Pneumatic Suction Cups

Pneumatic suction cups are also known as vacuum cups, vacuum pads and suckers and they can be attached to various surfaces to provide a safe and secure way to move and hold products. Suction cups mould to the shape of the object they are handling without causing any damage. Suction cups are manufactured from a range of materials and perform well in many environments from light duty to heavy industrial.

A suction cup works by having less air pressure on one side of the cup than the other side of the suction cup. When pressure is put onto the suction cup it forces air out of the area, creating a vacuum. The vacuum created enables you to move and lift any product. Suction cups will not work when there is a low atmospheric pressure. Before use check that the suction cup surface is clean and free from dirt or grit to ensure a maximum grip.

Special grippers are sometimes used in tasks which suction cups cannot be used to handle delicate and brittle workpieces and are referred to as Bernoulli effect grippers.

How do pneumatic suction cups work?

When a suction cup contacts the surface of an object, it activates a vacuum generator (such as a blower, vacuum ejector or vacuum pump) that draws air from the space between the cup and the item. As soon as the atmospheric pressure is greater than the pressure between the object and the cup, atmospheric pressure presses the suction cup against the item, holding it firmly.

What is holding force?

Holding force is the amount of force required to move an object. This is measured in Newtons (N) and when looking for the right suction cup, ensure you choose one that will lift, move the weight and size of the object.

What are suction cups made of?

Suction cups are made from various materials like:

  • Silicone
  • Nitrile
  • Polyurethane (PUR)
  • Fluororubber
  • Silicone rubber

Suction Cup Types Available

  • Bellows - ideal for concave and convex shapes. Require minimum pressure. Work on slanted surfaces. Absorbs any alignment problems.
  • Deep - excellent with curved objects. Enhanced grip.
  • Flat - suitable for glass, metal sheets and cardboard.

Pneumatic suction cups are available in a range of shapes, sizes, diameters and designs and will handle most products. RS Components have a great range of pneumatic products including suction cups and grippers suitable for every industry and application.


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Description Price Manufacturer Series Pad Type Pad Diameter Pad Material Holding Force With Buffer Vacuum Entry Direction Connection Type Threaded Connection Size Tube Outside Diameter Material
RS Stock No. 227-3957
Mfr. Part No.ZP32BS
BrandSMC
TWD441.00
Each
units
ZP Bellows 32mm Silicon Rubber - - - - - - -
RS Stock No. 827-6612
Mfr. Part No.ZP16BN
BrandSMC
TWD341.00
Each
units
ZP Bellows 16mm NBR - - - - - - -
RS Stock No. 202-2703
Mfr. Part No.ESS-20-CN
BrandFesto
TWD758.00
Each
units
ESS ESS - 20mm NBR 8.2N - - - - - -
RS Stock No. 227-3890
Mfr. Part No.ZP10BS
BrandSMC
TWD328.00
Each
units
ZP Bellows 10mm Silicon Rubber - - - - - - -
RS Stock No. 203-8361
Mfr. Part No.ESS-30-CN
BrandFesto
TWD822.00
Each
units
ESS Bellows 30mm NBR 20.8N - - - - - -
RS Stock No. 203-8358
Mfr. Part No.ESS-40-GT-G1/4
BrandFesto
TWD840.00
Each
units
ESS - 40mm - 64N - - - - - -
RS Stock No. 227-3913
Mfr. Part No.ZP13BS
BrandSMC
TWD331.00
Each
units
ZP Bellows 13mm Silicon Rubber - - - - - - -
RS Stock No. 204-0075
Mfr. Part No.OGVM-20-A-HN-G14F
BrandFesto
TWD1,081.00
Each
units
OGVM Bellows 20mm - 18N - - - - - -
New
RS Stock No. 220-3883
Mfr. Part No.M/58410/01
TWD4,024.00
Each
units
M/58400 Bellows 75mm NBR 75N - - - - - -
RS Stock No. 202-2714
Mfr. Part No.ESS-30-BU
BrandFesto
TWD495.00
Each
units
ESS ESS - 30mm PUR 26.2N - - - - - -
RS Stock No. 227-3828
Mfr. Part No.ZP32CN
BrandSMC
TWD173.00
Each
units
ZP Flat with Rib 32mm NBR - - - - - - -
RS Stock No. 202-2704
Mfr. Part No.ESF-4A
BrandFesto
TWD1,748.00
Each
units
ESF - - - - - - - - - -
RS Stock No. 203-8380
Mfr. Part No.ESS-100-EN
BrandFesto
TWD3,195.00
Each
units
ESS - 100mm NBR 440.8N - - - - - -
RS Stock No. 204-0095
Mfr. Part No.OGVM-45-G-N-G14F
BrandFesto
TWD793.00
Each
units
OGVM - 45mm NBR 77N - - - - - -
RS Stock No. 202-2795
Mfr. Part No.VASB-8-M5-PUR-B
BrandFesto
TWD250.00
Each
units
VASB - 8mm PUR 2.8N - - - - - -
New
RS Stock No. 220-3880
Mfr. Part No.M/58312/01
TWD11,369.00
Each
units
M/58300 Flat 150mm NBR 280N - - - - - -
RS Stock No. 203-8275
Mfr. Part No.ESS-40-BT-G1/4
BrandFesto
TWD1,279.00
Each
units
ESS Bellows 40mm - 59N - - - - - -
RS Stock No. 203-8252
Mfr. Part No.ESH-HD-3-QS
BrandFesto
TWD1,760.00
Each
units
ESH - - NBR - - - - - - -
RS Stock No. 203-8279
Mfr. Part No.ESH-HE-4-G1/8
BrandFesto
TWD341.00
Each
units
ESH - - NBR - - - - - - -
RS Stock No. 203-8288
Mfr. Part No.ESS-50-SS
BrandFesto
TWD596.00
Each
units
ESS Flat 50mm Silicon 105.8N - - - - - -