All contact parts SS 304 SS 316. Available in standard and GMP model. Shaft made from solid bar and SS pipe, 38” thick blade welded to the shaft and made as one piece. Shaft driven by oil filled worm gearbox and powered by suitable motor. Machine having polycarbonate unbreakable sliding cover. Drum tilt able by hand for removing the material, complete with cover lock switch to stop the machine just on opening the cover.