Food grade silicone bellows rubber bellow tube

Custom silicone bellows for food-related equipment need their folded geometry considered alongside cleaning and material selection. The dimensions, hardness, and color can be adapted to the assembly, while the silicone formulation should suit the intended food contact and operating conditions. The folds must accommodate the required movement without becoming inaccessible pockets in the equipment layout.

Define the shortest and longest working positions and the space around them. At compression, neighboring folds approach one another; at extension, different surfaces become exposed. The installation should allow the intended cleaning process to reach the relevant areas without requiring the bellows to be stretched beyond its designed movement.

End connections deserve equal attention. Their fit and retention should match the adjacent components, and the transition into the flexible body should remain clear of sharp edges. If the bellows carries a medium, establish the system conditions and material compatibility for that service rather than relying on the general component name.

Inspect the part after installation through its full intended motion. During care, remove residue from the valleys and connection areas using the equipment's approved method. Check the fold roots for tears or persistent deformation before returning the assembly to operation. A replacement should match both the movement envelope and the food-contact material requirements of the original design.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. At compression, neighboring folds approach one another; at extension, different surfaces become exposed.

Custom geometry

Define the shortest and longest working positions and the space around them.

Fit evaluation

Inspect the part after installation through its full intended motion.

Color & OEM

Custom colors; identification clear of folds and end connections.

Photos illustrate structure or material appearance only. The folds must accommodate the required movement without becoming inaccessible pockets in the equipment layout. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.