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CIR/Br/Cop/SD/Mission/Ql/DHD/Numa Down The Hole Rock Drilling DTH Hammer From 1inch to 12inch
DTH drilling is a percussion system driving a piston inside hammer body with up and down motion by compressed air and transmitting an intensive percussion energy to the bit to enable the drilling by crushing the rock. Drilling method by DTH hammer exerts high drilling performance especially for drilling hard rock and contributes for shortening work schedule. Hence, this method is widely utilized for foundation work, landslide prevention work, quarrying services, marine civil work, etc.
Bestlink company makes and supplies the finest and most efficient Down-the-Hole (DTH) hammers and bits for the mining, construction and water well industries. Bestlink DTH hammers transmit intensive impact energy with low energy loss. This results in good rock breakage, high penetration rates and high productivity. The equipment is designed to give optimal hole quality, reliability, and long service life, as well as the best blasting results and low total operation cost.
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.
Bestlink hammers are flexible, and designed to work with various industry-standard shank designs and a wide range of standard size hammers. Whatever your application, Bestlink has the solution to match your requirements.
Advantages:
- Advanced hammer designs with high power and air efficiency increases productivity
- Tailored product offering covers all your applications and conditions
- Easy service and maintenance designs reduces machine downtime
- Generic and proprietary shank options give you flexibility and reliability
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 | |||
| 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 | |||||
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