Gold Member Since 2011
Audited Supplier
Nanjing Jinglue FRP Co., Ltd.

Frp Rockbolts, Frp Rockbolt, Fiberglass Rockbolt manufacturer / supplier in China, offering GRP Rockbolt System, GRP Tube, FRP Pultruded Round Profile and so on.

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GRP Rockbolt System

FOB Price: Get Latest Price
Min. Order: 2 Tons
Transport Package: According to Customer′s Requirements
Payment Terms: L/C, T/T, etc.

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Basic Info
  • Type: Themosetting Plastic Products
  • Characteristics: Low Weight, High Strength, Excellent Cuttability
  • Diameter of The FRP Bolt: 18mm, 20mm, 22mm, 24mm, etc.
  • Specification: Above Chinese National Standard
  • HS Code: 3925909090
  • Materials: Resin, Fiberglass and Some Agents
  • Applications: Is Developed for Strata Support in Mining and...
  • Trademark: JLF
  • Origin: China
Product Description
FRP rock bolts are made from high strength glass fiber and polyester resin, vinyl easter resin and epoxy resin by pultrusion and winding process.

Jinglue produces FRP rock bolts according to her own enterprise standard which is superior to Chinese National Standard. With good technology, Jinglue can produce high quality rock bolts which can meet different requirements.

In comparison with steel rock bolts, FRP rock bolts have many advantages. Step by step, FRP rock bolts replace the steel bolts and are widely used in some area as strata support, especially in corrosion area like mining and tunnelling, subway, etc.

1. Low weight and high strength
FRP rock bolts have double the strength of standard steel, but only a quarter of the weight. The low weight facilitates handling. The FRP bolt is produced using high quality fibres, with a high fibre content of approximately 80%. The fibers are embedded in either a polyester or winylester or epoxy resin matrix. This gives the rod a high tensile strength prominient in the longitudinal directions.

2. Corrosion-resistance
FRP rock bolts are corrosion resistant and therefore the only currently available system which can be regarded as permanent, even under difficult conditions with aggressive water and rock deformations. These products are used more and more increasingly for soil reinforcement and ground anchoring.

3. Excellent cuttability
FRP rock bolts are easy to cut and that can help to protect the toolbit of coal cutter.

4. Anti-static conditioning (optional)
For application in tunnelling and mining an anti-static coating can be applied as an option to avoid any sparks in explosive environment.

5. Continuous threaded profile
Due to its continuous thread profile, the FRP rock bolts offer a maximum bondage with all the grouting material and also concrete. The continuous thread profile has a great possibility to connect with couplers in any length and also can take high ultimate load.

6. High end loading
The special thread profile and an optimized matching between bolt thread and nut thread ensure high end loads that can almost reach the level of steel anchor systems.

In all, FRP rock bolts are best suited in applications that require high tensile strength and the particular properties of fiberglass materials. Applied correctly they contribute substantially to the reduction of project cost.


The FRP rock bolts are developed for strata support in mining and tunnelling, subway, etc.
-----mine roadway supports
----- mountain slope supports
-----tunnel culvert supports

We mainly produce FRP rock bolts with a diameter of 18mm, 20mm, 22mm, 24mm, etc.
Diameter
(mm)
Φ20 Φ22 Φ24 Φ25 Φ27 Φ30 Φ32 ΦR25/12 ΦR32/15
Stress Cross Section
(mm2)
254 310 389 400 460 615 706 310 529.87
Ultimate load
(KN)
225 270 340 350 400 490 580 250 400
Ultimate
tensile strength
(N/mm2)

885

870

874

875

869

796

821

806

755
Ultimate Shear
strength
(N/mm2)

≥160

≥160

≥160

≥160

≥160

≥160

≥160

≥200

≥220
Breaking Load Thread(KN)
75

90

100

120

130

140

150

250

350
Ultimate Torsion Strength(N.m)
80

110

140

150

160

200

230

280

400
Anti-static
coating
≤3×106
Ω
≤3×106
Ω
≤3×106
Ω
≤3×106
Ω
≤3×106
Ω
≤3×106
Ω
≤3×106
Ω

__

__
Fire resistance
(Flame time )
≤8S ≤8S ≤8S ≤8S ≤8S
≤8S

≤8S

≤8S

≤8S
Strain(%) 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
Weight(g/m) 580 703 840 908 1059 1350 1530 718 1192
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