Contact
QR code for the current URL

Press release Box-ID: 844795

Aerzener Maschinenfabrik GmbH Reherweg 28 31855 Aerzen, Germany http://www.aerzen.com
Contact Mr Sebastian Meißler +49 5154 819970
Company logo of Aerzener Maschinenfabrik GmbH
Aerzener Maschinenfabrik GmbH

A breath of nothing is decisive: AERZEN Turbo blowers with air bearings provide clear advantages compared to blowers with magnetic bearings

(PresseBox) (Aerzen, )
Aeration tanks for wastewater treatment must be continuously provided with large air volumes. Turbo blowers offer here energy-efficient solutions. AERZEN has developed an amazingly simple method for the fast-rotating Turbo blowers - air bearings.

The construction of AERZEN Turbo blowers is quite simple: A blade wheel, aerodynamically optimised and located directly on the motor shaft, rotates in a spiral housing thus generating the volume flow. The particular challenge of this technology is the high speed range from 20,000 to 70,000 rpm. Besides special motors and a frequency converter, the shaft bearing is an important issue. Standard industrial roller bearings are not appropriate for the occurring loads.

AERZEN has found an optimal solution for this problem: The two radial bearings of the drive shaft and the thrust bearing for absorbing axial forces have contact-free air bearings. The shaft rotation generates, as the turbo blower is started, an eccentric circular motion in the air gap between shaft and bearing through natural imbalance, compressing the air in the gap. With increasing speed, the axis centres itself and is held in contact-free position by an air pressure of over 30 bar. This system is completed by a two-component coating, free of maintenance, which serves as friction partner between the highly finished surfaces when the turbo machine is started and the air cushion is formed within fractions of a second. The PTFE layer provides good sliding properties - lubricant-free. A sheet steel, when rolled into an undulating shape, supports the lubricating layer of the bearing and absorbs vibrations to protect the housing.

Turbo blowers of other manufacturers use magnetic bearings. Magnetic bearings basically work as good as air foil bearings, but they have many disadvantages compared to the AERZEN bearings: The solenoids, arranged circularly, require a highly complex control system and an uninterrupted power supply. This makes the magnetic bearing expensive and more maintenance is required, which

considerably increases life-cycle costs. As a matter of fact, the complex system of magnetic bearings is likely to be subject to errors than the air foil bearing system is. The air bearing principle does not require any electrical, mechanical or pneumatic controls. This system is of simple design. It works efficiently, inexpensive and requires only low maintenance.

Website Promotion

Website Promotion

Aerzener Maschinenfabrik GmbH

Industrial plants all over the world are provided with gaseous media using AERZEN blowers and compressors. The innovative AERZEN machine technology represents experience of more than 150 years company history. The range of products includes rotary lobe compressors, positive displacement blowers, turbo blowers, screw compressors and gas meters. AERZEN blowers, compressors and gas meters are tested and certified according to DIN EN ISO 9001. There is a variety of product offerings from standard products to customised solutions.

In addition, the AERZEN After Sales Service offers the complete range of services - from the full maintenance contract to repairs and upgrade of existing plants.

The publisher indicated in each case is solely responsible for the press releases above, the event or job offer displayed, and the image and sound material used (see company info when clicking on image/message title or company info right column). As a rule, the publisher is also the author of the press releases and the attached image, sound and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.
Important note:

Systematic data storage as well as the use of even parts of this database are only permitted with the written consent of unn | UNITED NEWS NETWORK GmbH.

unn | UNITED NEWS NETWORK GmbH 2002–2022, All rights reserved

The publisher indicated in each case is solely responsible for the press releases above, the event or job offer displayed, and the image and sound material used (see company info when clicking on image/message title or company info right column). As a rule, the publisher is also the author of the press releases and the attached image, sound and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.