The BZC400XDF6 × 4III vehicle mounted water well drilling rig is a positive circulation rotary drilling rig. The drilling rig uses the Dongfeng 6 × 4 dedicated drilling rig chassis, model DFS1251GL18, with emission standards of National IV, and adopts 11.00R20 steel wire off-road tread tires with good off-road performance.

The drilling rig has a compact structure, and the chassis is produced by independent Yuchai Co., Ltd. The model YC6J220-33 diesel engine has a National IV emission standard, with a power of 162kw/2500rpm and strong power.

The drilling rig is equipped with a hydraulic double winch unit, and the main hydraulic winch can achieve the fast rope release function of the mechanical winch. The auxiliary hydraulic winch has the characteristics of high lifting force and fast lifting speed.

The hydraulic cylinder controls the advance and retreat of the wellhead card plate, closing the safety card plate to clamp or release the drill pipe joint.

◎ Pneumatic integrated design, realizing pneumatic remote control of BW850/2A mud pump clutch, high degree of automation, easy and labor-saving operation.

The drilling rig is equipped with 4 hydraulic support legs and 2 mechanical support legs. Each hydraulic leg cylinder piston rod is threaded and equipped with a locking nut, which can be used to lock the cylinder after the drilling rig is leveled. In this way, even if the oil cylinder leaks, the chassis will not become unstable.

The turntable is a lever type, with a spiral arc gear transmission inside, which transmits a large torque, twice that of similar drilling rigs at home and abroad.

Equipped with a 30kW generator and a clutch that can be disengaged when not in use, it provides convenience for driving water pumps, night lighting, welding maintenance, and household electricity at construction sites;

The hydraulic system adopts an open system, with separate loading and unloading operations to avoid misoperation. Equipped with winter oil temperature heater and summer oil temperature radiator to adapt to hydraulic oil heating and heat dissipation in different seasons.

This drilling rig is equipped with an auxiliary unloading rod oil cylinder, which is used to push the ratchet teeth of the rotary table, remove the first thread of the drill pipe joint, and then reverse the unloading rod with the rotary table to prevent damage to the drilling rig gearbox caused by impact force during unloading.