Shandong production the the winch manufacturers damper winch specifications headstock-damper winch, the the throttle winch use models, mine damper winch, throttle winch manufacturers Hello, everybody, and now for me to explain to my company damper winch, my company damper winch JMB-1 , JMB-2, JMB-4, JMB-6 four kinds of models. For everyone to talk about the advantages of the Shandong coal damper winch: JMB open and close the damper winch for mine ventilating fan romantic the commutation when opening and closing the damper or gate. Damper winch can be electric but also a manual operation. The winches structure is simple, easy maintenance and reliable to use. Winch motor, electric control device with explosion-proof performance. We see the following models: JMB-1 JMB-2 JMB-4 JMB-6 Reel Diameter (mm): the width of the roll (mm) of 200 250 320 400 170 260 260 280 wire rope tension kn 10 20 40 60 rope diameter mm 11 15.5 19.5 22.5 rope speed m / s 0.09 0.072 0.066 0.077 Yung rope capacity m 8 12 11 14 Motor power kw 3 5.5 7.5 11 Dimensions (mm) 995 * 640 * 700 1840 * 750 * 820 1960 * 750 * 820 2248 * 986 * 1101 Weight kg 435 813 891 1280