Atmosphere and atmospheric pressure
Our earth is surrounded by a layer of air several kilometres thick. The weight of this air mass presses down on the earth's surface and creates a pressure called atmospheric pressure.
At sea level, the atmospheric pressure is 1,013 mbar. A mass of approx. 10,000 kg acts on every square metre.
The higher you go, the thinner the air becomes and the atmospheric pressure drops. Up to 2,000 metres above sea level, the atmospheric pressure drops by 12.5 mbar per 100 metres.
Vacuum and vacuum level
Vacuum is defined as an absolutely empty space. Evacuating the air in a closed vessel creates a negative pressure compared to atmospheric pressure. The vacuum level is a measure of this negative pressure. At absolute vacuum, the pressure is 0, and this is the starting point for the term absolute pressure.
Negative pressure / vacuum
With negative pressure, the atmospheric pressure is a potential source of energy. In an ordinary hoover, the air is evacuated so that the pressure is lower than atmospheric pressure.
The principle of our devices is that a vacuum is created between a suction plate, which is sealed with a seal, and the workpiece.
between a suction plate, which is sealed, and the workpiece by a vacuum generator. The atmosphere then presses the workpiece against the support. The load-bearing capacity of the suction plate increases in proportion to the pressure difference between the atmospheric pressure and the vacuum in the suction plate.
