The rock drilling principle of the DTH Hammer is the same as that of the heavy-duty rock drill. It is intermittently impacting the rock (ore) and it rotates continuously. The difference is the impact mechanism of the DTH drill. The DTH hammer is installed at the front end of the drill pipe, dives into the bottom of the hole, and the piston directly DTH Bit, and continues to advance with the extension of the drilling hole. The down-the-hole drilling rig is named after the impactor dives into the bottom of the hole. The drilling rig completes the impact action of the impact bit by the piston in the impact catch, and the rotary action is realized by the eye-turning mechanism.

　　The pressure regulating mechanism completes the section of the propulsive force to complete the drilling work efficiently. The lifting and amplitude adjustment of the drilling rig is completed by the mechanism, and various actions are controlled by the operating mechanism. The supporting mechanism can be a bracket or a drilling rig.

　　Debris (powder) formed during drilling. Then the gas or water flowing between the drill pipe and the hole wall is held out of the hole.

　　The DTH drilling rig is not like the drill rod drilling, the capacity loss increases with the increase of the drill rod joint. Because its drill stem does not transmit the impact energy, the impact energy loss is small, so it can drill deeper holes. Due to the impact When the drill goes deep into the hole, the noise of the working surface is greatly reduced, and the drilling accuracy is high.

　　DTH Hammer is widely used in blasting hole drilling and underwater drilling blasting reef engineering of open-pit projects such as metallurgy, mining, building materials, railways, hydropower construction, national defense construction, and earthwork.