1. Using high quality ordinary cast iron material.
2, two, two jaw parallel jaw on rail verticality is less than or equal to 0.03mm/100mm.
3 、 widely used in milling machine, rocker drill, drilling machine and so on, carry out various plane, groove, angle, hole and so on.
The working principle of rotating machine vise: screw wrench, drive the movable clamp body moves through the screw nut is formed on the workpiece and loosen up. Machine vise assembly structure is threaded connecting the removable pin and iron fit connection; linear motion of the movable clamp body is changed by spiral motion; the working surface is the friction surface of screw, guide and clearance of shaft and hole. Machine vise design features: concise and compact structure, strong clamping force, easy to operate. The inner nut is usually made of strong metal material, so that the clamping force is kept larger, usually with a chassis, the chassis with 180 degrees of scale line can rotate 360 degrees plane.