Cones

Lightweight and Durable Components for Manhole Systems

Letbek’s Cones are a core element of our range of precision-moulded plastic components for manhole height adjustment and utility chamber construction. With more than 40 years of experience in developing and manufacturing cones, top rings, and covers, we are recognized as a pioneer in the sector.

Our cones are made from 100% recyclable plastic, providing a unique combination of high structural strength and low weight. The result is a solution that delivers durability, stability, and ergonomic handling – ideal for modern utility infrastructure.

Key Benefits of Letbek Cones:

• Produced in Denmark using proven manufacturing techniques

• High fracture resistance and shape stability – ideal for demanding installation environments

• Low weight – reduces lifting strain and improves on-site ergonomics

• Fully compatible with top rings and existing manhole systems, including concrete structures

• Available in various shapes and sizes – including cones with fold and well frame square adaptations

Letbek cones are offered in multiple diameters and formats – including Ø315 mm, Ø425 mm, Ø600 mm, and Ø700 mm – and can be integrated seamlessly with Letbek’s full product line for a complete, modular and safe chamber system.

Whether you’re working on new installations, replacements or renovation, Letbek offers technically robust and installer-friendly solutions that meet today’s standards for safety, performance, and material efficiency.

Need a special size or technical specification?
Contact us today for expert guidance and custom options.