QYR Market Research Global Vacuum Suction Cups market research | Page 4

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• Suction cups are used to grip and move workpieces in a plant or on a
robot. A suction cup does not attach itself to the surface of a
workpiece. Instead, the ambient air pressure (atmospheric pressure)
presses the suction cup against the workpiece as soon as the
ambient pressure is greater than the pressure between the suction
cup and the workpiece. This pressure difference is achieved by
connecting the suction cup to a vacuum generator, which evacuates
the air from the space between the cup and the workpiece. If the
suction cup is in contact with the surface of the workpiece, no air
can enter it from the sides and a vacuum is generated.