Henan Coal Mining Machinery Co., Ltd. is a Sino-American national production drilling of professional production company, is the country's largest production base of non-sparking. Founded in 1976. After decades of development, the company has Henan Shen Qiu Lianchi industrial parks and industrial areas of Anhui Yingshang two production bases. Existing staff 510 people, 20 senior engineers, 46 technicians, the company annual output value of 10 billion yuan, profits of 150 million yuan, won the government and society's recognition and praise. The Company has imported (Australia, Japan, Sweden assembled) advanced plasma cladding strengthen spark cutter production line 3, quenching furnace (Japan) line 1, hexagon finished soldering production line (Guiyang forging brazing factory), NC 45 sets of lathes and drilling machines, grinders, milling machines and other equipment, is the country's largest production base of non-sparking cutter. Series production of rock drilling tools, cut chisel series, drill series, chain series, drill series, link chain, connecting ring, tooth Block, seven rounds, injector, anchorage, liquid injection gun, universally praised by users. Cutter when cutting coal withstand high cyclic compressive stress, shear stress and shock loading, though the hardness of coal is high, but often encounter ore gangue and other hard materials, coal and rock cutting process due to friction , the impact will result in cutting tooth temperature, in such a complex work under working conditions cutter, cutter body requires both its wear and should have good impact resistance. Cutter blade generally use low-alloy structural steel. [42CrMo steel], high strength, high hardenability, toughness, deformation hardening at high temperatures and high creep rupture strength and other characteristics. 42CrMo steel after heat treatment, a higher fatigue limit and resistance to repeated shocks, low temperature impact toughness. Our teeth made of high quality cold-extruded 42CrMo steel, high density, no decarburization. CNC lathe guarantee the same size. Using a special heat treatment process, reaching 40-45 degrees, no surface oxidation. Cutter head using isothermal quenching, the hardness is not reduced. Carbide regular manufacturers using domestic production YG11C, quality and stability. In particular alloy used around the tip of the pure alloy to protect it. Hardness of 65 degrees or more. Compared with the traditional cutter has the following advantages: 1, long life, is the traditional cutter 4 - 5 times. 2, high efficiency coal cutter: is the old cutter 2.5 times. 3, coal pick good energy efficiency: Due to significant decline in the number of replacement, reducing machine downtime, reduce operating costs.