GFRP Bolts

Minova’s glass‑fibre reinforced polymer (GFRP) solid and hollow bolts deliver high tensile strength, corrosion resistance and full cuttability for efficient strata support in mining and tunnelling.

Product Benefits

Faster installs and heading progress with lighter components
Safer excavation - cuttable bolts protect machines and bits
Reliable load transfer for early ground stabilisation
Flexible support strategy: grout, resin or injection use
Long service life thanks to proven corrosion resistance

Sectors

Metal & Non-Metal Mining, Coal Mining, Infrastructure

Applications

Product Details

Minova’s glass‑fibre reinforced polymer (GFRP) bolt range combines high strength, low weight and full cuttability to keep your operations productive and your people safe. Available as solid and hollow injection variants, these systems provide immediate, reliable strata support across mining, tunnelling and civil works. Solid GFRP bolts use a continuous all‑thread profile to achieve high ultimate loads and excellent bond with cementitious grouts and fast‑setting Lokset® resin capsules; anti‑static options are available. Hollow GFRP bolts enable controlled, high‑pressure resin or grout injection to consolidate fractured or weathered ground without delaying heading. Typical solid bolt diameters span 18–32 mm with ultimate loads up to 560 kN, while hollow variants around 25 mm outer diameter support demanding injection regimes. Across the range, GFRP’s corrosion resistance suits permanent and temporary support, and its low density—about 30 percent of steel—improves handling and reduces logistics underground.

Product Features

Cuttable GFRP bolts for safer, faster, permanent support

Solid and hollow options for every ground scenario

Choose cuttable solid bolts for grout or Lokset® capsules, and hollow bolts for high‑pressure injection in fractured rock

High tensile load with continuous all‑thread bars

Profiled, continuously threaded bars deliver high ultimate loads and excellent bond with grouts and resins

Low density—around 30% of comparable steel weight

GFRP’s low mass improves manual handling, speeds installation and reduces transport effort

Corrosion resistant for permanent & temporary use

Non‑corrosive composite construction suits long‑term ground control as well as temporary support

Cuttable design protects equipment during mining

Safe to mine through—protects cutters, drills and conveyors when advancing headings or enlarging

Product Benefits

Faster installs and heading progress with lighter components
Safer excavation - cuttable bolts protect machines and bits
Reliable load transfer for early ground stabilisation
Flexible support strategy: grout, resin or injection use
Long service life thanks to proven corrosion resistance