EXAIR's vacuum cups are vinyl. They are ideal for general purpose applications and provide excellent resistance to wear. The Durometer rating (used to indicate the flexibility and stiffness of the cup) is A50. Temperature range is 32°F to 125°F (0°C to 52°C). Three Types of Vacuum Cups are available: Round Cups, Oval Cups and Bellows Cups.

Round Cups are best suited to smooth, flat surfaces. They will grip and release quickly. These cups hold their shape with extended use and grip well to vertical surfaces. Round cups with cleats are better at lifting heavy loads. Cups without cleats can be used for light lifting.

Oval Cups provide the most vacuum due to the larger surface area. They provide more vacuum power than round cups and are suited to lifting heavy loads. They are designed to handle flat rigid sheet materials like wood, glass, cardboard boxes and composites.

Bellows Cups are best suited to textured, uneven surfaces. The folds, called “convolutions”, provide a collapsible area that allows the cup to quickly compress when it touches the flat surface. The attach and release time is greater due to the significant volume of the cup.

A large selection of vacuum generators and accessories are available, including mufflers, check valves, push-in connectors, vacuum tubing, mounting clip, hose barbs and hose.  https://exair.co/57-evaccups