For determining Stripping value of bituminous mixes having aggregate size 1.0 mm to 75 microns. Specifications :A circular tray rotates in a vertical plane at a rate of approximately 100 r.p.m. by an electrical geared motor. 4 bottles of approximately 400 cc are mounted on this circular tray at an angle of 90 degree to each with their mouth towards center of the tray. A time switch is provided.Suitable for operation on 230 volts A.C. single phase.