| Technical Data | Unit | R25N | R32L | R32N | R32S | R38N | R51L | R51N | T76N | T76S |
|---|---|---|---|---|---|---|---|---|---|---|
| Outer Diameter | mm | 25 | 32 | 32 | 32 | 38 | 51 | 51 | 76 | 76 |
| Average Inner Diameter | mm | 14 | 22 | 18.5 | 15 | 19 | 36 | 33 | 51 | 45 |
| Average Cross Sectional Area | mm² | 290 | 340 | 430 | 520 | 770 | 890 | 1070 | 1900 | 2500 |
| Ultimate Load*1 | kN | 200 | 220 | 280 | 360 | 500 | 550 | 800 | 1600 | 1900 |
| Yield Load*1 | kN | 150 | 180 | 230 | 280 | 400 | 450 | 630 | 1200 | 1500 |
| Average Tensile Strength*1 | N/mm² | 690 | 650 | 650 | 690 | 650 | 620 | 750 | 840 | 760 |
| Average Tensile Strength*1 | N/mm² | 520 | 530 | 530 | 540 | 520 | 510 | 590 | 630 | 600 |
| Weight | kg/m | 2.3 | 2.7 | 3.4 | 4.1 | 6.1 | 7.0 | 8.4 | 15.0 | 19.7 |
| Thread Standard | - | ISO 10208 | ISO 1720 | T76*2 | ||||||
| Steel Grade | - | Acc. to EN 10083-1 | ||||||||
| Delivery Lengths | - | 1m, 2m, 3m, 4m, 6m | ||||||||
Key Features
The main advantages of the DSI Hollow Bar are:
- Fast drilling and placing due to drilling, anchor installation and grouting in a single operation.
- Neither separate anchor installation nor removal of casing and drill rods.
- Similar installation methods for all ground conditions.
- Choice of drill bits for different ground conditions.
- The hollow core not only serves for flushing with air or water during drilling, but also for grouting the anchor tendon.
- Flexibility in length by using couplers.
- Ability to work with small drill rigs without casing in restricted headroom conditions.
- Accommodation of needs for enhanced protection against corrosion upon request.
- The accepted high standard of quality control from production stage to installation of the DSI Hollow Bar Anchors ensures consistent quality.
- The DSI Hollow Bar Anchor has an advantage in all applications where normally cased drilling is required.
- The DSI Hollow Bar Anchor System allows for anchoring in both cohesive and non cohesive ground, even under limited space conditions.
