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. 203-8407
Mfr. Part No.ESH-HCL-3-QS
BrandFesto
$97.18
Each
units
ESH - - NBR - - - - - - -
New
RS Stock No. 220-3883
Mfr. Part No.M/58410/01
$51.13
Each
units
M/58400 Bellows 75mm NBR 75N - - - - - -
RS Stock No. 203-8437
Mfr. Part No.ESS-60-EU
BrandFesto
$55.62
Each
units
ESS - 60mm PUR 162.5N - - - - - -
RS Stock No. 202-2726
Mfr. Part No.ESS-15-SS
BrandFesto
$16.33
Each
units
ESS ESS - 15mm - 8.5N - - - - - -
RS Stock No. 203-8413
Mfr. Part No.ESV-20-EN
BrandFesto
$11.02
Each
units
ESV - 20mm NBR 17N - - - - - -
RS Stock No. 203-8375
Mfr. Part No.ESS-30X90-ON
BrandFesto
$65.40
Each
units
ESS - 30 x 90mm NBR 40.8N - - - - - -
RS Stock No. 203-8103
Mfr. Part No.ESV-40-GT
BrandFesto
$28.86
Each
units
ESV Flat 40mm - 64N - - - - - -
RS Stock No. 202-2907
Mfr. Part No.VASB-15-1/8-PUR-B
BrandFesto
$15.21
Each
units
VASB - 15mm PUR 8.5N - - - - - -
RS Stock No. 203-8233
Mfr. Part No.VAL-M5-5
BrandFesto
$104.36
Each
units
VAL - - - - - - - - - -
RS Stock No. 227-3698
Mfr. Part No.ZPX125HN-B01-B10
BrandSMC
$84.22
Each
units
ZPX Heavy Duty 125mm NBR - - Lateral Female Thread M10 - -
RS Stock No. 203-8448
Mfr. Part No.ESS-50-BT-G1/4
BrandFesto
$66.86
Each
units
ESS Bellows 50mm - 100N - - - - - -
RS Stock No. 203-8328
Mfr. Part No.ESS-6-SU
BrandFesto
$16.33
Each
units
ESS Flat 6mm PUR 1.1N - - - - - -
RS Stock No. 202-2761
Mfr. Part No.VAS-55-1/4-NBR
BrandFesto
$17.28
Each
units
VAS - 55mm - 106N - - - - - -
RS Stock No. 204-0100
Mfr. Part No.OGVM-55X115-AV-N-G14F
BrandFesto
$96.98
Each
units
OGVM Bellows 55 x 115mm NBR 200N - - - - - -
RS Stock No. 202-2789
Mfr. Part No.VAS-30-1/8-PUR-B
BrandFesto
$15.51
Each
units
VAS - 30mm PUR 34N - - - - - -
RS Stock No. 202-2727
Mfr. Part No.ESS-20X60-ON
BrandFesto
$54.15
Each
units
ESS ESS - 6mm NBR 62.8N - - - - - -
RS Stock No. 203-8408
Mfr. Part No.ESS-30-SF
BrandFesto
$49.79
Each
units
ESS Flat 30mm - 40.8N - - - - - -
RS Stock No. 203-8331
Mfr. Part No.ESV-20-BN
BrandFesto
$14.40
Each
units
ESV Bellows 20mm NBR 12.9N - - - - - -
RS Stock No. 203-8113
Mfr. Part No.ESV-60-SS
BrandFesto
$34.14
Each
units
ESV Flat 60mm - 166.1N - - - - - -
RS Stock No. 703-6258
Mfr. Part No.1820415039
$20.01
Each
units
BSG Bellows 20mm Acrylonitrile Butadiene Rubber 5.7N - - Male Thread 1/8 in - -