Silicone Vacuum Cups

Silicone Vacuum Cups for Industrial Automation

Silicone vacuum cups are a practical choice for robotic pick-and-place, packaging, food-handling equipment and other applications that need flexibility across a broad temperature range. This collection brings together BOLTTE flat, bellows, spherical, mini and heavy-duty silicone suction cup options, including cup-only models and assemblies with mounting fittings.

Choose the cup by workpiece surface, required movement and mounting geometry—not by diameter alone. A flat cup gives stable, fast gripping on smooth and relatively flat parts. Single- or multi-bellows cups adapt more easily to height variation, curved surfaces and angled pickup. Spherical and soft-profile cups are useful for delicate or irregular products. Heavy-duty designs provide a larger effective area and stronger support for sheet, panel and general material-handling applications.

How to select a silicone suction cup

• Surface: smooth, textured, curved, oily or porous surfaces require different lip and profile choices.
• Load and acceleration: allow a safety factor for robot acceleration, emergency stops and off-center loads.
• Temperature and environment: confirm the actual operating temperature, cleaning chemicals and any food-contact requirement before ordering.
• Movement: use bellows when the cup must compensate for height variation or approach angle.
• Mounting: check thread, port direction, fitting style, stroke and available installation height.

Featured silicone vacuum cup families

For compact handling, compare the SPL/SP/DP/MP mini multi-layer cups and VBU cups and fittings. For compliant pickup, review the VAS/VASB bellows series and PJG double-bellows series. For larger or heavier workpieces, see the H-series heavy-duty flat cups and ZPT heavy-duty bellows cups.

Silicone or NBR?

Silicone is commonly selected for flexibility and higher-temperature handling. NBR is often preferred for wear resistance and contact with oil. Actual performance depends on the rubber formulation, workpiece and duty cycle. Read our Silicone vs NBR vacuum cup guide, or send the part surface, weight, temperature, cycle rate and mounting requirements to BOLTTE for a recommendation.

Need help choosing a cup?

If the model is uncertain, request application help. Include a photo or drawing, workpiece dimensions and weight, surface condition, operating temperature, cycle rate, vacuum level and preferred thread or fitting.