This machine is for determining the resistance to wear off small size coarse aggregates and crushed rock. The machine consists of a hollow cylinder, mounted on a sturdy frame on ball bearings. A detachable shelf which extends throughout the inside length of the drum 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 duty reduction gear. Note : Drums are available in different sizes.

Can be used for many applications like gel staining, culture aeration, bathing, blotting membranes etc. A metal platform with non-slip rubber mat moves in a gentle. ‘See Saw’ motion. The movement is controlled precisely with a DC motor. Cushion and rubber feet prevent unit from ‘slipping’. Variable speed regulator. Optional: Digital RPM Indicator Mechanical Timer OR Digital Timer