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China, Chinese DTH Rock Drilling DTH Bits -DHD, SD, Mission, Ql, Mach, Br, Numa1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Products Details Supplier Manufacturer price list catalog
Drilling ToolsSDMissionQlMachBrNumaDTH BitDHD Cop Ql XL SD Mach Mission
Changsha Tianhe Drilling Tools and Machinery Co., Ltd.
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Product Description General Introduction1. DHD, COP, MISSION, QL, SD, and MACH shanks.2. Flat, concave, convex, drop center.3. Spherical, ballistic, semi-ballistic.4. Application range: All kinds of rock formation.5. Flat, concave, convex bit face.6. Spherical, ballistic buttons.Features:1. Reliable quality, long service life, rare abnormal breakage during service life.2. Good flushing effect to ensure high drilling rate3. Strict quality warranty and compensation rules4. Reasonable designs5. High penetration. Bit Face Shape Selection: 1. Drop Center BitFor high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control. 2. Concave Face The all-around application bit face specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity. 3. Convex Face For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control. 4. Flat Face This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash. Raw Material Steel:first class special alloy steel with high strength, heat resistance and wearableCarbideThe best tungsten carbides from China are commonly applied.Tungsten carbide from European is also available. Model Bit diameter mm(inch) Weight TH79(3.5inch) 90mm-100mm(3 1/2-3 7 /8) 4-4.5 DHD3.5 90mm-105mm(3 1/2-4 1/8) 4.5-5.5 BR33 90mm-100mm(3 1/2-3 7 /8) 4-4.5 DHD340 105mm-138mm(4 1/10-5 2/5) 8-12 QL40 110mm-133mm(4 3/8-5 1/4) 10-12 DHD350 135mm-165mm(5 3/10-6 1/2) 15.2-18 MISSION50 138mm-165mm(5 2/5-6) 16-18 QL50 138mm-152mm(5 2/5-6) 16-18 SD5 138mm-152mm(5 2/5-6) 16-18 MAHC50TS398(20inch) 138mm-152mm(5 2/5-6) 16-18 DHD360 152mm-203mm(6-8) 24-33 MISSION60 152mm-203mm(6-8) 21-30 SD6 152mm-254mm(6-10) 24-50 QL60(COP64G) 152mm-203mm(6-8) 24-33 XL60 152mm-190mm(6-7 1/2) 22-27 DHD380 200mm-305mm(7 7/8-12) 47-82 SD8 200mm-305mm(7 7/8-12) 47-82 QL80 200mm-305mm(7 7/8-12) 48-84 TH220 240mm-350mm(9 2/5-13 7/10) 75-125 NUMA100 240mm-350mm(9 2/5-13 7/10) 75-125 SD10 240mm-350mm(9 2/5-13 7/10) 75-125 DHD112 310mm-444.5mm(12 1/5-17 1/2) 140-252 SD12 310mm-444.5mm(12 1/5-17 1/2) 142-254 NUMA120 310mm-444.5mm(12 1/5-17 1/2) 140-252 TH398(20inch) 500mm-550mm(19 3/5-21 3/5) 480-510 TH600(32inch) 800mm-1000mm(31 2/5-39 3/10) 680-984 Package
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