Description: Shutters: automatic control system can ensure the shutters open and close automatically, dustproof and waterproof. Motor: high-efficiency and energy-saving electromotors with protection grade,:IP55 and insulation class: F. Belt: automatic tensioning device can prevent the belt loosing and droping off. Type Biade diameter Blast volume Power Frame size Voltage Frequency ETXS-1000 1000MM 35000 0.75KW 1100*1100*450 380V 50HZ ETXS-1250 1250MM 42000 1.1KW 1380*1380*450 380V 50HZ ETXS-1400 1400MM 55800 1.5KW 1536*1536*450 380V 50HZ