Motors For Crane

What is crane motor?

Crane motor is a part of gantry crane and overhead crane, which is a kind of equipment for electrical energy into mechanical energy. It is through the electric coil (i.e. stator winding) to produce a rotating magnetic field and its function in the form of rotary torque.

The crane motor is divided into DC crane motor and AC crane motor by using different power. The crane motor power system most of the AC crane motor can be synchronous or asynchronous crane motor.

The crane motor is mainly composed of stator and rotor, the direction of the force movement in the magnetic field is related to the current direction and the direction of the magnetic induction line. The principle of the crane motor is the effect of the magnetic field on the current force, so that the crane motor rotation.

Types of crane motors: Soft start crane motor, Three-in-one motor, Wound type motor

Crane motor types and advantages

In the crane field, the crane motor is AC three phase asynchronous motor.

Conical type rotor motor

This type crane motor is used for single girder overhead crane, double girder overhead crane, Single girder gantry crane, Jib crane.

The conical type three-phase asynchronous crane motor is the stator of the electric crane motor for the three-phase scattered type distribution winding. The rotor is a cage guide.

(a) Soft start type crane motor

Soft star type crane motor and application on overhead crane

Motor Brand: Nanjing special brand

Advantage of soft star type crane motor

1. Locked rotor current is smaller than other crane motors, which can prevent crane motor burning;

2. The starting current is small, it can improve the impact of the starting, the operation noise is small, and the service life of the main control AC contactor is prolonged;

3. It can adapt to frequent start, power saving effect is remarkable;

4. Achieve soft start, it can increase the crane frame and the life of the plant.

(b) Three-in-one type motor

Three-in-one motor and its application on EFM Electric hoist

Motor Brand: SZW/SEW/ABM

Advantages of Three-in-one-motor:

"Three in one" reducer crane motor is reducer, crane motor and brake in one, with the crane motor shaft parallel output, compact structure, large transmission torque, stable work, low noise, long life and so on.

Wound type crane motor

This type crane motor is used for double girder overhead crane and double girder gantry crane and electric winch.

The wound type three-phase asynchronous crane motor is the stator of the electric crane motor for the three-phase scattered type distribution winding. The rotor coil ends are not directly lead to short-circuit, but lead to the start control device of slip ring.

Wound type crane motor and its application on crane trolley

Motor brand: Jiamusi / New Dali

Advantage of wound type crane motor

Good starting performance (starting current is only 1.5 - 2.5 times rated current)

Large starting torque

Speed stability

If you need the crane and have some especial requirements for crane motor, contact me freely. We can design the crane drawing for you. Cotact us for more informaiton.