Heavy-duty Vortex Mixer designed for repeated mixing of several samples at once. With  digital setting of speed and time. Orbit: 4.9mm. Operates under “touch” mode when cup head or holder is depressed with range 300 to 3500rpm, or “On” mode for continuous operation from 300 to 2500rpm. Also features a timer          which operates from 1 second to 160 hours. Maximum load 1.1kg. Supplied with cup head for single vessel mixing and universal holder with cover and foam insert for 38 x 1.5/2ml microtubes which is interchangeable with accessory inserts for other tube sizes. Overall W x D x H 168 x 241 x 160mm. Weight 6.8kg. For 230V 50/60Hz single phase supplies.