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Double Bellows Suction Cups Contact Us

Double-bellows vacuum cups, also called long-bellows cups or 2-1/2 bellows pads, have a relatively wide sealing lip that lays against the workpiece surface without scrubbing radially outward as the cup collapses under vacuum. This design prevents marring highly finished surfaces such as injection-molded plastic parts or damaging delicate items such as electronic components.

Since 1994, EDCO USA has been an industry-leading manufacturer of vacuum cups, vacuum cup fittings, and other industrial vacuum lifting components. If one of our standard vacuum suction cups does not meet your needs, we will design and manufacture a custom double-bellows cup to satisfy any industrial requirement.

Double-Bellows Vacuum Grippers


Double-Bellows Vacuum Cups

Our double-bellows vacuum cups include bottom cleats to help stabilize the cup when collapsed against a workpiece. The added traction surface increases the ability to withstand lateral shear loads. The cleats also help prevent flexible workpieces from deforming into the center of the cup when subjected to deep vacuum.
 

Double-Bellows Cups & Fitting Assemblies

Our double-bellows vacuum cups are available with cup fittings preassembled. If you prefer, the components can be bought separately: only vacuum cups or only cup fittings.
 

Double-Bellows Vacuum Suction Cup Design Considerations

In operation, double-bellows vacuum cups should remain fully collapsed against the workpiece. If a “springing” action is noticed when the workpiece is lifted or transported, this indicates that the vacuum level is not deep enough to hold the workpiece securely. A larger capacity vacuum level is not deep enough to securely hold the workpiece. A larger capacity vacuum pump may be necessary for this situation.
EDCO USA offers various options for double-bellows cup styles, sizes, and materials.

Suitable Workpiece Surfaces for Double-Bellows Vacuum Cups

Double-bellows grippers are ideal for working with objects of varying heights. As a result, they are an excellent choice for many workpiece surfaces, including:
  • Flat
  • Slightly Concave
  • Convex
  • Compound
  • Spherical
  • Cylindrical
  • Flexible
  • Shear Loads

Double-Bellows Suction Cup Sizes

Our double-bellows suction cups are available in several sizes to meet the need of any industrial vacuum application. Our standard sizes are:
  • 25 mm
  • 35 mm
  • 50 mm
  • 65 mm

Double-Bellows Vacuum Cup Materials

Our double-bellows vacuum suction cups are available in the following construction materials:
  • Ameriflex
  • Duramax
  • Nitrile/TPV

Double-Bellows Grippers for the Packaging Industry

While double-bellows vacuum cups are applicable in many industries, they are particularly suited for applications within the packaging industry.
Double bellows vacuum cups provide easier handling of products packed in boxes or blister packs because of the longer stroke. For palletizing applications, the stroke length can compensate for small differences in box heights due to any imperfection in forming the boxes or gluing the flaps. The domed top provides some angular conforming capability, allowing for a good grip even when the box top deforms under the load.
 

Double Bellows Suction Cup Manufacturer for the American Market

At EDCO USA, we pride ourselves on creating American-made products for the USA market. We partner with qualified distributors nationally and internationally to bring you the highest quality services with quick turnaround times. We design, manufacture, and document the performance of our double bellows vacuum suction cups and other vacuum products to provide unparalleled technical assistance to our partners and customers.

To learn more about EDCO and our products or services, read our blog, check out our resources, or peruse our training materials. To get started, contact us today. We’ll help you move the world through automation and vacuum technology.

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