OEM Motor Generator Core Laminations And Stampings

SINGLE SLOT NOTCHING

Several punching machines or grooving machines are arranged in a line, and are connected by guide grooves or automatic conveying devices. Such as the "triple punching and rotor punching processing line" composed of three punching machines. Many domestic factories have promoted and applied this achievement.

1250mm is currently the largest width of silicon steel coil and the outer diameter of the largest punching sheet we produce. On account of the tooth harmonics during the operation of the motor need to be offset, the slots of the Stator Core or Rotor Core are usually designed to be skewed, rotary notching is a very good technology for the production of this type of Motor Lamination, and is quite useful for the designs of large size motors.    

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. All of our CNC single notching press have a high precision positioning system and indexer, which can control every action of the machine and allows us to produce some very special laminations.

APPLICATION & COST

Single notching is very suitable for low-to-medium volume production or prototype development, the tool cost of it is quite low. Its production speed is relatively slow, and the time to produce a lamination varies from a few seconds to tens of seconds. However, more than half of our CNC presses are equipped with automated production systems. These devices can greatly reduce production costs while ensuring production speed.

There are not too many types of slots on the stator or Rotor Lamination, and each slot needs a specific tool to stamp. The good thing is that the overall cost of the tool is not expensive and the production time of the mold is very short, just need one or two days.