screw suction cup custom made molded industrial suction cup

A screw suction cup combines a flexible contact cup with a mechanical attachment point. The screw connection lets a bracket or other mating component connect to the cup, while the rim forms the interface against the target surface. Custom dimensions can accommodate the chosen fixture, but the threaded connection and the suction face need to be considered separately.

Start with the screw size, usable thread length, and space available around the mounting boss. The mating hardware should engage correctly without applying a twisting load to the flexible cup. A bracket that sits at an angle can pull on one side of the rim even when the screw itself is secure.

The contact surface should offer a smooth, continuous area large enough for the entire lip. Seams, rough texture, dust, and curvature can interrupt the seal. During assembly, keep the rim relaxed and avoid trapping debris underneath it. If the cup connects to an active vacuum arrangement, match its connection and operating movement to that system.

Cup diameter alone does not establish the usable holding load. Assess the assembled fixture in its intended orientation, including side forces and release behavior. Detach by releasing the suction interface rather than pulling hard on the screw, and replace a cup whose lip has become cut or distorted.

Material options

Rubber compound options, customized alongside the profile and contact conditions.

Hardness selection

Solid rubber options: 30–90 Shore A. A screw suction cup combines a flexible contact cup with a mechanical attachment point.

Custom geometry

Start with the screw size, usable thread length, and space available around the mounting boss.

Fit evaluation

Assess the assembled fixture in its intended orientation, including side forces and release behavior.

Color & OEM

Custom colors; OEM markings outside the suction contact face.

Photos illustrate structure or material appearance only. The screw connection lets a bracket or other mating component connect to the cup, while the rim forms the interface against the target surface. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.