Stator lamination for large generator in wind power 

SINGLE SLOT NOTCHING When manually punching and punching, the production auxiliary work, such as loading, unloading, handling and sheet sorting, etc., the working time is far more than the punching time of the punching machine. This problem is more prominent when punching with double punching dies. At present, the outer diameter of the largest punching sheet we produce is as high as 1250mm, which is currently the largest width of silicon steel coil. In order to offset the tooth harmonics during the operation of the motor, the slots of the stator core or rotor core are often designed to be skewed, rotary notching is very suitable for the production of this type of motor lamination. WORKING PRINCIPLE In the process of single notching, the tool only cuts one slot on the round sheet at one time, which means that the total number of cuts is equal to the number of slots on the lamination. Most of our CNC single notching presses have a high precis…