FRP Rock Bolt Manufacturer | GFRP Ground Support Anchors
IncomePultrusion manufactures FRP rock bolts (fiberglass / GFRP ground anchors) for mining, tunneling, and slope stabilization. Corrosion-resistant, TBM-cuttable, and electrically non-conductive — with B2B export documentation.
- Applications: mine roof support, tunnel face bolting, dam anchors, coastal slopes
- vs steel: no rust, ~75% lighter, cuttable without damaging TBM cutters
- Related: GFRP rebar · browse rock bolt SKUs
Quick Answer
FRP rock bolts (fiberglass / GFRP ground anchors) reinforce rock and soil in mining, tunneling, and slope projects. They resist corrosion, are electrically non-conductive, and can be cut by TBM equipment — unlike steel bolts. IncomePultrusion supplies diameters 16–32 mm for B2B export.
- Applications: mine roof bolts, tunnel face support, dam anchors, coastal slopes
- vs steel: no rust, lighter logistics, TBM-cuttable, non-magnetic
- B2B supply: standard and custom lengths, resin systems, lot test reports
- Product Details
- Loading Force
| Diameter(mm) | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 25 |
| Weight(g/m) | 60 | 100 | 160 | 220 | 300 | 380 | 470 | 560 | 720 | 950 |
| Cross section(mm2) | 28.3 | 50.2 | 78.5 | 113 | 153.9 | 201 | 254.3 | 314 | 379.9 | 490.6 |
| Tension strength(MPa) | 1100 | 1050 | 980 | 870 | 764 | 752 | 744 | 716 | 695 | 675 |
| Tension Load(KN) | 31.1 | 52.7 | 76.9 | 99 | 117.6 | 151 | 189 | 225 | 264 | 331 |
| Weight(g/m) | 50 | 98 | 145 | 190 | 240 | 290 | 340 | 420 | 530 | 990 |
| Modulus(Gpa) | 40-42 | |||||||||
| Fiber ratio | 70%-80% | |||||||||
| Density(g/m3) | 1.9-2.1 | |||||||||
| Elongation(%) | 2.6 | |||||||||
- 18mm Rock-force:60KN
- 20mm Rock-force:70KN
- 22mm Rock-force:80KN
- 24mm Rock-force:90KN
- 27mm Rock-force:105KN
FRP Rock Bolts for Mining, Tunnels & Slopes
Pultruded GFRP rock bolts combine high tensile glass fibers with vinyl ester or epoxy resin into full-thread ground anchors. IncomePultrusion supplies rock bolts where steel would corrode in groundwater, chlorides, or aggressive mine water — and where TBM excavation requires cuttable face support.
Explore complementary reinforcement on GFRP / FRP rebar or browse diameters in FRP rock bolt products.
Fiberglass Rock Bolt vs Steel Rock Bolt
Steel rock bolts remain common in dry, stable rock. Fiberglass rock bolts win when corrosion would force early replacement, when electrical neutrality is required, or when mechanized tunneling must cut through face bolts without damaging tools. Factor lifecycle cost, not only bolt unit price.
TBM-Cuttable Ground Support
FRP rock bolts are TBM compatible — a key advantage in NATM and mechanized tunnel projects. Specify cuttable GFRP anchors in face bolting layouts to avoid steel encounters that stop excavation and wear cutterheads.
Standard diameters ship from stock: the 22mm fiberglass rock bolt suits general roof and wall support, while the mining-grade FRP rock bolt line covers heavy-duty, antistatic applications.
B2B Procurement Checklist
- Nominal diameter (16–32 mm) and length (1200–3000 mm typical)
- Resin system and corrosion class from environment data
- Plate/nut specification and required test reports (tensile, shear)
- Destination port and installation method (resin capsule vs grout)