windings and silicon steel. Every unit passes load, insulation, and durability tests before shipment. Solutions range from g series variable frequency motor ventilators to heavy-duty three phase variable frequency motors. We are manufacturers of variable frequency motor, delivering customized and standard designs trusted worldwide.

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Complete Guide

About Hanko

Hanko products are manufactured using high-strength materials and go through strict quality inspections to ensure durability and operational safety.

We offer custom manufacturing services for non-standard parts based on customer drawings or specific requirements.

Our products meet international standards and are exported worldwide, earning the trust of clients across Asia, the Middle East, Europe, and beyond.

Why do crane parts need to be replaced regularly?

Over time, wear and tear can affect safety and performance — regular replacement ensures reliability.

Yes, we ensure continued availability of all key spare parts.

Yes, we can dispatch engineers for on-site installation or commissioning

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