Using a Material Innovation from Recycled Fishing Nets, the Hübner Group Tests New Paths for Greater Sustainability in Public Transport

Kassel's tram debuts bellows made from recycled fishing nets

A newly developed bellows system is now being deployed for the first time in a tram in Kassel.

According to the company, the Hübner Group has unveiled the first bellows system made from recycled nylon sourced from fishing nets, now in regular service. The system is being used in a modernized tram operated by Kasseler Verkehrs-Gesellschaft (KVG) in Kassel.

The fabric used, called EcoTex, is based on recycled materials and sustainable raw components, specifically designed for rail applications. The company states that its production reduces CO₂ emissions by up to 45 percent compared to conventional materials, while meeting the same technical requirements as traditional solutions.

The innovation is part of a fleet upgrade, demonstrating how sustainable materials can be integrated into the maintenance of existing vehicles. Beyond material advancements, the company also pursues circular economy approaches, such as reusing components.

The technology was previously showcased at InnoTrans 2024 and is a key element of the company's broader sustainability strategy. Additionally, the Hübner Group is actively involved in Railsponsible, an industry network aimed at improving environmental and social standards across the supply chain.