Silicone vacuum suction cups and rubber sucker for gripping system

Silicone vacuum suction cups in a gripping system need to contact the workpiece in positions that suit its shape and movement. Multiple contact points do not automatically share load evenly, especially when a workpiece is curved or can shift during handling. The complete gripper layout must be evaluated.

Check the cup profile against the actual receiving surface and define the mounting connection to the gripper. The selected silicone formulation should suit the workpiece material and operating environment. Vacuum supply, leakage and movement conditions also contribute to retention; the molded cup alone does not establish a handling capacity.

Evaluate the intended pick, movement and release sequence with the complete system. A cup that seals at rest may encounter different forces when the workpiece rotates or accelerates. During maintenance, inspect each rim and mounting position rather than assuming all cups remain equivalent because they were installed together. Replace worn components with the intended profile so the gripper's contact geometry and connection arrangement remain consistent.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. Multiple contact points do not automatically share load evenly, especially when a workpiece is curved or can shift during handling.

Custom geometry

Check the cup profile against the actual receiving surface and define the mounting connection to the gripper.

Fit evaluation

Evaluate the intended pick, movement and release sequence with the complete system.

Color & OEM

Custom colors; OEM markings outside the suction contact face.

Photos illustrate structure or material appearance only. Silicone vacuum suction cups in a gripping system need to contact the workpiece in positions that suit its shape and movement. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.