adopted particular structure of triangular cylindrical sliding track, for high strength and rigidity. Move smoothly, stepless speed adjusting available, no creeping, the blade retract quickly, save non-production time. Operate easily, adjust size accurately, milling precision≤0. 1mm. With 4 pieces of milling cutters to mill out right workpiece one time. 4 pieces of milling cutters are installed in axes of 3 main exectromotors, can adjust the height to fit for aluminum material. The workbench is large enough to mill 10~12 pieces profiles one time, high efficiency. With one cutting blade. 3 electromotors star up independently, could be selected as per workpieces’ requirement. 38-90 series aluminum profile, heat insulation material and curtain wall profile could be milled. Pneumatic spray mist blade lubrication coolant system.