Applications
The rotary table of this truck mounted drilling rig comes with large torque and as a result the drill equipment makes a hole quickly. Currently, our vehicle mounted drilling rig has found applications in water conservation projects, the drilling of industrial deep well, conventional water well and geothermal well, etc., and national defense fields, to name a few. It is applicable for drilling into clay, sand, bed rock, basalt strata, and more.
Design advantages
1. NYC-350DF is a kind of rotary drilling machine designed for drilling water wells, and more.
2. This truck mounted drilling rig is equipped with DONGFENG special truck chassis, and the transfer case, main drive, gearbox, dual-winch, slurry pump, rotary table, drill tower and steel wire feeding system are all mounted on the chassis.
3. Driving systems
This water well drilling rig is primarily mechanical driven. The drill tower and the four levelling legs are hydraulically controlled. The transfer case and the slurry pump's valves are pneumatically controlled.
4. Drilling method
A standard NYC-350DF drilling equipment adopts directional circulation drilling method. Equipped with BW850/2A slurry pump, it adopts slurry as the drilling fluid, and finally achieves direct circulation drilling with the help of the high pressure plunger pump.
If equipped with proper drilling tools, the drilling rig can also achieve other drilling methods.
5. NYC-350DF is equipped with dual-winch and drill tower pulley block, etc. which functions to increase the drilling pressure and assists the water well drilling rig in drilling into mud rock, and bed rock, etc. This design is very effective in improving drilling efficiency.
6. Power system
NYC-350DF truck mounted drilling rigs has two different diesel engines, one 139kw cummins diesel engine for chassis, and the 97kw cummins diesel engine for drilling rig.
Configuration options
1. According to customers' requirements, our truck mounted drilling rig can be equipped with air compressors from different manufacturers, like America's SULLAIR, Sweden's ATLAS COPCO, China's KaiShan Group and HongWuHuan Group. Thus, the equipment can achieve pneumatic down-the-hole hammer drilling.
2. If equipped with air water separator, dual-wall drill pipe and other related devices, the rotary drilling rig is also able to achieve reverse circulation drilling.
3. If equipped with drill tools like hydraulic down-the-hole hammer, and 850/2A mud pump, the vehicle mounted drilling rig can realize hydraulic DTH drilling.
Technical specifications
Drilling depth (M) 300-350
Borehole diameter (mm) 500
Rotary table speed (r/min) 50; 75; 114 (reverse)
Rotary table torque (KN.m) 13.2; 8.8; 5.8 (reverse)
Pull force of the main winch (with single winch rope) (KN) 30
Max. pull force of the main winch (KN) 180
Pull force of the auxiliary winch (with single winch rope) (KN) 30
Max. pull force of the auxiliary winch (KN) 120
Elevating capacity of the hook (KN) 180
Carrying capacity of the drill tower (KN) 180
Drill tower height (mm) 11900
Load bearing capacity (t) 25
Drill stem Main drill stem (mm) 108×108×7500
 Second drill stem (mm) Ф89×10×5500
Drilling engine Model Cummins 6BT5.9-C130
 Power(kw) 97
 Speed (r/min) 2200
Hydraulic oil pump Model CB-HP50/32Z
 Capacity (ml/r) 50/32
 Rated speed (r/min) 2000
 Rated pressure (MPa) 20
BW850/2A slurry pump / mud pump Cylinder sleeve diameter (mm) 150
 Piston travel (mm) 180
 Theoretical flow rate (L/min) 600　　　　850
 Rated pressure (Mpa) 3　　　　　　2
 Stroke frequency (min-1) 58　　　　　82
 Suction pipe diameter (mm) 127
 Drain pipe diameter (mm) 64
 Rotation speed (r/min) 470
 Input power (kw) 40
 Overall dimension (mm) 2000×1030×1400
 Weight (t) 1.5

Chassis Model DFS1251GLJ8
 Drive type 6×4
 Engine Model and type Cummins B190 33 water cooled, 6-stroke, intercooled supercharged diesel engine
  Rated power (KW) 139
  Rotation speed (r/min) 2500
 Overall dimension (L×W×H)(mm) 10150×2480×3030
 Tire 11.00R20
Optimum gear of the gearbox in driving cab (rotation speed) 5th gear (1000-1400r/min)
Max. truck travel speed (Km/h) 75
Weight (kg) 22520
Transport dimensions (L×W×H) (mm) 12400*2480*3700
Overall dimension (L×W×H) (mm) 10900*4500*13600