BZT600 drilling rig is installed on a trailer together with diesel generator, large displacement piston pump, double-hoist, turntable, drilling tower, auxiliary unloading cylinder and other components. It can be traction through tractor or truck. It is installed 4 hydraulic legs and 2 mechanical legs, every hydraulic leg rod with locknut. After leveling the rig, it can lock the cylinder use locknut. So, even if the cylinder leaks, the chassis is not instability. This drilling rig equipped with an auxiliary unloading cylinder, it can be used to promote the turntable ratchet, to achieve auxiliary unloading the drill pipe. The appearance of rig is pretty, it has a high efficiency because of having a larger torque of the turntable, it is mainly used for water well, construction, national defense building foundation, geological exploration, geothermic well and other foundation working, it is popular with domestic and foreign clients.