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| Place of Origin | GERMANY |
| Brand Name | ROSCHEN |
| Model Number | size 3" 4" 5" 6" 8" 10" 12" |
Drilling shock absorber for big size hammer
Axuliary Equipment Shock Absorber :
1. Absorb shock for big size Hammer
2. Unique design&precise quality control process
3. Customizing service with customer Request
| Size | Outside Dia./mm |
Length/mm |
| 3" | 77 | 496 |
| 4" | 97 | 496 |
| 5" | 117 | 580 |
| 6" | 138 | 580 |
| 8" | 180 | 656 |
| 10" | 225 | 1017 |
| 12" | 270 | 1017 |
Below is DTH SPEC:
Techincal Parameters
| Description | Product Code | Bit Shank | Thread Connection | Outer Dia.(mm) | Length Without Bit (mm) | Weight (kg) | Flat Wrench (mm) | Rec. Hole Size (mm) |
| RS 180 | 260000 | DHD38, COP84 | API 4 1/2" REG PIN | 180 | 1522 | 190 | 150 | 203-271 |
| Working Pressure (bar) | Impact Frequency at 17 bar (Hz) | Normal Axial Pressure (kN) | Rec.Rotation Speed (r/min) | Air Consumption (m³/min) | ||||
| 14-24 | 20 | 18.3 | 30-40 | 12bar | 17bar | 24bar | ||
| 22.5 | 28.2 | 39.6 | ||||||
| Hammers Matching To Other Bits | ||||||||
| Description | Product Code | Bit Shank | Thread Connection | Outer Dia. (mm) | Length Without Bit (mm) | Weight (kg) | Flat Wrench (mm) | Rec. Hole Size (mm) |
| RS180-QL80 | 260001 | QL80 | API 4 1/2" REG PIN | 180 | 1515 | 190 | 150 | 203-271 |
| RS180-Mission80 | 260003 | Mission80 | 1515 | 188 | ||||
| RS180-MACH80 | 260005 | MACH80 | 1522 | 190 | ||||
| RS180-SD8 | 261000 | SD8 | 1492 | 195 | ||||
| Working Pressur (bar) |
Impact Frequency at 17 bar |
Normal Axial Pressure (kN |
Rec. Rotation Speed (r/min) |
Air Consumption (m³/min) |
||
| 14-24 | 20 | 18.3 | 30-40 | 14bar | 17bar | 24bar |
| 22.5 | 28.2 | 39.6 | ||||
| ROSCHEN DTH Hammers Specifications | |||||||
| Hammer Size | Bit Shank | ROSCHEN Code | Connection Thread | Suitable bit | Working pressure | Air consumption | |
| 1" | BR1 | ROS 11 | RD50 box | ￠50-70mm | 0.7-1.75Mpa | 0.7Mpa | 4.5m3/min |
| 1.0Mpa | 4m3/min | ||||||
| 1.4Mpa | 5m3/min | ||||||
| 2" | BR2 | 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 | |||||
| Numa120 | 2.4Mpa | 78m3/min | |||||
| Notes: | |||||||
| Metzke, Remet thread is available! | |||||||
| Any special typ shank of DTH Hammer will be available by requests. | |||||||
DTH Bit
DTH bit is also our main product. After mang years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.
1.high and low air pressure down-the-hole drill bits
2.Low air pressure holeDia.:65-220mm
3.High air pressure hole Dia.:85-305mm
4.Face type:drop center/concave/convex/double gauge/flat
5.Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.
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