... winches are used spherical worm drive. 2,JD Series winches are used planetary gear drive winch ... , smooth operation, safe and reliable.JD series of major technical parameters of dispatching winch ... flexible operation, braking, reliable, low noise characteristics. JD Series winches are flameproof scheduling for the mine ... work.Model JD-1 (JD-11.4) JD-1.6 (JD-25) JD-2.5 (JD-40) JD-3 (JD-45) Traction ...