The smallest bellows that HEMA can produce are approx. 40 mm wide, 20 mm high and have an extension of 20 mm. It can hardly be smaller, as a bellows has at least 2 folds and at least 7.5 mm is required per fold. Such tiny bellows are used, for example, to protect sensitive components in the optical industry or in measurement technology. The largest bellows from HEMA, on the other hand, reach extensions of up to 32 m in length. For comparison: a football field in the Bundesliga is 68 m wide.
HEMA not only adapts the size but also the materials of the bellows to the respective application. Materials are available for laser, plasma and welding applications, special versions for medical technology or versions for high-speed applications. To ensure high quality, comprehensive product and material tests are conducted in the HEMA test area. The Hessian company also works with external institutes for this purpose.
More about the bellows from HEMA:
https://www.hema-group.com/en/competences/production-machinery/protection-systems/bellows
