CRESA is a rotational automatic chain/belt tensioner which uses the elastic deformation of four natural rubber cylinders inside of the spaces created by the coupling of two square section elements that are rotated 45° from one another.
The highest torsion angle the lever can reach is of ±30° from its resting position. There are multiple base CRESA elastic elements so that they can be used as: ammortizzatori, decelerator, vibrating elements and belt scraper supports to clean nets, rollers and conveyors