Lianhuashan Rock Tools (Hereinafter referred as LHS) is one of the leading comprehensive drilling tool manufacturers in China
CURRENTLY, CHINA'S DRILLING TOOL MANUFACTURING ENTERPRISES WITH STRONG COMPREHENSIVE CAPABILITIES
LHS was founded in 1969 and was originally affiliated with the China Nonferrous Metals Industry Corporation under the Ministry of Metallurgical Industry. In 2003, LHS was restructured from a state-owned enterprise into a private limited company.
LHS is located in Huludao, Liaoning Province, China, covering an area of 140,000 square meters. LHS has a fully digitalized production line for a complete range of threaded and down-the-hole drilling tools. In 1987, LHS became the first company in Chinese drilling tool industry to export products to the international market and passed the ISO9001 international quality management system as the first one in the same industry in 1995. By 2025, LHS had been the leading exporter of drilling tools in China for 37 consecutive years.
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One of the leading comprehensive drilling tool manufacturers in China
Thread products
Taper Products
DTH Products
hydraulic rock drill
Blast Furnace Products
Product Application
APPLICATION AREA
Open-pit mining drilling and blasting operations commonly used drilling products have thread drilling products, down-the-hole drilling products. Among them, thread drilling tool products, thread drilling head, thread drilling rod, drilling tail, connecting sleeve and other complete sets of drilling tools produce commonly used thread T38, T45, T51, T60, ST58, ST68, EL60, EL68 and other thread forms. Down-the-hole products include high wind pressure and medium and low wind pressure down-the-hole drill bits, down-the-hole impactors, down-the-hole drill products, joints and accessories, etc.
Common drilling products for underground excavation and mining drilling and blasting operations include thread drilling products and taper drilling products. Thread drilling tool products include a full set of drilling tool products such as thread column tooth drill bit, thread drill rod, drill tail, connecting sleeve, etc. Common thread connection forms include R32, TR32, R38, T38, etc. Taper products include taper drill rod and taper drill bit.
Commonly used drilling tools for underground medium-deep hole mining and blasting operations include thread drilling tools, including thread drilling tools, thread drilling rods, drill tails, connecting sleeves and other complete sets of drilling tools. Common thread forms are R3212, T38, T45, T51 and other thread forms.
Open-pit mining drilling and blasting operations commonly used drilling products have thread drilling products, down-the-hole drilling products. Among them, thread drilling tool products, thread drilling head, thread drilling rod, drilling tail, connecting sleeve and other complete drilling tool products, commonly used thread T38, T45, T51, T60, ST58, ST68, EL60, EL68 and other thread forms. DTH products include high wind pressure and medium and low wind pressure DTH drill bits, DTH impactors, DTH drill pipes, joints and accessories.
The main applications of drilling and blasting operations in hydropower projects are threaded connection drilling tools, taper drilling tools and down-the-hole drilling tools. Thread drilling tools include a full set of drilling tool products such as thread column tooth drill bit, thread drill rod, drill tail, connecting sleeve, etc.; DTH products include high wind pressure and medium and low wind pressure DTH drill bit, DTH impactor, DTH drill pipe, joints and accessories, etc.; taper includes taper drill rod, taper drill bit products, etc.
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