The Centrifuges are used for the determination of the bitumen percentage in bituminous mixtures. All models comprise a removable precision-machined rotor bowl housed in a cylindrical aluminum box. They are driven by an electric motor fit with AC drive (inverter) with the double function of speed control up to 3600 rpm. regardless of the frequency (50 or 60 Hz) and electrical braking. The centrifuge can be set for the automatic speed ramp up to 3600 rpm. or to any intermediate speed by the front knob. A digital display monitors the frequency, which is proportional to the speed.
