rubber vacuum suction cup silicone screw suction cup

A rubber vacuum suction cup is a serviceable contact component within a larger mounting or handling arrangement. The screw connection gives the surrounding fixture a defined attachment point, while the flexible cup remains the part that meets the work surface. Custom geometry can accommodate the space around that connection.

Leave access to the screw and enough clearance to remove the cup without forcing its lip through a narrow gap. A fixture that hides the contact face makes it harder to detect a damaged edge before use. The installed height should also keep neighboring hardware away from the surface being contacted.

Match the mounting arrangement to the cup body so tightening does not distort the sealing face. The working surface must allow continuous rim contact, and the selected compound should suit the temperature and substances encountered there. Inspect the cup after cleaning and replacement, checking both seating and release in the actual assembly. Replace a worn cup with the same required geometry rather than assuming that another screw fitting provides an equivalent contact interface.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. Leave access to the screw and enough clearance to remove the cup without forcing its lip through a narrow gap.

Custom geometry

The working surface must allow continuous rim contact, and the selected compound should suit the temperature and substances encountered there.

Fit evaluation

The installed height should also keep neighboring hardware away from the surface being contacted.

Color & OEM

Custom colors; OEM markings outside the suction contact face.

Photos illustrate structure or material appearance only. The suction cup's screw provides a fixture connection while its flexible body meets the work surface. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.