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. 703-6245
Mfr. Part No.1820415035
kr 173,24
1 Bag of 2
Bag(s)
BSG Bellows 15.6mm Acrylonitrile Butadiene Rubber 2.3N - - Male Thread 1/8 in - -
RS Stock No. 703-6249
Mfr. Part No.1820415037
kr 111,59
Each
Units
BSG Bellows 20mm Fluoromethyl Silicone 5.7N - - Male Thread 1/8 in - -
RS Stock No. 701-3494
Mfr. Part No.ZPT20UN-B01
BrandSMC
kr 87,03
Each
Units
ZPT Flat 20mm NBR - - Vertical Female Thread 1/8 in - -
RS Stock No. 227-3834
Mfr. Part No.ZP40CN
BrandSMC
kr 46,16
Each
Units
ZP Flat with Rib 40mm NBR - - - - - - -
RS Stock No. 227-3929
Mfr. Part No.ZP16BS
BrandSMC
kr 95,45
Each
Units
ZP Bellows 16mm Silicon Rubber - - - - - - -
RS Stock No. 742-6660
Mfr. Part No.ZP2-32UCL
BrandSMC
kr 160,54
Each
Units
ZP2 Flat 32mm Halogenated NBR - - - - - - -
RS Stock No. 827-8807
Mfr. Part No.ZP02UU
BrandSMC
kr 37,49
Each
Units
ZP Flat 2mm Urethane Rubber - - - - - - -
RS Stock No. 725-333
Mfr. Part No.ZPR25CNK10-08-A10
BrandSMC
kr 452,50
Each
Units
ZPR Flat with Rib 25mm NBR - Yes Lateral Male Thread M10 x 1 - -
RS Stock No. 227-3957
Mfr. Part No.ZP32BS
BrandSMC
kr 117,52
Each
Units
ZP Bellows 32mm Silicon Rubber - - - - - - -
RS Stock No. 827-6634
Mfr. Part No.ZP25CS
BrandSMC
kr 41,37
Each
Units
ZP Flat with Rib 25mm Silicon Rubber - - - - - - -
RS Stock No. 725-355
Mfr. Part No.ZPR10CN-06-B5
BrandSMC
kr 182,07
Each
Units
ZPR Flat with Rib 10mm NBR - - Lateral Female Thread M5 x 0.8 - -
RS Stock No. 227-3711
Mfr. Part No.ZPX80HNJ50-B01-A18
BrandSMC
kr 368,61
Each
Units
ZPX Heavy Duty 80mm NBR - Yes Lateral Male Thread M8 - -
RS Stock No. 725-311
Mfr. Part No.ZPR10CNK10-06-A10
BrandSMC
kr 457,41
Each
Units
ZPR Flat with Rib 10mm NBR - Yes Lateral Male Thread M10 x 1 - -
RS Stock No. 725-456
Mfr. Part No.ZP25DN
BrandSMC
kr 67,71
Each
Units
ZP Deep 25mm NBR - - - - - - -
RS Stock No. 725-349
Mfr. Part No.ZPR50CNK10-08-A14
BrandSMC
kr 520,23
Each
Units
ZPR Flat with Rib 50mm NBR - Yes Lateral Male Thread M14 x 1 - -
RS Stock No. 843-5274
Mfr. Part No.ZP3507UN
BrandSMC
kr 29,06
Each
Units
ZP Flat 3.5 x 7mm NBR - - - - - 7mm -
RS Stock No. 703-6223
Mfr. Part No.7320500000
kr 204,74
Each
Units
FSR Flat 50mm Chloroprene Rubber 64N - - Female Thread 1/8 in - -
RS Stock No. 827-8706
Mfr. Part No.ZP40HBS
BrandSMC
kr 184,95
Each
Units
ZP Bellows 40mm Silicon Rubber - Yes Vertical - - - -
RS Stock No. 827-6609
Mfr. Part No.ZP40US
BrandSMC
kr 59,13
Each
Units
ZP Flat 40mm Silicon Rubber - - - - - - -
RS Stock No. 227-3682
Mfr. Part No.ZPX80HN-B01-B10
BrandSMC
kr 214,80
Each
Units
ZPX Heavy Duty 80mm NBR - - Lateral Female Thread M10 - -