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Dorry AbrasionDorry Abrasion.BS : 812-1967

Item Code: UAT-603

For determination of the resistance of aggregates to surface wear by abrasion. The apparatus comprises the following

  • A circular disc mounted on a reduction gear driven by an electric motor at about 28-30 rpm.
  • Two large trays for holding the sample.
  • Two small trays for sample.
  • Two conical hoppers for sand.
  • Two sample try holders.
  • Two sets of weights for loading the samples.
  • A revolution counter.
Suitable for operation on 220 V, 50 Hz, single phase supply

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Deval Abrasion Tesing MachineDeval Abrasion Testing Machine

Item Code: UAT-604

eval Attrition Testing Machine IS : 2386 (part IV) - 1963

For determining the abrasion value of coarse aggregate. It consists of the following

  • Two hollow cast iron cylinders closed at one end and fitted with tightly fitting covers at the other and mounted on a shaft at an angle of 30o to the axis of the shaft. The cylinders are of 20 cm internal diameter and 34 cm deep.
  • A shaft adjusted to rotate at 30-33 rpm by reduction gear mechanism operated by a motor.
A revolution counter. Suitable for operation on 440 V, 50 Hz, 3 phase supply.

This machine used for determining the resistance of aggregate to wear by abrasion. Two specimen can be mounted simultaneously and then kept loaded by weights against a machined flat circular grinding surface. The grinding disc rotates at 28-30 r.p.m and two funnels release a continueous flow of operation on 230 Volts, Single phase 50 Cycles A.C. Supply fitted with starting switch.

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