What is a DTH hammer?
A DTH (Down-The-Hole) hammer is a drilling tool used in the mining, quarrying, and construction industries for drilling holes in hard rock and other tough materials. It operates at the bottom of the drill string, directly impacting the rock or material to be drilled. Here ’ s a brief overview of how a DTH hammer works and its components: How a DTH Hammer Works 1. Compressed Air: Compressed air is supplied to the hammer through the drill string. 2. Impact Mechanism: The compressed air drives a piston inside the hammer, which repeatedly strikes the drill bit. 3. Rotation: Simultaneously, the drill string rotates, allowing the bit to cut into the rock. 4. Cuttings Removal: The same compressed air used for the hammer also helps to remove the cuttings from the hole, blowing them out to the surface. Key Components 1. Drill Bit : The cutting part of the hammer, made from hard materials like tungsten carbide to withstand the impact and abrasion. 2. Piston: The moving part inside the