Bellows covers

Each pleat can be equipped with a PVC frame, which guarantees the stability of the shape and the dimensions. The protective cover and the PVC frame are either welded or sewn together. A welded seam is permanently tight and provides oil-resistant protection, while a sewn seam is suitable for heavy mechanical duress. The conductor and the outer frames are manufactured to the customer’s dimensions and requirements.

Polygonal bellows are available in hexagonal (Figure 1), octagonal (Figure 2), dodecagonal etc. versions. Alternately facing pleats provide excellent stability in large dimensions. These bellows guards are multi-layer laminated, which means that the woven textile fabric is glued to the inner material, thus guaranteeing stability and strength in large dimensions. These layers are further attached to a special outer material.

Each pleat is equipped with a shape-retaining PVC frame. The protective cover and the PVC frame are either sewn or welded together. Welded seams are tight and oil-resistant, while sewn seams withstand heavy mechanical duress.

• 1 – Outer frame
• 2 – Protective cover
• 3 – PVC frame

The sturdily articulated shaft runs parallel to the ridges of the pleats. The telescopic plates are connected to the articulation without gluing, either with or without additional compression. The number of telescopic plates depends on the recommended extension of the cover. The method of attaching the outer telescopic plate depends on the application and environment of the bellows cover.