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Efficient recycling of plastic roofing membranes


In the first half of 2019, the german industrial association of producers of plastic roofing membranes reported sales of more than 9 million m². These plastic roofing membranes have a long durability, but at some point it's over and they will be recycled in the interests of sustainability. The plan of the Federal Ministry for the Environment (BMU) is increased recycling of products. The manufacturers of roofing membranes have been voluntarily committed for years with the aim of recycling all available old plastic roofing membranes at the end of their durability.

TRENNSO-TECHNIK - your partner for recycling plants

And this is exactly where the processing plants from TRENNSO-TECHNIK® come in. For decades,​​​​​​​ TRENNSO-TECHNIK® is standing for competence in dry separation processes and systems for the separation of dry bulk goods, in the recycling and food sector. In July 2020 we installed a system for recycling old plastic roofing membranes and production surplus for a customer in Germany. The turnkey plant, consisting of several separation units, processes the shredded and ground old membranes. In the end, the output is a high-quality raw material for recycling.

TRENNSO-TECHNIK® modules in use

Among others, the TRENNSO-TECHNIK® modules used in this plant are:


  • windsifter ZZS for separating products by weight, shape and size
  • screening machine SIK for screening granular products
  • rotary valves for discharge and dosing with constant throughput
  • cyclones for separating fine-grained and fibrous products
  • elevators for vertical conveying
  • screw conveyors for inclined transport.

In addition, we designed, built and assembled all the corresponding steel structures and the required control. The throughput of this system is 500 kg per hour. The recovered plastics are filled into BigBags and can e.g. be used as floor mats in greenhouse construction or for riding arenas and paddocks. That is what we understand as solutions for our customers: From planning to construction and manufacture to complete installation - when we leave, the system is running. Quality made by TRENNSO-TECHNIK®.

Questions about sorting technology? Call TRENNSO-TECHNIK®!

If you have questions about pour sorting technology such as our screening technology or density sorting technology, we will be happy to inform you about our machine portfolio. Special feasibility enquiries can be carried out in real terms by means of trials in the TRENNSO-TECHNIK® technical centre in Weißenhorn. Our trained team will be happy to assist you in the technical centre by prior appointment.
We are looking forward to your task: Phone +49-7309-9620-0 or send an email 

By the way: Do you already know our YouTube channel? There you can find interesting videos and animations of our facilities.