T52 Self-Drilling Anchor Rock Bolt
T52 self-drilling anchor rock bolt is widely used for tunnel system support, mine roadway reinforcement, stabilization of high-risk slopes, and anchoring in fractured formations, making it suitable for medium-load and high-performance geotechnical support applications.
T52 Self-Drilling Anchor Rock Bolt Overview
The T52 self-drilling anchor rock bolt is a high-capacity hollow anchor bar developed for demanding ground reinforcement applications. With a 52 mm outer diameter and ultimate load capacity of up to 929 kN, it provides a higher load-bearing level than smaller T-thread anchor bars. Its T-thread configuration provides reliable mechanical engagement between the bar and connection components, while the hollow structure allows drilling and grouting through the bar. The T52 is suitable for heavy-duty tunnel support, slope stabilization, foundation reinforcement, and other high-load geotechnical applications.
Product Specifications
Hollow Anchor Bar
| Size | Outer Dia. | Ultimate Load | Yield Load | Weight | |||||
| mm | in | kN | kips | kN | kips | kg/m | lbs/ft | ||
 |
SST52N | 52 | 2.05 | 929 | 209 | 730 | 164 | 10.20 | 6.85 |
| SET52N | 52 | 2.05 | 929 | 209 | 730 | 164 | 9.70 | 6.52 | |
| Note： 1. Customized products are available based on your specific requirements； 2. 1mm=0.03937in 1kN=0.225kips 1MPa=0.1450377ksi 1kg/m=0.672 lbs/ft |
|||||||||
Coupler
| Size | Outer Dia. | Length | Weight | Note | |||||
| mm | in | mm | in | kg | lbs | ||||
 |
SST52 | 70 | 2.76 | 160 | 6.30 | 2.31 | 5.08 | With sealing ring | |
Hex Nut
| Size | Key Size | Length | Weight | Note | |||||
| mm | in | mm | in | kg | lbs | ||||
 |
SST52 | 80 | 3.15 | 70 | 2.76 | 1.74 | 3.83 | Heat treatment | |
Spherical Collar Nut
| Size | Key Size | Length | Weight | Note | |||||
| mm | in | mm | in | kg | lbs | ||||
 |
SST52 | 80 | 3.15 | 70 | 2.76 | 2.30 | 5.06 | Heat treatment | |
Flat Plate
| Size | Dimensions | Thickness | Hole Dia. | Weight | |||||
| mm | in | mm | in | mm | in | kg | lbs | ||
 |
SST52 | 150×150 | 5.91×5.91 | 25 | 0.98 | 65 | 2.56 | 3.70 | 8.14 |
| 200×200 | 7.87×7.87 | 30 | 1.18 | 65 | 2.56 | 8.59 | 18.90 | ||
| 220×220 | 8.66×8.66 | 35 | 1.38 | 65 | 2.56 | 12.40 | 27.28 | ||
Centralizer
| Size | Outer Dia. | Length | Weight | ||||
| mm | in | mm | in | kg | lbs | ||
 |
SET52 | 112 | 4.41 | 35 | 1.38 | 0.39 | 0.86 |
Drill Bit
| Size | Outer Dia. | Application (Advice) | ||||||
| mm | in | |||||||
 |
EX | Sand, fills, gravel | ||||||
| SST52/115 | 115 | 4.53 | ||||||
| SST52/130 | 130 | 5.12 | ||||||
| SST52/150 | 150 | 5.91 | ||||||
| SST52/175 | 175 | 6.89 | ||||||
 |
EXX | Softer sedimentary rocks such as marls, mudstones, siltstone | ||||||
| SST52/90 | 90 | 3.54 | ||||||
| SST52/100 | 100 | 3.94 | ||||||
| SST52/115 | 115 | 4.53 | ||||||
| SST52/130 | 130 | 5.12 | ||||||
| SST52/150 | 150 | 5.91 | ||||||
 |
EXX(Venturi) | |||||||
| SST52/100 | 100 | 3.94 | ||||||
 |
Clay Bit | Clay, soft soil, marls, loose sand or gravel | ||||||
| SST52/130 | 130 | 5.12 | ||||||
| SST52/150 | 150 | 5.91 | ||||||
| SST52/175 | 175 | 6.89 | ||||||
| SST52/200 | 200 | 7.87 | ||||||
 |
ES-F | Gravel, soft rock | ||||||
| SST52/115 | 115 | 4.53 | ||||||
 |
ESS-F | Weathered rock, stone walls, rubble | ||||||
| SST52/76 | 76 | 2.99 | ||||||
| SST52/100 | 100 | 3.94 | ||||||
| SST52/115 | 115 | 4.53 | ||||||
| SST52/130 | 130 | 5.12 | ||||||
| SST52/150 | 150 | 5.91 | ||||||
T52 Self-Drilling Anchor Rock Bolt Applications
The T52 is suitable for heavy-duty tunnel support, slope stabilization, foundation reinforcement, and other high-load geotechnical applications.
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