Features : Low noise tri-lobe rotor Noise-reduction know-how application for casing Integral-shaft ductile iron impellors Dual splash lubrication Oversized cylindrical roller bearings Hardened teeth face for precision helical timing gear, taper-lock shaft mounting Versatile configuration Piston ring air seals Lip type viton oil seals Air cooling Automatic belt tensioner and integrated discharge silencer base frame application for the blowe