High quality pneumatic silicone rubber suction cups

Pneumatic silicone rubber suction cups work at the contact end of a system that supplies the required vacuum arrangement. The cup lip must seal against the workpiece while the connection allows the system to operate as intended. A pneumatic-system description does not mean the rubber cup independently generates suction.

Match the mounting interface, air passage and contact profile to the receiving equipment. Surface texture, porosity and contamination can affect the contact, while leakage at a fitting can reduce the available vacuum without a visible rim defect. The selected material must also suit the workpiece and environment.

Evaluate holding behavior under the actual system settings, orientation and movement. Do not infer a load rating from cup diameter or rubber softness alone. During maintenance, inspect both the contact lip and the connection path, including any obstruction in the passage. Replace a damaged cup rather than treating a change in system settings as a lasting correction for a rim that no longer makes its intended contact.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. Evaluate holding behavior under the actual system settings, orientation and movement.

Custom geometry

Match the mounting interface, air passage and contact profile to the receiving equipment.

Fit evaluation

The selected material must also suit the workpiece and environment.

Color & OEM

Custom colors; OEM markings outside the suction contact face.

Photos illustrate structure or material appearance only. The cup lip must seal against the workpiece while the connection allows the system to operate as intended. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.