QL60 DTH Hammer

DTH hammer

DTH hammer is an integral part of the downhole drilling rig and belongs to the working device of the downhole drilling rig. DTH hammer is divided into low-pressure DTH hammer,middle air pressure DTH hammer and high pressure DTH hammer.

The working principle of the DTH hammer: when the impact stroke begins, the piston and the valve are in the pole position, the pressure gas goes into the cylinder cavity through the radial hole of the valve cover and the valve seat, pushing the piston high-speed downward movement impact the drill bits. When the piston row to the bushing of the spline groove is closed, the lower chamber pressure began to rise, so the upper hole of the piston from the air distribution rod, so that the centre bore over pistons leaves the valve stem,make the upper chamber pass through the atmosphere, the pressure is reduced, the working stroke ends. When the piston impact the  drill tail, the valve due to its upper and lower pressure difference, starting reversing, the piston repeated return stroke movement.

We supply many series of the hammer,QL60DTH hammer,COP34 DTH hammer,CIR90 DTH hammer,etc.

We supply many series of the hammer,QL60DTH hammer,COP34 DTH hammer,CIR90 DTH hammer,etc.