TDD,born for drilling. 

TDD group have been focusing on DTH drilling for 16 years. We are specialized in manufacturing various DTH drilling hammers、matched drilling bits、drilling rigs and drilling pipes for water wells、mines and oil industries.

TDD has been promoting productivity in drilling industry, SPM ensure the safety and stability of drilling engineering, and provide professional, efficient and reliable whole drilling solutions. 

TDD have made tremendous development at the basic of high-quality, low price, good service since its establishment. All friends both at home and abroad are warmly welcomed to come here to establish and develop business relationship with us. 

TDD high pressure DTH drill is a kind of drill that is used together with the DTH. The drilling work is carried out by the spline and the impactor. Made from high quality steel and cemented carbide as a raw material, a special heat treatment process allows a ball-bit to withstand the need for rock drills with a high degree of hardness and minimizes losses during energy transfer. Tooth evenly and not easy off tooth and off the tooth, so that the impact energy can be concentrated on the rock, to achieve efficient tunneling purposes. Mainly used for geological exploration, coal mines, water conservancy and hydropower, roads, railways, bridges, construction and construction.