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Dorry Abrasion Testing Machine
 
Dorry Abrasion Testing Machine is generally used to test the coarse aggregate abrasion resistance.

Specification:
  • It consists of a disc rotating about a shaft connected to a reduction gear box coupled to a motor
  • The disc rotates at 28-30 r.p.m.
  • Under the rotating disc is a tray with an outlet to facilitate the removal of sand
  • Two conical hoppers are mounted on a bracket fixed to the circular tray
  • Arrangements are made for start and stop the flow of sand
  • Two holes are provided for mounting two specimens simultaneously
  • Two containers with weights are supplied to keep the specimens pressed against the rotating disc.
  • Suitable for operation on 220 volts, 50 cycles, A.C. supply