There are more and more requirements for product processing, and many have composite processing requirements. Compound processing often requires several different equipment to perform a series of processing procedures at the same time, so it often seems inconvenient to operate.

Later appeared a special numerical control equipment, which corresponds to multi-process capability, which can be operated continuously and completed independently during composite processing. The hope of multi-variety and small-batch products for composite processing is that through the integration of processes, the overall time from material input to product processing is greatly shortened.

Under normal circumstances, the production of multiple varieties and small batches, the entire production process takes much longer than the actual processing time of the workpiece, the factory's fixed costs are mostly charged on the entire processing cycle. It can also be said that according to different processing materials, the factory only produces added value within the time of processing products of different shapes, and the movement between the processes and the waiting of the processes are the time to lose value. In this way, the purpose of compound processing is to increase the value-added time of the entire production cycle.

With this numerical control equipment, compound processing can shorten the entire rationalized processing process of multi-species and small batch production. In addition, due to the small batch size of the overall product, the mass production method of the dedicated production line is out of date.