How to choose Rail for CNC cutting machine?

CNC cutting machine square rail and square hard rail, the linear rail is better than the hard rail in terms of accuracy and speed, but the hard rail is more advantageous in terms of rigidity, depending on which machine tool you use , According to different machine tool equipment structure purposes, the Rail styles used are also different.
The CNC cutting machine round rail is a cylindrical linear rail, which requires limited support, so the rigidity is poor. The bearing capacity is high and the accuracy is average. Due to its relatively low cost, short production cycle and easy installation, round rails have become a substitute for square linear rails in many occasions. The price of square rails is higher than that of circular rails, depending on the budget. And the industry and the precision requirements.
CNC cutting machine square rail product features:
Low friction resistance, can maintain accuracy for a long time. The rolling friction force of CNC cutting machine linear Rail can be reduced to 1/20~1/40 of sliding Rail friction resistance. Its lubrication structure is simple, easy to lubricate, excellent lubrication effect, friction contact The surface wears down, so the walking accuracy can be maintained for a long time.
The positioning accuracy is high, the reproducibility is good, the linear Rail rolling motion method, the friction coefficient is small, the difference between the static friction force and the dynamic friction force is very small, there will be no idling slip phenomenon even in the micro-feed, the analytical ability and heavy Good presentability, so it can achieve μm-level positioning accuracy.
It can bear high load capacity in four directions. The geometric mechanical structure design can bear radial, reverse radial and transverse loads at the same time, and maintain the walking accuracy. At the same time, it can be easily applied to the preload and the number of sliders. It can improve the performance and load capacity of CNC router. It is suitable for high-speed applications, with low frictional resistance, low driving horsepower requirements for equipment, large energy saving effect, low motion wear and low temperature rise effect, and can simultaneously achieve the requirements of mechanical miniaturization and high-speed.