Elshaddai s los angles abrasion machine functions as determining are resistance to bear of small size course aggregate and crushed rock specification the machine consistence of a hollow cylinder mounted one sturdy frame on ball bearings a detachable shelf which extends which stand through out the inside length of the drum catches the abrasive charge and dose not allow its two fall on the cover the drum is rotated at a speed of 30, 33rpm by an electric motor through a heavy duty reduction gear motor makes an excellent choice for operation on 220 volts, 50hz, 1p. H. Complete with a tray for collection of the materials with abrasive charge.