It all started in 1952, when Erling Jensen and Leif Andresen - in a moment of true inspiration - suddenly saw the possibility of round ventilation systems; easier production, easier installation, easier sealing and easier maintenance.

After the first euphoric moments, they found themselves back at square one - with a big problem. How do you design and produce a machine that turns sheet metal into round tubing effectively.

Four years later their invention - the SPIRO® TUBEFORMER - was a reality. So was the Spiro® company itself. The SPIRO® TUBEFORMER revolutionized the production of ventilation tubing, leaving the square competition back at square one.

Since 1956 Spiro® has developed and produced a number of important and patented sheet metal processing machines, each devoted to a specific phase in the production process of different ducts, fittings and tubes.

The Spiro® family of machines today comprises a number of key machines. You will find these presented on the following web pages. Although they can be put together into a complete production line, each machine can be used on a stand-alone basis, depending upon the specific user needs.

Whichever way you decide to configure the machinery, you will get all the precision, quality and support that comes with Spiro® equipment.