Conveyor Idler Roller | Belt Conveyor Roller for Mining and Bulk Material Handling
Conveyor Idler Roller | Belt Conveyor Roller for Mining and Bulk Material Handling
1. Technical Parameters
| Model | S18/150 | S19/165 | S20/200 | S22/250 | S24/300 | S25/350 | S27/400 | S30/490 | S32/490 |
| Outer Diameter, mm | 18 | 19 | 20 | 22 | 24 | 25 | 27 | 30 | 32 |
| Cross-sectional Area, mm2 | 196 | 227 | 249 | 308 | 373 | 408 | 483 | 607 | 497 |
| Ultimate Load, kN | 150 | 165 | 200 | 250 | 300 | 350 | 400 | 490 | 560 |
| Breaking Load, Steel Bolt L=100 mm | 70 | 80 | 80 | 80 | 100 | 180 | 200 | 200 | 320 |
| Breaking Load, Fiberglass Bolt L=70 mm | 60 | 60 | 60 | 70 | 80 | 80 | 80 | 80 | 90 |
| Torsional Strength, Nm | 60 | 70 | 70 | 70 | 100 | 120 | 130 | 180 | 230 |
| Ultimate Strain | 2.50% | 2.50% | 2.50% | 2.50% | 2.50% | 2.50% | 2.50% | 2.50% | 2.50% |
| Elastic Modulus, GPa | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Weight, kg/m | 0.42 | 0.45 | 0.56 | 0.69 | 0.76 | 0.9 | 1.04 | 1.3 | 1.45 |
2. Applications
Fiberglass rock bolts are widely used in geotechnical engineering and underground support projects, including:
It is more suitable for projects with corrosive environment, long-term support load and fast construction speed.
3. Product Structure
FRP hollow anchor bolt is mainly consisted of hollow rod body, anchor head and anchoring accessories. The structure is simple, convenient for construction in site, and improve the construction efficiency.
The rod body adopts glass fiber reinforced resin as raw material, which has good strength, durability and corrosion resistance.
4. Advantages
4.1 High strength: FRP hollow anchor bolt has high strength and can provide excellent support capacity.
4.2 Good corrosion resistance: FRP hollow anchor bolt is made of glass fiber and resin material and has excellent corrosion resistance. It is suitable for engineering in wet and corrosive environments.
4.3 Long service life: FRP anchor bolt has good durability and can meet long-term support needs.
4.4 Easy to install: Lightweight structure makes it easy to handle, reducing installation difficulties and allowing faster construction progress.
5. Construction Notes
5.1 When designing, choose the appropriate specification of anchor bolt according to the engineering requirements and geological conditions.
5.2 During production, the materials, processing methods and manufacturing processes should comply with the design requirements to ensure the quality and performance of the product.
5.3 During construction, construction should be carried out in accordance with the construction drawings and construction process requirements to avoid confusion during construction orInstallation caused by loose connections.
5.4 During use, regular inspection and maintenance are required to ensure safety, stability and long-term service life.
6. Quality & Export Support
Product details can be confirmed according to the buyer’s specification requirements, packaging specifications and quantity needs. The packing method and export documents can also be customized according to the needs of the buyer. The exported documents may include product specification, test report, packing list, commercial invoice and other export documents.
7. FAQ
7.1 What is a fiberglass rock bolt used for?
Ans: It is mainly used for ground support, tunnel support and reinforcement, mining support, slope support and other geotechnical support.
7.2 Is fiberglass rock bolt better than steel rock bolt?
Ans: FRP has high corrosion resistance and low weight which makes it ideal for humid, corrosive or hard-to-build environments. Steel is still popular and can be used if higher rigidity is needed.
7.3 Can the specifications be customized?
Ans:Yes. Diameter,size,length, packing method and some accessories can be discussed.
7.4 What information is needed for a quotation?
Ans: Required model, length, quantity, usage, destination port, packing requirements etc.
7.5 Do you support international shipping?
Ans:Yes. We can prepare the goods for export according to buyers’ requirements.
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We deliver complete support for underground reinforcement applications, covering: Mining roof and sidewall support systems Tunnel reinforcement solutions Slope stabilization engineering support Foundation anchoring systems Underground safety structural systems From early-stage project planning to on-site application, we help customers build safer and more stable underground environments.
Wanfeng provides a fully integrated product supply system, enabling customers to source all ground support materials from one supplier: Rock bolt systems (resin / FRP / threaded) Cable bolts & anchoring systems Steel arches & I-steel support systems Wire mesh & reinforcement mesh Plates, nuts, bolts & fastening components Resin & cement anchoring materials Mining tools & consumable accessories Our one-stop supply capability reduces procurement complexity and improves project efficiency.
We ensure stable and reliable product performance through strict manufacturing and quality control systems: Standardized production processes Raw material inspection and control Mechanical performance testing Load-bearing and tensile strength verification Batch consistency inspection Final quality inspection before shipment Every product is engineered to meet demanding underground safety requirements.
We also support customized solutions for different mining and engineering projects: Customized rock bolt specifications Non-standard steel support design Special mesh and reinforcement structures Project-based product configuration OEM / private label cooperation We work closely with global partners to develop tailored solutions for complex underground environments.
With strong export experience, we provide efficient global delivery and supply chain support: International export packaging standards Container loading optimization Multi-region shipping support Fast production scheduling for urgent projects Stable long-term supply agreements We ensure reliable delivery to mining projects across different countries and regions.
We support customers throughout the entire project lifecycle: Technical documentation support Installation guidance assistance Product replacement support Long-term supply continuity Engineering consultation for project expansion Our goal is to build long-term partnerships, not just single transactions.
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