Several common drilling machine: Impact drilling machine with rope to the impact of the new drill wells to drilling machine equipment, power plant driven by the impact mechanism and drive up and down the rope and impact drill, chisel and got crushed rock . This is an ancient method of drilling equipment is simple, low cost, but drilling and fishing ballast must alternate the new drilling machine picture, so slow drilling speed. Rotary drilling machine is powered by a turntable, drill pipe and drill together to drive rotary cutting, grinding and drilling geotechnical borehole with the drill continues to lengthen and deepen, with the circulating mud cuttings brought to the ground. It is faster than the speed of impact drilling machine drilling, and ease of handling the situation well collapse. Composite drilling machine is connected to the drill plus a red rotary drilling, promote the use of circulating liquid or gas drilling spindle rotation punch, while the impact of the drill movement and rotation of two broken rock and drilling. Achieve smaller models drill large holes, we mainly from the advantages of the following analysis of drilling machine, drilling machine in which the advantages of multi-function has the following aspects: First, a multi-purpose machine; second, the purchase of low-priced ; third, the reasons for its small size, small tonnage. Finally add that the advantages of having more than a series of multi-function drilling machine is using patented technology to produce small and medium sized crawler whole slew of versatile drilling machine. A multifunction machine, you can choose different specifications required drilling, pile diameter up to about 1800 mm; drink converted excavator drilling machines; the unique underground continuous wall structure can be quickly converted, according to soil structure can be pressurized drilling, punching hole, hit deep. Small tonnage, the unique patented drilling machine technology to achieve a high-torque power, enabling smaller models big pile hole drilling equipment can be freely converted, energy, reduce transportation costs. Buy low price. The machine adopts the original technology patents, to achieve a new type of multi-purpose machine drilling machine price, compared with the same type of machine efficiency, the price is very low. How to achieve multi drilling machine models drill small holes big pile? Concluded that the most extensive multi-purpose drilling machine use, it is more widely used in highway, railway bridges, municipal construction, railway, electricity and civilian support construction projects, and according to different geological conditions, quick change drill such as underground continuous wall grab can be used for dams, leaks and other projects, is to create wealth for your ideal equipment.