RETSCH offers a comprehensive programme of equipment for sample preparation of solids. Please ask for information on our crushers, mills, sample dividers, sieving machines, optical ... ULTRA CENTRIFUGAL MILL ZM 100 Article-No. Type ZM 100, 220 - 240 V, 50/60 Hz 20.822.0001 Type ZM 100, 110 - 115 V, 50/60 Hz 20.822.0002Web