„Foam air ducts“
Twin-Sheet foam air ducts for commercial vehicles and automotive
for various customers
„Twin-Sheet pipe distributor“
Pipe distributor for wastewater­treatment­plants
Koch Membrane Systems
„Heat exchanger“
Heat exchanger
„Development Air/air-heat exchanger“
Development, prototyping as well as production setup of Twin-Sheet heat exchangers

Foam air ducts

Twin-Sheet foam air ducts for commercial vehicles and automotive

Project scope

Production of Twin-Sheet foam ducts


Range of services

Hombach develops and delivers different air ducts made of foam and plastics using the Twin-Sheet procedure, thermoforming (vacuum deep-drawing) and 3D printing.

The Twin-Sheet foam air ducts are markedly lighter and insulating compared to conventional compact plastic ducts.

The special machinery of Hombach enables economical production and combination with other production processes (e.g. injection moulding for connecting elements)

All products and parts in our showroom represent a small part of our implemented projects. We will be pleased to check your projects for feasibility and economic efficiency free of charge at any time, or we can provide you with recommendations for suitable technologies.

(c) PLEASE NOTE that all images shown here are subject to the copyright of Ernst Hombach GmbH & Co. KG, of our customers or commissioned photographer. Photos must only be used for other publications, marketing campaigns or similar with written approval.