ASTM: D2172 AASHTO: T-58, T-164

Used for the determination of bitumen percentage in  bituminous mixtures. It consists of a removable, precision  machined aluminium rotor bowl (accessory 1500 or 3000 g  capacity), housed in a cylindrical aluminium box. The separate control panel incorporates an electronic card fitted with AC drive that automatically drives the bowl speed rotation ramp from 0 to 3600 R.P.M. as requested by Standards, with automatic fast stop bowl rotation at the end of the test. Supplied complete with speed regulator and digital display monitoring the frequency. Power supply: 230 V A.C. Single Phase