1.keeping bracket is installed on the hoist to form a double wheel support structure, can withstanda strong blow. 2.Vertical box four couple of bearings positioned to ensure the rotary machine has a sufficient rigid response to gravel layer, the complex geological conditions. 3.This machine adopts national patent technology taper clutch,with charactristics of strong transmission torque, easy to operation, free to maintenance. 4.53x59 driving lever is adopted, high rigitidy, strong delivery torque.
