Do you understand the market situation of DTH drilling tools in China?

2024-04-11 10:34

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DTH drilling tools are impact drilling tools. Over the past decade, the development of DTH drilling tools in China has been very rapid, with many excellent enterprises developing and forming a large-scale production system.

DTH drilling tools have a wide range of applications, and in China, they are generally divided into two types: low air pressure DTH drilling tools and medium-high air pressure DTH drilling tools.

Low air pressure DTH drilling tool bits

The annual output of low air pressure DTH drilling tool bits of domestic bit enterprises in China is about 3 million pieces, mainly with a diameter of 90mm, and the main types are 9-buttons and 10- buttons bits. The alloy tooth sizes are 1117, 1217, 1318 (mm), etc. The alloy consumption per bit is about 240g, and the annual consumption of alloy is about 700 tons. Since low air pressure drilling tool bits bear relatively small output impact power and the performance requirements for hard alloys are not very high, and due to fierce market price competition, production enterprises choose to use hard alloy teeth produced with medium and low-grade tungsten carbide powder to reduce costs.

Medium-high air pressure DTH drilling tool bits

The annual output of medium-high air pressure DTH drilling tool bits of domestic bit enterprises in China is about 500,000 pieces, with a diameter mainly ranging from 115mm to 165mm, and fewer with a diameter above 200mm. The number of buttons of the bits is mainly 15, 16, 18, and 20, and the main alloy button sizes are 1422 and 1622 (mm). The alloy consumption per bit is close to about 1 kg, and the annual consumption of alloy is about 500 tons.

In addition to drilling and blasting holes, DTH drilling bits are also used in geological exploration, water well digging, foundation pile drilling, and support anchoring and other engineering fields with diameters exceeding 8 inches. The largest diameter of the drill bit can reach 1.2 meters, making it a product with great market development potential.