We, SUNGWON Heavy Machinery, have been manufacturing and supplying rock,
soil drilling equipment and tools of DTH Hammers, Hammer Bits and Auger
Machines in Korea.
Percussion Rotary Drill
As a method that combines the S.D.A (Separation Doughnut Auger) method and T4 method, this method can be used for the boring of boulders and shore layers which are difficult to bore using the S.D.A method. In the case of working with the existing SDA method, a screw is fixed to the inner auger near the casing but a screw needs to be fixed to the fore-end using a T4 hammer with the PRD method, so that the boring of very difficult strata has been impossible. With our method, the boring of all strata, such as buried layers and boulder layers, is possible.