Used for testing crushed rock, crushed slag, crushed and uncrushed gravel for resistance to abrasion. Specifications: The machine consists of a hollow cylinder mounted horizontally on a study frame on ball bearings Compete with abrasive charge consisting of a set of hardened stainless steel balls, approximately 48mm dia It has an opening which can be closed with a dust tight cover to facilitate charging and discharging the drum with the material under test A revolution counter is fitted to the frame. • control panels: auto. Preset counter, stop and start push buttons. (optional at extra cost). A tray is supplied for collecting of the material at the end of the test A detachable shelf which extends throughout the inside length of the drum which catches the abrasive charge and does not allow it to fall on the cover The drum is rotated by an electric motor through a heavy reduction gear at a speed of 30-33 r.P.M Suitable for operation on 440 volts, 3 phase, 50 cycles, a.C. Supply. • all material parts are made of stainless steel except the frame. Optional accessories (optional at extra cost): • control panels: auto. Preset counter, stop and start push buttons.
