Deval Attrition Testing Machine

NF P18-577, ASTM D2-33

For determination of the resistance of aggregates to wear by abrasion.

It consists of two hollow cylinders closed at one end and provided with tight-fitting covers at either end.

These cylinders are mounted on a shaft at an angle of 30 degrees with the axis of rotation of the shaft.

The shaft rotates at 30-33 r.p.m. through a reduction gear operated by a motor and is provided with a revolution counter.

Complete with abrasive charges consisting of 12 Nos. Hardened steel ball of 48mm dia.

Suitable for operation on 220 volts, 1 phase, 50 cycles. A.C.supply