1. Hard rail machine tools
Hard rail has larger sliding contact surface, good rigidity, strong anti-vibration capacity, strong load-bearing capacity, suitable for heavy load cutting. Hard rail is classified as dry friction, because the contact surface is large, making the friction resistance is also larger, and the moving speed cannot be too fast. Together with easy to crawl phenomenon, moving surface gaps will lead to processing fault. Machine tool track is the top priority of maintenance, once the track lubrication is not sufficient, it will cause track burn or wear transition, these are fatal injuries to the accuracy of the machine tool. The use of hard track CNC lathe is suitable for heavy cutting, large molds, high hardness workpieces, precision requirements of the general workpiece.
2. Line rail CNC machine tools
Now many machine tools work very fast, especially the air speed, which is largely dependent on the line rail; line rail can reach zero gap between the track through pre-tightening treatment, high precision; as far as the use of life, line rail is much higher than hard rail. Line rail to withstand cutting force related to the hard rail to be small, just for the hard rail, in fact, many machine tools now line rail has greatly improved its carrying capacity. The use of line rail CNC lathe is suitable for high-speed machine, can be high-speed cutting, suitable for processing products, small fine mold. Nowadays more fine processing centers use the line rail CNC lathe.
General description: Hard rail has high friction, high strength and high load capacity. Line rail friction is smaller smaller, the machine tool is responsive, but not as strong as hard rail.
