Machining Tolerance of CNC Machinery

　　Machining tolerance of cnc machinery in general can be up to 0.05 - 0.1 MM. CNC machinery is according to the form of digital signal control, numerical control device every output a pulse signal. The machinery is moving parts move a pulse equivalent (0.001 MM), and machine tool feed drive chain of the reverse clearance and screw pitch error of the mean by the cnc device march compensation, therefore, the numerical control machine tool positioning accuracy is higher.

　　Of course, the size of the machine tool, the degree of old and new is also an important factor affecting the machining accuracy.Under normal circumstances, the precision of 0.03 can be guaranteed during our precision processing.