Bellows cups have a pliable outer rim that conforms to curved or uneven surfaces. The bellows sections, while under vacuum, collapse on contact to compensate for inconsistent stack heights. The collapsing action simulates a short cylinder stroke which lifts the product for a short distance, saving the need for a separate lifting mechanism in certain configurations.
Flat cups are available in cloroprene or silicone, nitrile or silicone or vinyl. Please see table below for specific models and materials. Certain models are available in oil-resistant vinyl, grey silicone or polyurethane. Please consult the factory for alternative materials.