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| Place of Origin | Germany |
| Brand Name | ROSCHEN |
| Certification | ISO, API |
| Model Number | 25 32 32 38 51 R25N R32L R32N/1 R32N R32S/1 R32S R38N/1 R38N/2 R38N R51L/1 R51L R51N/1 R51N |
R38N 38mm Self drilling anchor bolt for decayed rock , sand gravel
1. Introduction:
Self drilling anchor bolt combines drilling, grouting and anchoring together. It ensures the anchoring effect in complex ground conditions. It’s safe, reliable and efficient.
2. Application
This kind of product is suitable for broken rock, loose soil and conditions which are difficult to drill holes, such as fracture zones, decayed rock, gravel, sandy gravel, backfill ground. In order to have optimal result, drill bits can be used differently according to the rock conditions.
Application for project:
Permanent support for tunneling.In slope stabilization, rock bolts and soil nails can be used to maintain and strengthen soil and rock. Used for Micro pile reinforcement. Micro pile can transmit structural load to foundation, and then limit the deformation of buildings.
3. Features:
1. Casing free in the operation. Anchor bar is also a drill pipe which is convenient and time-saving.
2. Drilling and grouting can be done simultaneously. With good grouting spread radius and reliable anchoring quality, fractures can be filled effectively.
3. The anchor bar with standard full thread can be cut according to your requirement. The cut anchor bar can be connected by couplers. It’s suitable in narrow work space.
4. Due to the continuous R-thread and T-thread, self drilling anchor bolt has higher bonding stress.
4. Specification:
| R -thread Hollow Anchor Bar | |||||
| Size | Outer Dia. | Inner Dia. | Ultimate Load | Yield Load | Weight |
| mm | mm | KN | KN | Kg/m | |
| R25N | 25 | 12 | 200 | 150 | 2.3 |
| R32L | 32 | 20.5 | 210 | 160 | 2.9 |
| R32N/1 | 32 | 20.5 | 280 | 230 | 2.9 |
| R32N | 32 | 18 | 280 | 280 | 3.5 |
| R32S/1 | 32 | 18 | 360 | 280 | 3.5 |
| R32S | 32 | 15 | 360 | 280 | 4.1 |
| R38N/1 | 38 | 22.5 | 500 | 400 | 4.8 |
| R38N/2 | 38 | 21 | 500 | 400 | 5.6 |
| R38N | 38 | 19 | 500 | 400 | 6 |
| R51L/1 | 51 | 39 | 550 | 450 | 5.6 |
| R51L | 51 | 36 | 550 | 450 | 7 |
| R51N/1 | 51 | 34 | 800 | 630 | 7.7 |
| R51N | 51 | 33 | 800 | 630 | 8.5 |
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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
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