Anchors Drilling Bits R51/110ESS Self Drilling Rock Anchors for Fore poling
Specifications of our SDA drilling bits R51/110mm
Thread:R51
Diameter:110mm
Applications in Tunneling & Ground Engineering:
Radial bolting
Tunnel repair and refurbishment
Cliff and Slope stabilization and reinforcement
Fore poling
Micro injection pile
Face stabilization
Temporary support anchor
Portal preparation
Soil nailing
Rocknetting retention
Features and Advantages
1.Particularly suitable for difficult ground conditions.
2.An efficient installation since drilling, placing and grouting can be performed in a single operation, saving both time and money.
3.Self-drilling system eliminates the requirement for a cased borehole in collapsing soils.
4.Fast, single-step anchoring system with simple equipment able to work with standard track drill (top hammer) or hand-held drilling equipment, eliminating the need for larger casing rigs.
5.Installation with simultaneous drilling and grouting possible, and post grouting system is simple.
6.Continuously drilling and grouting under high pressure causes the grout to permeate into looser soils and creates a bulb-effect for increased bond capacity.
7.Easy installation in all directions, also upwards, and similar installation methods for all ground conditions.
8.Suitable for working in limited space, height and in areas of difficult access.
9.Galvanizing for enhanced corrosion protection is available if necessary.
10.Multiple ranges of drill bits suitable for different ground conditions.
11.Continuously threaded bar pattern can be cut and coupled anywhere along its length to achieve all lengths.
Bits type:
EX: Hardened cross bit for loose to medium dense ground conditions
ES: Hardened button bit for unconsolidated rock with boulders
EC: Hardened arch bit for unconsolidated soil with small boulders
EY: Hardened 3 cutters bit for loose to medium dense ground conditions
EXX: T.C cross bit for soft to medium rock formations
ESS: Button bit with T.C inserts for medium rock formations
ECC: T.C arch bit for soft to medium rock formations
EYY: T.C 3 cutters bit for soft to medium rock formations
Clay bits: Casted clay bit for Soft clay and soil
Anchor bit diameter to choose:
| Dia. | 42 | 51 | 76 | 90 | 100 | 115 | 130 | 150 | 175 | 220 | 250 | 280 | 300 | 350 |
| R25 | √ | √ | | | | | | | | | | | | |
| R32 | | √ | √ | √ | √ | | | | | | | | | |
| R38 | | | √ | √ | √ | √ | √ | | | | | | | |
| R51 | | | √ | √ | √ | √ | √ | √ | | | | | | |
| T76 | | | | | √ | √ | √ | √ | √ | | | | | |
| T30 | | √ | √ | | | | | | | | | | | |
| T40 | | | | √ | √ | √ | √ | | | | | | | |
| T52 | | | | √ | √ | √ | √ | √ | √ | | | | | |
| T73 | | | | | | | √ | √ | √ | √ | | | | |
| T103 | | | | | | | | | √ | √ | √ | √ | √ | √ |
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| Thread standard | ISO 10208 / ISO 1720/ Other international standards |
| Thread direction | Left hand / Right hand |
| Hardness | HRA 87 ~HRA90 for TC bits, HRC 48 ~HRC 55 for all steel bits. |
Related anchors bolts:
| Types | Outer Diameter | Average Internal Diameter | Effective External Diameter |
| mm | mm | mm |
| R25N | 25 | 14 | 23 |
| R32N | 32 | 18.5 | 29.1 |
| R32S | 32 | 15 | 29.1 |
| R38N | 38 | 19 | 35.7 |
| R51L | 51 | 36 | 47.8 |
| R51N | 51 | 33 | 47.8 |
| T76N | 76 | 51 | 76 |
| T76S | 76 | 45 | 76 |
| Length: 1m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m, 5.5m, 6m |
Product Tags:
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High Performance R51/110ESS Self Drilling Rock Anchor Drill Bit For Fore Poling Images
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