SupUTS R38/820 SDA Rock Anchor Mining Hollow Threaded Bar By Heat Treating Processing
Features
SupAnchor® has achieved the security application of 30,000,000 meters self-drilling anchor bar in the world.
SupAnchor® self drilling anchor system enables drilling and grouting in one operation, making much saving in jobsite and project time. With premium heat treatment technology, 2 types of threads profile available: R (Rope Thread) or T (trapezoidal); For permanent applications, optional HDG or epoxy coating can be provided to protect from corrosion; No cased borehole allowing ground preservation
Advantages
1. Decreased labor & material cost
2. High installation rate
3. Limited access
4. Difficult soil condition
5. No casing required
6. Extra corrosion protection
Applications
1. Roof and wall bolting
2. Radial systematic anchoring
3. All ground condtions
4. Stabilization of tunnel portals
5. Face stabilization
6. Foundation
Technical Data
| SupUTS R Thread | R32/ 380 | R32/ 450 | R32/ 580 | R38/ 580 | R38/ 700 | R38/ 820 | R51/ 1000 | R51/ 1200 |
| Ultimate load (kN) | 380 | 450 | 580 | 580 | 700 | 820 | 1000 | 1200 |
| Load at 0.2% Yield (kN) | 325 | 380 | 460 | 480 | 600 | 650 | 800 | 1000 |
| Weight (kg/m) | 2.90 | 3.30 | 4.25 | 4.30 | 5.50 | 6.00 | 7.40 | 9.40 |
| Tensile strength (N/mm2) | 1100 | 1100 | 1100 | 1100 | 1100 | 1100 | 1100 | 1100 |
| Yield strength (N/mm2) | 900 | 900 | 900 | 900 | 900 | 900 | 900 | 900 |
| Outside diameter (mm) | 32 | 32 | 32 | 38 | 38 | 38 | 50 | 50 |
| Internal diameter (mm ) | 19 | 18 | 14 | 25 | 21 | 18.5 | 37 | 32 |
| Cross sectional area (mm2) | 369 | 420 | 541 | 546 | 700 | 763 | 940 | 1196 |
| Type of steel | 40Cr | 40Cr | 40Cr |
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38mm Ultimate Load 820kN Hollow R38/820 Mining Threaded Bar Images
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