WZ series vortex brake for crane and metallurgical

WZ-series vortex brake for crane and metallurgical use conforms to JB7561-94 tandard----The technical condition for WZ-series vortex brake for crane and metallurgical. The vortex brake combines with YZR-series wire-wound and rotor motor, which can make drive and speed regulation in accordance with the control. (The range of speed regulation is up to 1:10 for opening, and 1:20 for closing.) It has advantages of stable low-speed regulation, no out-of-control zone and reliable running.

Electrical machinery performance：

1) The ambient temperature cannot exceed 40℃for class F insulated motor and 60℃ for class H insulated motor.
2) not above sea level 1000m.
3) Frequent and outstanding mechanical oscillation and strike.
4) The excited voltage of the vortex brake is 160±30V,D.C.
The normal duty of the vortex brake is S3. The normal ratio of loading is 15%.
Every working period is 10 minutes.
Technical data sheet shows the corresponding relationships of rated brake torque, limited brake torque, moment of inertia(Jm), excited current and frame.     

Model explanation：

Structure synopsis:

The degree of protection of enclosure for the eddy current brake is IP23, that of the terminal box is IP44, located on the top of the frame, the cooling method is IC0141, and type of construction and mounting arrangement is IM1001.