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
RS Stock No. 703-6258
Mfr. Part No.1820415039
BSG Bellows 20mm Acrylonitrile Butadiene Rubber 5.7N - - Male Thread 1/8 in -
RS Stock No. 703-6223
Mfr. Part No.7320500000
FSR Flat 50mm Chloroprene Rubber 64N - - Female Thread 1/8 in -
RS Stock No. 703-6242
Mfr. Part No.1820415029
1 Bag of 2
BSG Bellows 10.4mm Fluoromethyl Silicone 0.95N - - Male Thread 1/8 in -
RS Stock No. 703-6236
Mfr. Part No.7321000000
FSR Flat 100mm Chloroprene Rubber 304N - - Female Thread 3/8 in -
RS Stock No. 703-6249
Mfr. Part No.1820415037
BSG Bellows 20mm Fluoromethyl Silicone 5.7N - - Male Thread 1/8 in -
RS Stock No. 703-6233
Mfr. Part No.1820455018
FSG Flat 80mm PUR 260N - - Male Thread 1/4 in -
RS Stock No. 703-6245
Mfr. Part No.1820415035
1 Bag of 2
BSG Bellows 15.6mm Acrylonitrile Butadiene Rubber 2.3N - - Male Thread 1/8 in -
RS Stock No. 703-6227
Mfr. Part No.7320750000
FSR Flat 75mm Chloroprene Rubber 160N - - Female Thread 1/4 in -