Jamshedji Construction Machinery Co. Supplies Electric Motor Surface Grinding Equipment. Jamshedji Construction Machinery Co. Is an ISO 9001: 2008 recognised company manufacturing a wide range of construction machines like pumps, mixers, cutters, rollers, rammers and vibrators. The Electric Motor Surface Grinding Equipment is powered by standard 3.0 H P electric motor and is used to grind the surface to make it wear resistance. The Electric Motor Surface Grinding Equipment comes fitted with Spare floating discs to remove surface undulations prior to finishing surface.