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Views: 1 Author: Site Editor Publish Time: 2022-09-27 Origin: Site
Drill and blast engineers and water well contractors trust Bestlink's DTH equipment because of the precision engineering and high standards of drilling efficiency built into each of our hammers and bits.
DTH bits specifications:
| 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 |
| To know 12-30 inch bits information, contact us now | |||
DTH hammers specifications:
| 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 | |||||
