China DTH Drilling Hammers and DTH Button Bits for Mining and Well Drilling, Find details about China DTH Bit, DTH Hammer Bit from DTH Drilling Hammers and DTH Button Bits for Mining and Well Drilling
Hammer inch | Bits diameter | Shank | |
Metric | Inch | ||
1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 M30/DHD3.5/BR3 |
4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 SD4/M40/QL40 |
5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 SD5/M50/QL50/BR5 |
6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 M60/QL60/Bulroc BR6 |
8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 QL80/M80 |
10" | 254mm-380mm | 10"-15" | SD10 NUMA100 |
12" | 305mm-508mm | 12"-20" | DHD1120/SD12 NUMA120/NUMA125 |
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Hammers | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption | |
1-3" Middle-low pressure DTH hammers | BR1 BR2 BR3 | RD40 box RD50 box API 2 3/8" Reg | Φ64-Φ76mm Φ70-Φ90mm Φ90-Φ110mm | 0.7-1.75Mpa | 0.7 Mpa | 4.5 m3/min |
1.0 Mpa | 4 m3/min | |||||
1.4 Mpa | 5 m3/min | |||||
3" hammers | DHD3.5 COP32/COP34 M30 | API 2 3/8"Reg | Φ90-Φ110mm | 1.0-1.5Mpa | 1.0 Mpa | 4.5 m3/min |
1.5 Mpa | 9 m3/min | |||||
4" hammers | DHD340 COP44 QL40 SD4 M40 | API 2 3/8"Reg | Φ105-Φ130mm | 1.0-2.5Mpa | 1.0 Mpa | 6 m3/min |
1.8 Mpa | 10 m3/min | |||||
2.4 Mpa | 15 m3/min | |||||
5" hammers | DHD350 COP54 QL50 SD5 M50 | API 2 3/8"Reg API 3 1/2"Reg | Φ130-Φ156mm | 1.0-2.5Mpa | 1.0 Mpa | 9 m3/min |
1.8 Mpa | 15 m3/min | |||||
2.4 Mpa | 23 m3/min | |||||
6" hammers | DHD360 COP64 QL60 SD6 M60 | API 3 1/2"Reg | Φ152-Φ203mm | 1.0-2.5Mpa | 1.0 Mpa | 10 m3/min |
1.8 Mpa | 20 m3/min | |||||
2.4 Mpa | 28.5 m3/min | |||||
8" hammers | DHD380 COP84 QL80 SD8 M80 | API 4 1/2"Reg | Φ200-Φ279mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
1.8Mpa | 26m3/min | |||||
2.4Mpa | 34m3/min | |||||
10" hammers | SD10 NUMA100 | API 6 5/8"Reg | Φ254-Φ330mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
1.8Mpa | 40m3/min | |||||
2.4Mpa | 55m3/min | |||||
12" hammers | DHD1120 SD12 NUMA120 NUMA125 | API 6 5/8"Reg | Φ305-Φ381mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
1.8Mpa | 56m3/min | |||||
2.4Mpa | 78m3/min |