This cnc machine is mainly used in the aluminum alloy curtain wall material, cutting material plan of window material, also available in cutting material plan to plastic profile. By using hard alloy saw blade, the outer diameter is 20", both its line speed and processing precision are high. When the machine bed works, the blades of double-head saws can carry on cutting simultaneously or separately. The saw blades can swing at any angle of 22.5°-0°-135°. In this machine bed, Japanese Panasonic NC system and feedback system of German ELGO original assemble, whose positioning precision is high, repeating positioning precision is about ±0.1 mm, Italy original assemble motor, whose cutting precision is high, and its stability is good, so they are more suitable for cutting at any angle for aluminum doors- window and aluminum curtain wall material.