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D55C(A) DTH Hammer
DHD 350 Down The Hole Hammer
DHD 350 Down The Hole Hammer Used in Metallurgy , Coal , Chemical ,
Building Materials Drilling
| Basic Info | |
| Model NO | D55C DHD350Q |
| Mining Object | Mining |
| Origin | Germany,China |
| Type | Drilling Machine |
| Trademark | Roschen |
| HS Code | 84123100 |
| Mining Object | Mining, Ore Machinery, Stone Quarry |
| Usage | Use Together with DTH Button Bits |
| Aplication | DTH Drilling. Coal Mining, Quarry |
| Drill Diameter | 65-305mm |
| Transport Package | Ply wood Box |
Description:
It is a kind of high air pressure DTH Hammer without footvalve, our
newest design. It is also one of the most advanced DTH Hammers in
the world.
It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and
contraction.
2. Lower energy consumption and higher impact frequency. The
drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap
maintenance.
4. Lower air and oil consumption. The oil consumption is about 10%
lower than the one with foot valve.
Technical Parameters of DHD 350 Down The Hole Hammers:
| Length (exclude bit) | Weight (exclude bit) | External Diameter | Bit Shank | Hole Range | Connection Thread | |
| 1102 mm | 68.00 kg | Φ125 mm | RD55C DHD350Q | Φ135mm ~ Φ155mm | API 2 3/8'' Reg | |
| API 3 1/2'' Reg | ||||||
| Working Pressure | Impact rate at 0.5 MPa | Recommended Rotary Speed | Air Consumption | |||
| 1.0 MPa | 1.8 MPa | 2.4 MPa | ||||
| 1.0 ~ 2.5 MPa | 28 Hz | 20 ~ 35 rpm | 8 m³/min | 14 m³/min | 19 m³/min | |
| DTH hammers 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 | |||||
| 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! | |||||||
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.net ; http://www.roschen.cn
http://www.roschen.com ; http://www.roschengroup.com
