Suction Cups

What is a Suction Cup?
Suction cups are also known as Vacuum cups, Vacuum pads, suckers, and Pneumatic suction cups plus they are often used as suction grippers. Suction cups attach to various surfaces from flat to uneven and provide a safe and secure way to move and hold products, automatically or manually. The 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.

How do Suction Cups work?
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. You ensure that the suction cup surface is clean and free from dirt or grit ensuring maximum grip.

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 for your use ensure you choose a suction cup that will lift, move the weight and size of the object.

What are Suction Cups made of?
Suction and vacuum cups are made from various material to suit any environment, from the home to industry.
• Rubber
• Silicone
• Nitrile
• Polyurethane
• Fluororubber
• Silicone rubber

Materials suction cups will handle
• Metal
• Glass
• Plastic
• Wood
• Paper
• Food
• Media
• Printing

Suction Cup Types Available

Bellows – excellent for concave and convex shapes. Require minimum pressure. Work on slanted surfaces. Absorbs any alignment problems.

Deep – Excellent with curved objects. Enhanced grip.

Flat - Excellent for glass, metal sheets and cardboard. Any flat or smooth surfaced material.

Suction cups are available in a range of shapes, sizes and design and will handle most products. There is a suction and vacuum cup 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 CAD Drawing
RS stock no. 703-6242
Mfr. Part No.1820415029
BrandAventics
R 269.15
1 Bag of 2
Bag(s)
BSG Bellows 10.4mm Fluoromethyl Silicone 0.95N - - Male Thread 1/8 in - -
RS stock no. 827-8800
Mfr. Part No.ZPT06BS-A5
BrandSMC
R 162.08
Each
units
ZPT Bellows 6mm Silicon Rubber - - Vertical Male Thread M5 x 0.8 - -
RS stock no. 827-6583
Mfr. Part No.ZP16US
BrandSMC
R 83.92
Each
units
ZP Flat 16mm Silicon Rubber - - - - - - -
RS stock no. 725-428
Mfr. Part No.ZP50CN
BrandSMC
R 122.69
Each
units
ZP Flat with Rib 50mm NBR - - - - - - 3D CAD Model
RS stock no. 827-8725
Mfr. Part No.ZPT50HN-B10
BrandSMC
R 249.28
Each
units
ZPT Heavy Duty 50mm NBR - - Vertical Female Thread M10 x 1.5 - -
RS stock no. 725-383
Mfr. Part No.ZPR50CN-08-B8
BrandSMC
R 563.70
Each
units
ZPR Flat with Rib 50mm NBR - - Lateral Female Thread M8 x 1.25 - 3D CAD Model
RS stock no. 227-3929
Mfr. Part No.ZP16BS
BrandSMC
R 208.41
Each
units
ZP Bellows 16mm Silicon Rubber - - - - - - 3D CAD Model
RS stock no. 827-6684
Mfr. Part No.ZP08BU
BrandSMC
R 88.77
Each
units
ZP Bellows 8mm Urethane Rubber - - - - - - -
RS stock no. 703-6245
Mfr. Part No.1820415035
BrandAventics
R 283.40
1 Bag of 2
Bag(s)
BSG Bellows 15.6mm Acrylonitrile Butadiene Rubber 2.3N - - Male Thread 1/8 in - -
RS stock no. 682-7034
Mfr. Part No.ZP16BU
BrandSMC
R 207.60
Each
units
ZP Bellows 16mm Urethane Rubber - - - - - - 3D CAD Model
RS stock no. 827-8810
Mfr. Part No.ZPT10BS-A5
BrandSMC
R 210.39
Each
units
ZPT Bellows 10mm Silicon Rubber - - Vertical Male Thread M5 x 0.8 - -
RS stock no. 227-3979
Mfr. Part No.ZP50BS
BrandSMC
R 295.51
Each
units
ZP Bellows 50mm Silicon Rubber - - - - - - 3D CAD Model
RS stock no. 725-377
Mfr. Part No.ZPR25CN-08-B6
BrandSMC
R 523.45
Each
units
ZPR Flat with Rib 25mm NBR - - Lateral Female Thread M6 x 1 - 3D CAD Model
RS stock no. 827-6630
Mfr. Part No.ZP50BN
BrandSMC
R 198.52
Each
units
ZP Bellows 50mm NBR - - - - - - -
RS stock no. 703-6249
Mfr. Part No.1820415037
BrandAventics
R 224.75
Each
units
BSG Bellows 20mm Fluoromethyl Silicone 5.7N - - Male Thread 1/8 in - -
RS stock no. 725-349
Mfr. Part No.ZPR50CNK10-08-A14
BrandSMC
R 1,295.52
Each
units
ZPR Flat with Rib 50mm NBR - Yes Lateral Male Thread M14 x 1 - 3D CAD Model
RS stock no. 827-6586
Mfr. Part No.ZP50UN
BrandSMC
R 86.24
Each
units
ZP Flat 50mm NBR - - - - - - -
RS stock no. 227-3856
Mfr. Part No.ZP04US
BrandSMC
R 65.34
Each
units
ZP Flat 4mm Silicon Rubber - - - - - - 3D CAD Model
RS stock no. 227-3705
Mfr. Part No.ZPR06UNK6-06-A8
BrandSMC
R 831.03
Each
units
ZPR Flat 6mm NBR - Yes Lateral Male Thread M8 x 1 - 3D CAD Model
RS stock no. 227-3913
Mfr. Part No.ZP13BS
BrandSMC
R 176.75
Each
units
ZP Bellows 13mm Silicon Rubber - - - - - - 3D CAD Model