Electrical vacuum generation

Electrical vacuum generation describes the generation of vacuum using purely electrical devices such as vacuum pumps or vacuum blowers.

This technology is not only an alternative to compressed air-driven ejectors, but also enables flexible use in many other areas of application.

Operation mode and design of electrical vacuum generators

An electric vacuum generator generates vacuum using an electrically driven vacuum pump or vacuum blower - completely without compressed air. While pneumatic systems use electrically generated compressed air, for example according to the Venturi principle, to generate vacuum, electric vacuum pumps and vacuum blowers create the vacuum directly in the device. The vacuum pump or vacuum blower sucks air molecules (gas particles) out of an enclosed space until the pressure inside drops below atmospheric pressure and a vacuum is created. Depending on the application, different principles of operation are used, such as the diaphragm pump, rotary vane pump, claw pump or side channel blower.

To meet the requirements of automation, Schmalz combines these electrical devices with additional technology. Sensors monitor the vacuum, the control system adapts the power to the actual demand and process data can be transferred to higher-level systems via digital communication interfaces such as IO-Link or fieldbus.

As vacuum generation is completely electrical, no complex compressed air infrastructure is required in addition to the electrical energy source. This means that electrical vacuum generators can be used anywhere and are particularly flexible.

Industry examples: Packaging, wood and logistics

In the packaging industry, electrical vacuum generation enables efficient pick and place applications and reliable end-of-line processes. Thanks to the software-supported adaptation of parameters, format changes can be implemented quickly, allowing systems to work more productively and remain competitive.

The technology also shows its strengths in wood processing. When gripping, clamping and moving sheets or beams, a stable vacuum ensures safe processes in sawmills, joineries and automated furniture production. This means that even large and porous workpieces can be handled safely.

In logistics, electrical vacuum generation supports modern intralogistics processes, such as the handling of pallets or warehouse picking. Flexible vacuum systems enable quick adaptation to different flows of goods and thus contribute to smooth and energy-efficient control of the material flow.

Related terms

Claw pump

Claw pumps are dry vacuum generators that generate vacuum without oil.

Diaphragm pump

The diaphragm pump is an electrical vacuum generator with a flexible diaphragm. It has a compact design, requires little oil during operation and is low-maintenance.

Rotary vane pump

The rotary vane pump is a vacuum generator that uses rotating vanes to reliably generate vacuum and can be used for a wide range of applications.

Side channel blower

Side-channel blowers, also known as side-channel compressors, ensure stable vacuum performance in production and automation with their special flow principle.

Further information