1.Model:JC50DB Drawworks 2.All bearings are roller bearing, all shaft material are alloy steel. 3.the drum is grooved. The high speed end and low speed end of drum adopt pneumatic tube clutch. 4.The brake wheel steel using circulating water cooling, and the surface of medium frequency quenching, 5.Good abrasion resistance, long service life. 6.Convenience, safety assurance 7.lower weigth,noise output and vibration during operation
