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Industrial furnace construction in XXL format: Aichelin builds longest muffle

During the scheduled maintenance of a Aichelin SAFED conveyor belt furnace at a long-standing customer site in England, an impressive project was on the agenda: the replacement of the largest and longest gas-tight muffle* that Aichelin has ever manufactured: 20-meter-long muffle.

Discover SAFED conveyor belt furnaces

A long industrial component wrapped in protective material rests on wooden pallets inside a spacious warehouse, surrounded by machinery and equipment.

Key data of the muffle

  • Length: almost 22 meters

  • Width: 1,35 meters

IN COMPARISON: The standard length of a SAFED mesh belt furnace is normally a maximum of 7.2 meters.

Aerial view of a large industrial warehouse surrounded by greenery, with mountains in the background and a road in the foreground.

Custom-made in XXL format  

This unique component was produced at the AICHELIN Assembly Center Europe (ACE) in Celje, Slovenia. Thanks to maximum precision and outstanding teamwork, the custom-made product was completed in a production time of just 4 months. It was then delivered to England by special transport.

View production site
A long, industrial metal component covered in protective plastic sits on wooden pallets inside a spacious warehouse with high ceilings.

Top performance through planning and teamwork

The project highlights the capabilities of AICHELIN in several ways:

  • Customized furnace solutions for the most demanding customer requirements

  • Excellent planning and international teamwork across national borders

  • Technological and logistical excellence – even on a large scale

”

We are proud to have successfully completed this prestigious project together with our customer. Projects like this are only possible thanks to long-standing trust and partnership-based cooperation, for which we are very grateful.

Philippe Maetz , CEO SAFED France SAS
Brief explanation
What is a gas-tight muffle and for which furnace systems is it used?

A gas-tight muffle made of heat-resistant stainless steel is used for heat treatment under a protective gas atmosphere in SAFED mesh belt systems of types T and BD. Due to the internal overpressure, it forms a hermetically sealed space that is limited by a flame curtain or the direct connection to the oil bath (depending on the type). This enables rapid stabilization and modification of the furnace atmosphere within a few minutes.

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