Machining center is a good hard rail or line rail, first of all, we must first understand what these two things in the end, the hard rail refers to the guide and bed is a one-piece casting, and then processed on the basis of the casting of the guide, the line rail usually refers to the rolling guide, can also be called a linear guide. Usually by the slide and slide two parts, in fact, the hard rail and the line rail there is nothing good to say, can only say that appropriate or inappropriate, because their processing focus is not the same, the hard rail is more suitable for heavy cutting, such as large-scale moulds and high hardness of the workpiece, suitable for the general requirements of the dimensional accuracy of the workpiece, that the characteristics of the line rail, that is, high-speed cutting is suitable for the processing of precision parts and small precision moulds, the line rail is suitable for the processing of precision parts and small precision moulds. Of course, there is a special machining centre called two line a hard, it's x and y-axis using the line rail, z-axis using the hard rail, that it is faster, the Z-axis rigidity is good, and the application is also more widely used, in addition to do molds can also do products, although the productivity will be a little slower than pure line rail machining centre, but the quality of products processed out of the product will not be too much difference.

Machining centers are also divided into vertical machining centers and horizontal machining centre.

