JIANGTAI high strenth self drilling anchor bolt
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The Self Drilling Hollow Anchor is a unique anchoring system and is today's answer to the increasing demands of the tunnelling industry and ground engineering for safer and faster production.
Application for project:
1. Permanent support for tunneling.
2. In slope stabilization, rock bolts and soil nails can be used to maintain and strengthen soil and rock.
3. Used for Micro pile reinforcement. Micro pile can transmit structural load to foundation, and then limit the deformation of buildings.
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.
| Anchor bolt | Outside diameter | Average internal diameter | Ultimate load capacity | Yield load capacity | Weight | Thread type |
| | mm | mm | KN | KN | Kg/m |
|
| R25N | 25 | 14 | 200 | 150 | 2.3 | ISO10208 |
| R32L | 32 | 22 | 260 | 200 | 2.8 | |
| R32N | 32 | 18.5 | 280 | 230 | 2.9 | |
| R32S | 32 | 17 | 360 | 280 | 3.6 | |
| R38N/21 | 38 | 21 | 500 | 400 | 4.8 | |
| R38N/19 | 38 | 19 | 500 | 400 | 5.5 | |
| R51L | 51 | 36 | 550 | 450 | 7.0 | ISO1720 |
| R51N | 51 | 33 | 800 | 630 | 8.5 | |
| Thread (left or right hand) | Left or Right | |||||
| Length | 1-6m, we can supply any length according to construction require | |||||
| Type of Steel | EN10083-1 | |||||
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