LHS Rock Tools

Threaded connection bit

Threaded connection bit (also known as threaded connection bit) is a kind of rock drilling tool, mainly used to drill holes in the rock. In the process of rock drilling, the drilling tool group composed of drill bit, drill rod, connecting sleeve and drill tail transmits the impact work of the rock drill, and the drill bit directly drills the rock. Threaded connection drill bit has the characteristics of reliable connection and high energy transfer efficiency. It is mainly used with high frequency and large impact rock drill, and is used in underground mining, anchoring, mining, open pit mining, tunneling, quarrying and other fields.

Threaded connection drill bit classification: thread drill bit is composed of hard alloy and brazing body, according to the alloy form is divided into column tooth type drill bit, flake drill bit. According to the form of drill head pants can be divided into ordinary design type, easy to return concave core design type, reaming design type. According to the solid tooth process is divided into hot insert process, cold pressing process, welding process.

The production process of thread connection drill bit: steel incoming inspection-steel blanking-processing of pants body-processing of threads-heat treatment of pants body-drilling of tooth holes-alloy teeth-anti-corrosion treatment-product inspection-packaging and warehousing

Common specifications and models of thread connection drill bits: common diameter sizes of thread connection drill bits are 35mm,38mm,41mm,43mm,45mm,48mm,51mm,54mm,57mm,64mm,76mm,89mm,102mm,115mm,118mm,127mm,140mm,152mm.

Common thread forms include R thread drill bit R22.R25.R28.R32.TR35.R35.R38 thread connection drill bit, which is mainly used in small diameter drill bit and matched with low power rock drilling equipment. T thread drill bit T38.T45.T51.T60 thread, T thread connection drill bit general application of large diameter thread connection drill bit. ST58 ,ST68.EL60.EL68 threads are used for large-diameter thread connection drill bits, supporting high-power rock drilling equipment.

Lianhuashan drilling tool factory was established in 1969. In the 1990 s, China's drilling tool industry was the first to introduce European hot-setting technology for thread column tooth drill bits. In 1995, China was the first in the same industry to pass ISO quality management system certification. In 1989, China was the first to export thread column tooth products to the international market. By 2022, the production, sales and export volume of rock drilling tools had ranked first in China for 35 consecutive years.

In China, Lianhuashan drilling tools have become long-term partners of national large-scale mines, key projects, large-scale professional mining enterprises and leading rock drilling equipment enterprises (WISCO, Shougang, Minmetals Group, Three Gorges Project, Jinchengxin, Hongda Blasting, Jiangxi Xintong, Xuanhua Huatai, Xugong Group), with strong brand influence. Internationally, Lianhuashan drilling tools have become long-term partners of more than 100 customers in 56 countries and regions around the world, of which Australia has a market share of more than 10%. Lianhuashan drilling tools are becoming a Chinese drilling tool brand generally trusted by customers all over the world.

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