Swellex Rock Bolt | High-Performance Water-Inflatable Anchors for Mining & Tunneling

1. Swellex Rock Bolt Product Overview

Swellex rock bolts are water-inflatable anchors designed for underground mining, tunneling, and geotechnical stabilization. Also known as water-expanding rock bolts or hydro-expanding bolts, these products provide immediate rock anchorage, high load-bearing capacity, and long-term durability. Our Swellex bolts are manufactured for precise dimensions, reliable performance, and compatibility with standard grouting and support systems.

2. Key Benefits of Swellex Rock Bolts

Immediate Load-Bearing: Expands under water pressure to provide instant rock anchorage.

High Strength & Durability: Withstands cyclic and static loads in underground environments.

Corrosion-Resistant: Suitable for wet, aggressive, or corrosive rock conditions.

Customizable Lengths & Diameters: Tailored to your tunnel, mine, or geotechnical requirements.

Easy Installation: Quick assembly with standard drill holes; minimal surface preparation required.

Compatible Accessories: Can be paired with washers, nuts, and plates for secure installation.

3. Technical Specifications

4. Accessories & Compatible Systems

• Washers and high-strength nuts
• End caps and sealing systems
• Threaded couplers or connectors
• Injection or grouting equipment (if combined with chemical grout)

5. Applications of Swellex Rock Bolts

• Mining: Underground mine roof support, stopes, drifts
• Tunneling: Tunnel lining stabilization, initial support, shotcrete reinforcement
• Geotechnical Engineering: Slope stabilization, retaining walls, ground anchors
• Civil Infrastructure: Metro tunnels, hydropower tunnels, underground facilities

6. Company Capabilities for Swellex Rock Bolts Manufacturing

• Production Capacity: Annual output exceeding 100,000 bolts
• Advanced Equipment: CNC tube forming, rubber extrusion, heat treatment, coating lines
• Testing Laboratory: Load testing, expansion pressure, tensile strength, dimensional accuracy
• Certifications: ISO9001; supports SGS, BV, TÜV inspection; MTC, CO available
• Engineering Experience: Supplied major mining, metro, tunnel, and slope stabilization projects
• Technical Support: Experienced engineers provide selection, installation, and load calculation guidance
• Logistics Capability: Bulk or pallet packaging, timely export-ready delivery

7. Quality Control

• Raw material inspection
• Tube and rubber sealing quality check
• Expansion pressure and tensile testing
• Surface coating inspection
• Third-party testing support available

8. Customization Options for Swellex Rock Bolts

• Custom diameters and lengths for specific tunnel/mine conditions
• Special rubber compounds for wet or corrosive environments
• Custom end caps, nuts, and washers
• Engineering recommendations for optimal anchorage performance

9. Delivery & Packaging

• Pallet or bundle packaging
• Sea or land transport
• Material certificates, packing list, origin certificate included

10. FAQ

Q: Can Swellex rock bolts be supplied with washers and nuts together?

A: Yes, we provide complete anchoring systems including bolts, washers, nuts, and end caps.

Q: Do you support OEM or production by drawings?

A: Yes, we can manufacture according to your specifications or project drawings.

Q: Do you provide export documents?

A: Yes, CO, Form A, and MTC 3.1 can be provided.

11. Contact Us

For pricing, samples, or technical consultation regarding Swellex rock bolts, contact our engineering team for immediate support.