Maximum speed 1500rpm. Maximum volume stirred 15 litres per position (in a 20 litre flask). With stainless steel top plate 550 x 210mm, separate speed controls, fittings for retort rods at the rear of the case and 3 x 25mm PTFE coated followers. Overall 600 x 270 x 110mm W x D x H. Weight 7kg. For 230V 50Hz single phase supplies.