Email: sales@prodrill.com.cn
Tel:0086-18959243380
Addr: Room 805 C1 Wanda Plaza, No.5 Jinzhong Road, Huli District, Xiamen, China
DHD380 DTH Hammer
Down-the-hole (DH) drills consist of an DTH hammer DTH drill bit, and DTH drill rod. The slewing mechanism of the drilling rig drives the DTH drill to rotate, while the DTH hammer submerges into the hole, directly impacting the drill bit for drilling operations. High-pressure DTH hammer typically consist of front and rear connectors, inner and outer cylinders, a piston, and a check valve. Except for seals, the parts are primarily made of alloy steel bars, forgings, and seamless steel pipes. Major grades include: 35CrMo and 20CrMnMo (front and rear connectors), 20CrMo (inner cylinder), 42CrMo (outer cylinder), 20Ni4Mo, and 23CrNi3Mo (piston), etc. Because DTH drill bits are directly impacted by the piston, the stress state is complex, requiring strict processing. The drill bit body is made of materials such as 18~25CrNi3Mo, 22~25CrMnSiNi2Mo, 20CrNi4Mo, 24SiMnNi2CrMo, and 20Ni4Mo.
Rock drilling tools manufacturer Prodrill DTH hammers are available in sizes from 2" to 20" for Down The Hole hammer bits are available in sizes from 2" to 36", with all shanks, multiple face, and with a variety of tungsten carbide button styles to suit a wide variety of drilling conditions and rock formation.
ProDrill DTH hammer products offers a wide range of quality, versatile DTH hammers to interchangeable, or replace a number of leading industry manufacturers. Hammers are available for down hole and blast hole, water well, gas, mining applications and use in nearly all ground conditions. Most DTH hammers are designed for use with the industry's most common rock drill bits shank types such as DHD, QL, Cop, Mission, SD, Numa, BR.
DHD380-305mm
2 3/8'' Male - 2 7/8'' IF Female, 2 7/8'' IF male- 4 1/2'' Female
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