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Sinodrills DTH hammer bits
Construction Equipment in Cape Town

www.sinodrills.net
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Zhonghua North Road Guiyang. Tokai. Cape Town. Western Cape. 7945
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What you should know about Sinodrills DTH hammer bits

Construction Engineering in Cape Town, Construction in Cape Town, Drilling in Cape Town, Mining in Cape Town

Our products range is as follows:1, SD 5, QL 50, COP 52, 5" DTH hammer bits (130mm- 152mm): DHD 350/COP 54, Mach 44, XL 4, Mission 40, SD 4, QL 40, COP 42, 4" DTH hammer bits (105mm- 130mm): DHD 340/COP 44, Mach 303, BR 3, Mission 30, COP 32, COP 34, DTH hammer bits range:3" DTH hammer bits (90mm - 105mm): DHD 3.5, 2, Mission 80, SD 8, QL 80, 8" DTH hammer: DHD380, XL 6, Mission 60, SD 6, QL 60, COP 62, 6" DTH hammer: DHD 360/ COP 64, XL 5, Mission 50, SD 5, QL 50, COP 52, 5" DTH hammer: DHD 350/COP 54, Mach 44, XL 4, Mission 40, SD 4, QL 40, COP 42, 4" DTH hammer: DHD 340/COP 44, Mach 303, BR 3, Mission 30, COP 32, COP 34, DTH/ITH hammer range3" DTH hammer: DHD 3.5, Mission. We are specialized in supplying high quality DTH drilling products which is for mining, quarrying, well drilling and foundation drilling.

Associating strategically with five top class producers & manufacturers in China, we've involved in professional distribution and supplying in this field for many years. The down-the-hole drilling is used to produce large-diameter holes in rocks, usually in the initial stage prior to blasting, but it is also used in non-blasting applications. The DTH drilling method is growing in popularity, with increases in all application segments, including blast-hole, water well, foundation, oil & gas, cooling systems and drilling for heat exchange pumps. Applications were later found for the DTH method underground, where the direction of drilling is generally upwards instead of downwards. In DTH drilling, the hammer is located directly behind the drill bit. The drill pipes transmit the necessary feed force and rotation to hammer and bit plus compressed air for the hammer and flushing of cuttings. The drill pipes are added to the drill string successively behind the hammer as the hole gets deeper. The piston strikes the impact surface of the bit directly, while the hammer casing gives straight and stable guidance of the drill bit. This means that the impact energy does not have to pass through any joints at all. The impact energy therefore remains constant, regardless of the hole depth. In conjunction with DTH hammers, drill bits are designed with a splined drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes. Tubes play a significant role in all DTH drilling, regardless of application, rock type, hole depth or drill rig. The key features of a high quality DTH tube are durability, accuracy and manageability. ODEX/ Eccentrics overburden drilling system: The ODEX overburden drilling system utilizes an eccentric under reamer to cut a drilled hole ahead of the bottom of the casing. As the hole is advanced, the drill cuttings are normally removed by air and travel up the inside of the casing in the annular space between the casing ID and the drill rod OD. The ODEX method is highly effective in overburden soils where boulders or gravel layers are present, or when layers of rock must be penetrated. This method also subjects surficial and localized soils to some vibration. Symmetrix Overburden drilling system Symmetrix is a concentric drilling system with retrievable pilot bits. This system drills in any direction and in any type of ground condition. It is, in fact, the most flexible and efficient overburden system on the market today. How does the Symmetrix overburden drilling system work?
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