History

Science and vacuum

‘Vacuous’ (vacuum) has always intrigued mankind. One striking example for this was Otto von Guericke’s experiment in 1657. He was able to create a vacuum within two hemispheres, the so called “Magdeburg hemispheres”. Even 16 horses didn’t succeed to pull them apart and to master the power of vacuum!

In 1640, Evangelista Torricelli wrote about his invention of the barometer, saying that airless vacuum was bound to exist in a vertically placed glass tube, above the mercury column of 76cm in height.

Thanks to vacuum, Thomas Alva Edison was able to build an electric light bulb in 1879. With a vacuum pump, he removed the air (so also the oxygen) out of a glass bulb. Due to the lack of oxygen, the filament didn’t burn out and the lamp could give light. Modern bulbs are filled with inert argon.

The progress

Technology is continuously under development. This for sure counts for the vacuum technology. The ultimate vacuum will never be reached, but it will always be a challenge to shift the boundaries. A century ago, it was impossible to reach a vacuum of 1 Pascal. Today, levels of 10-9 Pascal are common.

Knowledge and innovation

It is Demaco’s challenge to use the smallest technological change in the vacuum industry completely. Therefore, a lot of expertise is available within the company. We think in solutions and play innovative roles wherever possible. We are able to design and manufacture complete vacuum systems. As an active member of NEVAC (Dutch Vacuum Society), we help to increase vacuum knowledge in our branch of industry.