351 - 360 of 398
high air pressure dth drill bits
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... pressure series D) High efficiency high pressure series E) Reverse circulation series 2) Outside diameters: 61.2~275mm 3) Drilling diameter: 68...
2025-08-01 00:06:53
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...with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards.It is durable ...
2024-12-09 12:57:59
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8'' QL80 DHD380 SD8 Mission80 Down The Hole DTH Drill Hammer for Coal Mining Product description A down-the-hole drill, usually called DTH by most ...
2025-08-01 00:06:53
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...DTH Hammer without Foot Valve Type for Qre Mining or Well Drilling Product Advantages: 1.Avoid the problem happens on foot valve. Fracture...
2025-08-01 00:06:53
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...re the drilling medium, normally high pressure air,is passed between the outer and inner tubes down to the face of drilling bit where it is ...
2025-08-01 00:06:53
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... application, there are different hammer designs available, including the valveless and valved hammers, alongside multi-speed hammers which can ...
2025-08-01 00:06:53
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OD82mm DHD3.5 Down Hole Hammer For Water Well Drilling Product introduction: Down-the-hole rock tools (drilling tools) are rock drilling equipment ...
2024-12-09 13:08:23
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... pin Weight (less bit) 72kg (158lbs) Hole range 135mm-165mm Working pressure 10-25bar Impact rate at 1.7 Mpa 25Hz Recommended rotation speed 20-35 ...
2024-12-09 12:11:40
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Product Introduce: Reverse Circulation drilling,uses rods with inner and outer tubes, the drill cuttings are returned to surface inside the rods. High ...
2024-12-09 12:57:59
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... into a bore. It's a small jack hammer used to break hard rock into small particles that can be flushed away by the DTH hammer's air exhaust. The ...
2024-12-09 17:30:39
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