The working process of vacuum pads involves creating a vacuum between the pad and the surface being gripped. The process can be broken down into the following steps:

Attaching the pad to the surface: The vacuum pad is placed on the surface to be gripped and held in place by a retaining mechanism, such as a threaded ring or a flange.

Evacuating the air between the pad and the surface: A vacuum source, such as an electric vacuum pump, is used to evacuate the air between the pad and the surface. As the air is removed, a pressure differential is created, which generates a secure grip between the pad and the surface.

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Maintaining the vacuum: The vacuum source continues to run to maintain the pressure differential between the inside and outside of the pad. This maintains a secure grip between the pad and the surface.

Releasing the pad from the surface: When it is time to release the pad from the surface, the vacuum source is turned off, and air is allowed to re-enter the space between the pad and the surface. This equalizes the pressure and releases the grip, allowing the pad to be removed from the surface.