Features
1. Truck
The SPJC-400 water well drilling rig is truck mounted. All components are mounted on a Sinotruck 8x4 special truck, including transfer case, main transmission system, gearbox, two winches, mud pump, rotary table, mast, wire rope feed mechanism, etc.

2. Direct Circulation Mud Rotary Drilling
The rotary drilling rig mainly uses direct circulation mud rotary drilling method. It is provided with the BW850/2A type mud pump. Drilling fluid is pumped down the drill pipe and out through drill bit. The fluid then flows up the annular space carrying cuttings to the surface. Equipped with proper tools, it is also suitable for other drilling process.

3. Dual Power
Truck engine offers needed power for truck traveling and well drilling. A 55kW electric motor and electrical control system is another source of power. According to driller requirements, a MF three-phase AC generating set can be optionally mounted to power night lighting or welding.

4. High Drilling Efficiency
Depending on double hydraulic winches, mast pulleys and hoisting rings, drilling efficiency goes up even in the toughest formations such as mudstone, heavily weathered rock, base rock, etc.

5. Mechanical, Hydraulic and Pneumatic Control
Mechanical drive is the main drive method of the water well drilling rig, with mast, six balancing legs and four leveling legs hydraulically controlled, and two mechanical legs, transfer case and mud pump clutch system pneumatically controlled.

6. Wide Applications
With large rotary table torque and fast drilling, the truck mounted water well drilling rig has found wide applications in farm irrigation and water conservancy projects, industrial deep well drilling, national defense construction, hydrologic exploration, geothermal drilling and foundation drilling.

7. Multiple Drilling Processes Available
Based on user requirements, the drilling rig can be equipped with some components or drilling tools for various drilling processes. For example, it can be equipped with SULLAIR, Atlas and other best in class air compressor to conduct air operated DTH drilling, fitted with dual-use water swivel, special drill pipe, gas-water separator, etc. for gas lift reverse circulation drilling, provided with hydraulic DTH hammer and mud pump for hydraulic DTH drilling and offer other drilling tools for core drilling.