The machine consists of a hollow cylinder mounted horizontally on a study frame on ball bearings.
There is an opening which can be closed with a dust tight cover to facilitate charging and discharging the drum with the material under test.
The drum is rotated by an electric motor through a heavy reduction gear at a speed of 30-33 R.P.M.
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.
A revolution counter is fitted to the frame. A tray is supplied for collection of the material at the end of the test.
Suitable for operation on 440 V, 3 Phase, 50 cycles, A.C. Supply.
Complete with Abrasive Charge consisting of a set of Twelve hardened steel balls, approximately 48mm dia.
Standards: IS 2386 (PART IV) ASTM C 131, AASHTO T-96
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