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| Place of Origin | CHINA |
| Brand Name | ROSCHEN |
| Certification | ISO |
| Model Number | 50 ~ 400mm |
Hollow Stem Auger Drilling Rods Drill Pipe Geological Drilling Tools High Bending Strength
Hollow Stem Auger Drill Rods Drill Pipe for Geological Drilling
Geological spiral drill pipe
Material:
The geological auger shaft is made of high quality geological special alloy steel pipe, and the drill pipe joint is made of high quality alloy structural steel.
Features:
1. The drill pipe has the characteristics of high bending strength and firm welding;
2. Features of high production efficiency and stable quality
3. The ultra-low spiral spiral blade design makes the geological auger drill rod have large torque, fast slag discharge, good drilling formation and difficult to drill.
Specifications
| No | Dia.: O.D. (mm) | Length (mm) | Thread type | Production Process | Connection form with rig | Steel grade | Material |
| 1 | Ф50-42 | 500~1500 | Taper thread | Friction welding | External clamping | DZ50 | 45Mn2 |
| 2 | Ф63.5-42 | 500~1500 | Taper thread | Friction welding | External clamping | DZ50 | 45Mn2 |
| 3 | Ф63.5-50 | 500~1500 | Taper thread | Friction welding | External clamping | DZ50 | 45Mn2 |
| 4 | Ф73-50 | 500~1500 | Taper thread | Friction welding | External clamping | DZ50 | 45Mn2 |
| 5 | Ф73-63.5 | 500~1500 | Taper thread | Friction welding | External clamping | R780 | 36Mn2v |
| 6 | Ф90-63.5 | 500~1500 | Taper thread | Friction welding | With active drill pipe | R780 | 36Mn2v |
| 7 | Φ98-73 | 500~1500 | Square connection | Friction welding | With active drill pipe | R780 | 36Mn2v |
| 8 | Ф110-63.5 | 500~1500 | Taper thread | Friction welding | With active drill pipe | R780 | 36Mn2v |
| 9 | Ф130-63.5 | 500~1500 | Taper thread | Friction welding | With active drill pipe | R780 | 36Mn2v |
| 10 | Ф146-73 | 500~1500 | Taper thread | Friction welding | With active drill pipe | R780 | 36Mn2v |
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.com ; http://www.roschen.net
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