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Down The Hole Drill Hammer / Tunnel Engineering Down Hole Tools
Down The Hole Hammer SD8 Hammer Rock Drilling / Tunnel Engineering Down Hole Tools
Down The Hole Drill Hammer Introduction
Reverse Circulation RC drilling hammers and hammer drill bits provide outstanding performance along with outstanding reliability and simplicity. Our reverse circulation hammers are suitable for any exploration and grade control process to obtain an accurate sample with no contamination. RC drilling hammers can in most instances carry out continuous sample collection in a fraction of the time necessary with conventional or wireline coring.
Down The Hole Drill Hammer Specification Dimensions
| ROSCHEN DTH Hammers Technical Specifications | |||||||
| Hammer Size | Bit Shank | ROSCHEN Code | Connection Thread | Suitable bit | Working pressure | Air consumption | |
| 2" | BR2 | ROS 11 ROS 22 | RD50 box | ￠70-￠90mm | 0.7-1.75Mpa | 0.7Mpa | 4.5m3/min |
| 1.0Mpa | 4m3/min | ||||||
| 1.4Mpa | 5m3/min | ||||||
| 3" | DHD3.5 | ROS 32 | API 2 3/8" Reg | ￠90-￠110mm | 1.0-1.5Mpa | 1.0Mpa | 4.5m3/min |
| COP32/COP34 | |||||||
| M30 | 1.5Mpa | 9m3/min | |||||
| 4" | DHD340 | ROS 34 | API 2 3/8" Reg | ￠110-￠135mm | 1.0-2.5Mpa | 1.0Mpa | 6m3/min |
| COP44 | |||||||
| QL40 | |||||||
| SD4 | 1.8Mpa | 10m3/min | |||||
| M40 | 2.4Mpa | 15m3/min | |||||
| 5" | DHD350 | ROS 52 ROS 54 | API 2 3/8"Reg/ API 3 1/2" Reg | ￠135-￠155mm | 1.0-2.5Mpa | 1.0Mpa | 9m3/min |
| COP54 | |||||||
| QL50 | |||||||
| SD5 | 1.8Mpa | 15m3/min | |||||
| M50 | 2.4Mpa | 23m3/min | |||||
| 6" | DHD360 | ROS 62 ROS 64 | API 3 1/2" Reg | ￠155-￠190mm | 1.0-2.5Mpa | 1.0Mpa | 10m3/min |
| COP64 | |||||||
| QL60 | |||||||
| SD6 | 1.8Mpa | 20m3/min | |||||
| M60 | 2.4Mpa | 28.5m3/min | |||||
| 8" | DHD380 | ROS 82 ROS 84 | API 4 1/2" Reg | ￠195-￠254mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
| COP84 | |||||||
| QL80 | 1.8Mpa | 26m3/min | |||||
| SD8 | 2.4Mpa | 34m3/min | |||||
| M80/M85 | |||||||
| 10" | SD10 | ROS 100 | API 6 5/8" Reg | ￠254-￠311mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
| Numa100 | 1.8Mpa | 40m3/min | |||||
| ROS 100 | 2.4Mpa | 55m3/min | |||||
| 12" | DHD1120 | ROS 120 | API 6 5/8" Reg | ￠305-￠445mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
| SD12 | 1.8Mpa | 56m3/min | |||||
| Numa 120 | 2.4Mpa | 78m3/min | |||||
| 15" | Numa 150 | ROS 150 | API 6 5/8"Reg | ¢530mm-¢660mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
| DHD1150 | 1.8Mpa | 56m3/min | |||||
| QL150 | 2.5Mpa | 78m3/min | |||||
| 18" | Numa 180 | ROS 180 | API 6 5/8"Reg | ¢600mm-¢860mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
| DHD1180 | 1.8Mpa | 56m3/min | |||||
| QL180 | 2.5Mpa | 78m3/min | |||||
| 24" | Numa 240 | ROS 240 | API 6 5/8"Reg | ¢775mm-1000mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
| QL 240 | 1.8Mpa | 56m3/min | |||||
| SD 24 | 2.5Mpa | 78m3/min | |||||
| Notes: | |||||||
| Any Spline is available | |||||||
| API, Metzke, Remet , Fabe thread is available! | |||||||
| Any special typ shank of DTH Hammer will be available by requests. | |||||||
| Lower Pressure DTH Hammer Specification | |||||||
| Model | Drill Hole Dia. (mm) | Casing OD (mm) | Length (mm) | Weight (kg) | Work pressure (MPa) | Air consumption (m3/min) | Impact frequency (T/min) |
| 65A DTH Hammer | Ø65-67 | 61 | 745 | 13 | 0.5-0.7 | 2.5 | ≥810 |
| 70A DTH Hammer | Ø74-76 | 67 | 766 | 15 | 0.5-0.7 | 3 | ≥810 |
| 80A DTH Hammer | Ø80-82 | 72 | 796 | 17 | 0.5-0.7 | 5.5 | ≥810 |
| 90 DTH Hammer | Ø90-100 | 80 | 796 | 22 | 0.5-0.7 | 7 | ≥840 |
| 90A DTH Hammer | Ø90-100 | 80 | 796 | 22 | 0.5-0.7 | 6 | ≥840 |
| 900 DTH Hammer | Ø90-100 | 80 | 870 | 24 | 0.8-1.2 | 5 | ≥700 |
| 930 DTH Hammer | Ø90-100 | 80 | 870 | 24 | 0.8-1.2 | 6 | ≥700 |
| 110A DTH Hammer | Ø110-120 | 98 | 838 | 36 | 0.5-0.7 | 11 | ≥840 |
| DHD340 DTH Hammer | Ø110-140 | 98 | 1045 | 39 | 1.2-2.0 | 3.5-15 | ≥1140 |
| DHD350 DTH Hammer | Ø135-155 | 122 | 1213 | 57 | 0.6-2.5 | 7.5-9 | ≥1140 |
| DHD360 DTH Hammer | Ø152-190 | 139 | 1300 | 98 | 0.6-2.5 | 10.5-19 | ≥1140 |
Down The Hole Drill Hammer Details
CIR110A Downhole Drill Hammer Operation Precautions:
1. In normal rock drilling conditions, the hammer is serviced and cleaned and reassembled every 200 hours of operation. Drilling holes or mud slagging is performed every 100 hours.
2. The lubrication of the hammer is achieved through the oiling device on the main engine. Therefore, it is necessary to ensure that the oiling device is filled with oil before the start of each shift, and there is still a surplus before the next shift begins. The lube oil is mechanical oil No. 20 in summer and No. 5-10 mechanical oil in winter. Before the hammer is installed on the drill pipe, the exhaust valve is operated to remove the debris in the drill pipe and check whether there is oil in the drill pipe. Check the impact device after connecting.
3. The DTH Hammer and the drill rod must not be reversed in the hole to prevent accidents. In the process of drilling down the hole, if you want to stop drilling, you should not stop the air supply to the hammer immediately. You should lift the drill and blow it, and stop the gas supply when there is no more rock and rock powder in the hole. , Then stop turning.
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