Dth Water Well Drilling Hammer Dhd350

A rotation drill rig, air compressor and the "DTH drill string" are the essential unit for DTH drilling while the "DTH drill string" is always made up of DTH drill rods, DTH hammer and DTH bits. As one of key component, the DTH hammer acts as a role of converting the air pressure to the impact energy, simultaneously transferring impact energy and rotation force to DTH bits. The optimum range of hole size for blast hole drilling with DTH is 90 mm to 254 mm (3 -10). Smaller blast holes are generally drilled using tophammer, and larger holes generally use rotary machines. In other applications, like foundation drilling, DTH hammers can be used with single bit in hole sizes up to . 750 mm (30). With multiple hammer units CD (Cluster drills) drill holes up to 70 or 1778 mm. As a rule of thumb, the smallest hole diameter a DTH hammer can drill is its nominal size. A 4 inch hammer will drill a 4 inch (102 mm) hole. The limiting factor is the outside diameter of the hammer, because, as hole diameter reduces, airflow is restricted. Maximum hole size for production drilling is the nominal hammer size plus 1 inch, so for a 4 inch hammer the maximum hole size is 5 inch (127-130 mm). Choosing the right hammer is largely determined by hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just enough space for cuttings to evacuate the hole.

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Buyer: Used drill bits and drill pipes, tubing, casing

Shandong Ruilong Drilling Technology Co.,Ltd. (hereinafter referred as YK drill) is a professional manufacturer of mining equipment and rock drilling tools. As a young and developing enterprise, YK drill is located in Linqing City of Shandong Province. Main distribution scope of YK drill includes full range of rock drilling tools for top-hammer open mine drilling, under-ground long-hole drilling, top-hammer tunnel drilling and rock bolt anchoring. The full range rock drilling tools include hydraulic drilling tools, DTH drilling tools, tapered equipment and drilling tools for under-ground long-hole drill rigs; the hydraulic drilling tools include drill rods, drill bits, couplings, shank adapters, hydraulic drifters and thereof spare parts. DTH drilling tools include DTH hammers, DTH bits and DTH drill pipes of high pressure, middle pressure and low pressure. The tapered equipment include high-quality tapered button bits, tapered chisel bits, tapered cross bits, tapered rods and integral rods. The distribution network of RL drill includes more than 20 Provinces, autonomous regions and municipalities in domestic marker, and more than 20 countries like Australia, America, Canada, Finland, Germany, Japan, South Africa, Chile and so on around the world. YK drill looks forward to cooperating sincerely with clients all over the world.

OEM production as per you demand Type:Low air pressure,Medium air pressure,High air pressure Connect thread:API 2 3/8"REG,API 3 1/2"REG,API 4 1/2"REG,API 6 5/8" REG Connect with DTH bit:Same shank,DHD 340/350/360/380,QL 40/50/60/80

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DTH hammer is one of our main products.It strictly matches with API standard and other Chinese industry standards.It is durable for being produced with advanced craftwork and good material.It also has the following advantages: First,Can be used in hard rock application. Second,it Can work on low to high pressure radius. Third,High rate of penetration while utilizing less air.

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