The centrifuges are used for the determination of bitumen percentage in bituminous mixtures. All models comprise a removable precision-machined rotor bowl housed in a cylindrical aluminium box. The rotating unit is suspended on the base by four calibrated springs, which assure a perfect stability all over the test. The cover is precisely machined and fitted with solvent resistant gasket to avoid leakages. All models are fitted, for emergency use, by a hand brake system. The control panel includes: Start/Stop button, speed control knob. STANDARD: EN 12697-1, ASTM D2172,AASHTO T164A