Materials
Materials
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About RBL-REI
RBL‑REI is a French engineering company with over 40 years of expertise in bulk material handling and conveyor systems. Its tunnelling division delivers complete logistics solutions for efficient spoil removal, material supply, and underground workflow optimization. Backed by decades of global experience and strong French engineering standards, RBL‑REI is a trusted partner for tunnelling projects worldwide.
What makes RBL‑REI Unique
Unlike general material-handling providers, RBL‑REI tailors systems specifically for underground projects.
Complete integration of conveyors, hoppers, storage, and automation, ensuring smooth material flow inside tunnels.
Proprietary tool for designing long, curved conveyors that fit complex tunnel geometries.
Multi-disciplinary teams handle mechanical, electrical, automation, and civil works, providing a one-stop solution.
Delivered solutions across metros, rail tunnels, sewer projects, and utility tunnels worldwide.
Tunnelling Technology & Solutions
RBL‑REI provides end-to-end material handling for underground works, including:
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Expandable / extendable conveyors for spoil removal as the tunnel progresses
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Sidewall & booster conveyors for continuous material flow in confined spaces
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Sandwich (ZZ) belts for high throughput in tight tunnels
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Hoppers, dosing & weighing systems for controlled handling of excavated material
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Vertical & horizontal storage modules to temporarily stock muck inside galleries
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Loading/unloading interfaces for trains, trucks, or barges
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Automation & remote control systems to improve safety and efficiency
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Turnkey integration: full scope including civil works, installation, and commissioning
Applications in Tunnelling
Known Tunneling Projects
These projects highlight RBL‑REI’s ability to deliver efficient, safe, and reliable tunnelling logistics solutions for large-scale underground works.
GIE Tunnel, Rennes (France)
RBL-REI engineered and installed a 4 km underground conveyor system capable of handling 400 t/h of excavated material, ensuring continuous spoil evacuation for a major urban infrastructure tunnel. The system was designed to operate smoothly within curved alignments and confined workspaces.
Fengkai, CURVODUC™ (China)
Using its proprietary CURVODUC™ technology, RBL-REI delivered two 40 km curved conveyors—a benchmark in long-distance material transport. These systems demonstrated the company’s mastery of complex layouts, such as S-curves and tight radii, making them directly applicable to long underground galleries and tunnel drives.
Cruz Azul Cement Plant, Mexico
RBL-REI designed S-shaped underground conveyors to transport limestone and petcoke across challenging geometries. The installation improved flow efficiency, minimized transfer points, and provided a reliable handling solution within a constrained underground environment.
Delivering RBL-REI’s Tunnelling Expertise to Vietnam
Farindo brings RBL-REI’s tunnelling logistics solutions to Vietnam, including conveyors, hoppers, storage systems, and automated handling. We support your project locally with installation, commissioning, maintenance, and operator training. Our turnkey approach reduces downtime, improves spoil removal, and keeps tunnel worksites efficient and organized.
Improve the performance and safety of your underground projects with RBL-REI technology. Contact Farindo to find the right material-handling solution for your needs.