ROUND PROFILE
The standard profile used for bellows and generally the cheapest form of protection. The OD and ID can be infinitely variable. However, the differential between outside and inside has limitation and should be ideally no less than 20MM.

SQUARE PROFILE
A square profile offers a more uniform shape when extended and is ideal for long lead screw protection.

HEXAGONAL PROFILE
The hexagonal profile with a circular centre, offers an excellent uniform shape when extended, even when using a large land area, and is therefore used for long extensions with minimum compression ratios.

OCTAGONAL PROFILE
Octagonal profiles are used to over come similar design criteria as above, but on larger applications. Obviously any shaped profile can be produced to suit your particular requirements.