Economic batch parts processing batch should be larger than the ordinary lathe numerical control car, numerical control grinder small batch parts processing, due to various reasons, the actual cutting time is only 10%, 10% of the working time. This type of grinding center in the process of paying more attention to numerical control grinder processing, the proportion will rise to 70%~ 70%, but the preparation of adjustment work time is often longer, so some will become uneconomical batch is too small.

Numerical control lathe processing of some special parts that some parts processing volume is small, but the ordinary lathe complex shape, high quality, need good interchangeability, which can not meet the above requirements of the numerical control grinder, can only be arranged in the numerical control grinder processing, such as parabola, cycloid cam and special type surface magic mirror magic mirror and so on.