1. General
Water well Drilling Rig model SPC-300D is a truck mounted rig for rotary drilling, with all its components are mounted on the "DONG FENG" brand truck and powered by its engine. The drilling rig is of a main mechanical drive. The rig is mechanically driven with on part being mechanical.
For rotary drilling, mud is used as flushing fluid (positive cycle). As the beginning of boring, pressuring mechanism may be used for drill tool to effect pressuring drilling, thus promoting the efficiency of shallow --hole drilling. With the increased depth, when the weight of the drill tool is greater than the pressure required apply the drill tool, the main hoisting system should be used to carry out reduced-pressure drilling.
The drilling rig is provided with one main hoist and tow secondary hoists. The drilling rig are equipped four jacks to reduce physical labour and improve install efficiency.
2. Main characteristics and Applications
This drilling rig features in best maneuver ability, compact construction, high integrity, economical transportation, and simple operation, Reliable transmission, high versatility and efficiency. After loosening the first turn of thread of the lock joint with the aid of breakout-gun cylinder, the drill pipe can be rotated in clockwise or counter-clockwise direction by the rotary table to reduce greatly the labour intensity and prolong service life of the component parts.
In order to improve efficiency of drilling, This drilling rig is equipped with related drilling tool that can be applied various advanced drilling technology.
The drilling rig may be used for drilling in quaternary period stratum and matrix. Rotary drilling can be made right with a depth of 300m. And bore diameter of 500mm.
3. Technical Specifications
(1)base data
A. Drilling depth. 200-300m
B. Diameter of bore hole 500mm
C. Max. Through hole diameter
Of rotary table 505mm
D. Drill pipe
Driving Kelly 110*110*7500mm
In-hole drill pope 89*6000mm
E. Mast
Height 11m
Max. Load 15T
Front inclination 3°
F. Physical dimensions(L*W*H) 10850*2470*3850mm
G. Total weight 13.9T
(2)Power see instructions of the truck
(3)Main parameters
1. Torque and out put speed of rotary table (The data is based on a transmission power of 30HP)
Description Clockwise(RPM) Counter-clockwise(RPM)
Gear shift 1 2 3
Rotation speed(RPM) 52 78 123 40
Torque(N. M) 4047.4 2695 1715 5262.6
