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Home > Product > Self Drilling Anchor Bolt System > R Thread Anchor System > Self-Drilling Anchor Bolt (R thread)
Self-Drilling Anchor Bolt (R thread)
R thread self drilling anchor bolt has sizes include R25, R32, R38, R51. It is suitable for broken rock and loose soil.
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Description

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.

 
Application:

 
1. R thread self-drilling anchor bolt is suitable for broken rock, loose soil, and conditions that are difficult to drill holes, such as fracture zones, decayed rock, gravel, sandy gravel, and backfill ground.
2. Used for permanent support for tunneling.
3. In slope stabilization, rock bolts and soil nails can be used to maintain and strengthen soil and rock.
4. Used as micropile reinforcement. Micropile can transmit structural load to the foundation, and then limit the deformation of buildings.
5. Drill bits can be used differently according to the rock conditions.
 
Features:

1. Casing free in the operation. 
The anchor bar is also a drill pipe which is convenient and time-saving.
2. Drilling and grouting can be done simultaneously. With a 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 bars can be connected by couplers. It’s suitable in the narrow workspace.
4. Due to the continuous R-thread and 
T-thread, the self-drilling anchor bolt has higher bonding stress.
                                                                             
Size Outer Dia.
(mm)
Ultimate Load
(kN)
Yield Load
(kN)
Weight
(Kg/m)
SER25N 25 200 150 2.35
SSR32L 32 210 160 2.83
SSR32N 32 280 230 3.50
SSR32S 32 360 280 4.00
SER32L 32 210 160 2.60
SER32N 32 280 230 2.95
SER32S 32 360 280 3.50
SER32S1 32 405 320 4.00
SCR32L1 32 250 190 2.60
SCR32N1 32 280 230 2.83
SSR38N 38 500 400 5.50
SER38N 38 500 400 4.95
SER38S 38 550 450 5.90
SSR51L 51 580 450 6.75
SSR51N 51 800 630 9.00
SER51L 51 550 450 6.20
SER51L1 51 660 540 6.75
SER51N 51 800 630 8.20
SER51S 51 925 740 9.25



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