2 tons damper winch, JMB-2 damper open and close the damper winch winch, mine damper winch, the damper winch price of the damper winch, throttle winch parameters damper winch manufacturers, since the company was founded in 1982, has been engaged in the production, sales, after-sales service for many years in the production of mining equipment at the class level for everyone to talk about the parameters: the JMB-damper winch: maximum tension (20KN) roll diameter 250 reel width 260 rope speed (0.072m / s) wire rope diameter (15.5mm) rope capacity the 12m motor power 5.5KW explain the scope of use: damper winch is to use a large fan in the mine the commutation, open or close the damper or gate solemn promise: product quality problems, the implementation of "three guarantees": A week or return; replacement within one month; six months for repair