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.
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.

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Part Details Brand Manufacturer Series Pad Type Pad Diameter Pad Material Holding Force Vacuum Entry Direction Connection Type Threaded Connection Size Tube Outside Diameter
NBR flat pad for suction cup,6mm dia SMC ZP Flat 6mm NBR - - - - -
SMC 16mm Bellows Silicon Rubber Suction Cup ZP16BS SMC ZP Bellows 16mm Silicon Rubber - - - - -
SMC 13mm Bellows Silicon Rubber Vacuum Cup ZP13BS-X19
  • RS Stock No. 827-8781
  • Brand SMC
  • Mfr. Part No. ZP13BS-X19
SMC ZP Bellows 13mm Silicon Rubber - - - - -
SMC 25mm Flat with Rib Silicon Rubber Vacuum Cup ZP25CS SMC ZP Flat with Rib 25mm Silicon Rubber - - - - -
Aventics 20mm Bellows Fluoromethyl Silicone Suction Cup 1820415037 Aventics BSG Bellows 20mm Fluoromethyl Silicone 5.7N - Male Thread 1/8 in -
SMC 25mm Bellows Silicon Rubber Suction Cup ZP25BS SMC ZP Bellows 25mm Silicon Rubber - - - - -
SMC 16mm Flat Silicon Rubber Vacuum Cup ZP16US SMC ZP Flat 16mm Silicon Rubber - - - - -
SMC 10mm Bellows Silicon Rubber Suction Cup ZP10BS SMC ZP Bellows 10mm Silicon Rubber - - - - -
Vacumm Suction Pad Adapter, 2-8mm, M5
  • RS Stock No. 827-6567
  • Brand SMC
  • Mfr. Part No. ZPT1-B5
SMC ZPT - 2 → 8mm - - Vertical Female Thread M5 x 0.8 -
SMC 25mm Flat with Rib NBR Suction Cup ZP25CN
  • RS Stock No. 725-412
  • Brand SMC
  • Mfr. Part No. ZP25CN
SMC ZP Flat with Rib 25mm NBR - - - - -
SMC 50mm Bellows Silicon Rubber Suction Cup ZP50BS SMC ZP Bellows 50mm Silicon Rubber - - - - -
SMC 8mm Bellows NBR Suction Cup ZP08BN SMC ZP Bellows 8mm NBR - - - - -
SMC 8mm Bellows Silicon Rubber Suction Cup ZP08BS SMC ZP Bellows 8mm Silicon Rubber - - - - -
SMC 8mm Bellows Silicon Rubber Vaccum Pad ZPT08BS-A5
  • RS Stock No. 827-8790
  • Brand SMC
  • Mfr. Part No. ZPT08BS-A5
SMC ZPT Bellows 8mm Silicon Rubber - Vertical Male Thread M5 x 0.8 -
SMC 6mm Flat Silicon Rubber Suction Cup ZP06US SMC ZP Flat 6mm Silicon Rubber - - - - -
SMC 13mm Bellows Silicon Rubber Suction Cup ZP13BS SMC ZP Bellows 13mm Silicon Rubber - - - - -
NBR flat pad for suction cup,2mm dia SMC ZP Flat 2mm NBR - - - - -
NBR flat pad for suction cup,4mm dia SMC ZP Flat 4mm NBR - - - - -
Vacuum Pad, 32mm Dia, Bellows type, NBR SMC ZP Bellows 32mm NBR - - - - -
SMC 50mm Flat with Rib NBR Suction Cup ZPR50CN-08-B8
  • RS Stock No. 725-383
  • Brand SMC
  • Mfr. Part No. ZPR50CN-08-B8
SMC ZPR Flat with Rib 50mm NBR - Lateral Female Thread M8 x 1.25 -
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