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Oerlikon Leybold Vacuum Has Refined Its Dryvac Vacuum Pump Systems

| Author / Editor: Klaus Buhlmann / Dr. Jörg Kempf

Vacuum Power! Oerlikon Leybold Vacuum has refined its Dryvac vacuum pump systems.
Gallery: 4 Pictures
Vacuum Power! Oerlikon Leybold Vacuum has refined its Dryvac vacuum pump systems. (Picture: Oerlikon Leybold Vacuum, Martin Capek - Fotolia, [M]-Sahlmüller)

The recipe is simple and efficient: Take a dry compressing screw vacuum pump and a roots pump, combine both of the proven technologies along with pressure measurement, filtration, shut-off devices and electrical control, creating a turn-key smart vacuum system that is cost-effective and completely ready for use by the customer — for a variety of applications.

For more than five years, the fore vacuum systems of the Dryvac pump series by Oerlikon Leybold Vacuum are already being used successfully in various processes, which can be simple or very challenging. The pumping systems are known for their maximum suction capacity while operating at minimum operating costs.

In coating technology, for example, the Dryvac vacuum technology is primarily used in the manufacturing of LCD-OLED displays, solar cells and special glasses. In the industrial sector, typical focal points of application are in metallurgy, freeze-drying of foodstuff or e.g. in the manufacturing process of lithium-ion batteries. Thanks to their reliability and low operating costs, Dryvac pumps are more and more replacing standard oil-sealed vacuum pumps and also liquid ring vacuum pumps. Other advantages are high gas flow rates, availability of the standard products, low space requirement, and the capability to realize short cycle times.

Now, Leybold has developed the systems further: The new two-stage Dryvac systems distinguish themselves particularly by their modular design and the resulting improved user friendliness and easy servicing. All equipment features are aligned to the requirements of the different markets.

The Leybold difference: as vacuum specialists, Leybold has “simply” combined two pump types in an intelligent and optimized way — the Dryvac screw vacuum pumps and the Ruvac roots-vacuum pumps. The rotary blowers handle very high volume flows across a large pressure range. In the process, a suction capacity of between 2000 and 9800 cubic meters per hour is realized.

When Vacuum Power Is in Demand

Where is such a high suction power required? An example: The electro-mobility-triggered increasing demand for secondary batteries makes large suction capacity especially interesting for the manufacturing process of lithium-ion batteries. While formerly vacuum chambers had volumes of a few hundred liters for dehumidification of electrode material for laptops, tablets and mobile phone batteries, the chambers now exceed volumes of several cubic meters and therefore require correspondingly adapted, large suction capacities. From the process technology point of view, organic solvents must be taken into account. In this respect, the Dryvac systems offer comprehensive options for process safety and for protection of the vacuum pump system.

The Dryvac systems can optionally be equipped with frequency converters to increase the suction capacity through increased speed. For manufacturers of complex battery-manufacturing systems, different rated voltages and frequencies at the different production locations means additional design and construction expenses. The Oerlikon Leybold Vacuum specialists, therefore, recommend using pumps with frequency converter. Even potential changes in the manufacturing process itself can then be simply mastered.

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