Extremely large turndown leads to high efficiency gains - AT250-0.9 S G5plus

Start of series production for the new Aerzen turbo package AT250-0.9 S G5plusExtremely large turndown leads to high efficiency gains

With the AT250-0.9 S G5plus, AERZEN is setting new standards in the field of turbo blowers.

At its premiere during the IFAT Trade Fair in May 2024, it already met with great interest: the Aerzen AT250 turbo blower stage. Series production of the AT250-0.9 S G5plus turbo package is now starting, with which AERZEN is setting new standards, particularly in terms of turndown and efficiency.

The AT250-0.9 S G5plus covers an extremely large turndown of 1:5 for a turbo and delivers a volume flow of up to 155 m³/min. “With a good turbo machine like our predecessor model AT200 and favourable turbo characteristics, the turndown is 1:3. With 1:5, we are getting even closer to the classic positive displacement blowers and screw blowers,” explains Steffen Helmert, AERZEN turbo blower Product Manager. Another difference to all competitors in the turbo business: the AT250 from AERZEN impresses with its consistently high efficiency across the entire turndown.

“In terms of energy, we are ahead in the market, and we can regulate the volume With the AT250-0.9 S G5plus, AERZEN is setting new standards in the field of turbo blowers. With the AT250, AERZEN continues to offer the most compact turbo package on the market. flow range very widely,” emphasises Stephan Brand, AERZEN Director Turbo Business. The maximum differential pressure is 900 mbar, the speeds range up to 26,000 rpm.

Still the most compact in the market

To achieve the targeted technological advances with the Aerzen Turbo, the heart - i.e. the turbo blower stage - has been completely redesigned. A look under the hood of the package reveals, among other things, the significantly larger volute casing. Because even more air has to be sucked through the new machine, some changes have also been made to the sound insulation: to effectively reduce the intake noise, for example, the filter surface was extended with stationary louvres in the intake area. The AT250 also uses a new, even more powerful size of multilevel VFD. Despite all the adjustments, the development team has succeeded in ensuring that AERZEN can continue to offer the most compact turbo package available in the market. “We have only slightly adjusted the basic dimensions,” says Steffen Helmert.

The new control system, which AERZEN is bringing on board for the first time with the AT250, is an added value feature. Customers can look forward to optimised hardware and a modernised visualisation of the HMI (human- machine interface) with a modified menu structure and additional functions. With its maximum energy efficiency, the Aerzen Turbo AT250 is the right solution for many different processes: be it for oxygen input in the water and wastewater sectors, for cooling and combustion air in industry, or for fermentation in yeast production. “Our turbo is increasingly in demand in these and other sectors,” says Stephan Brand - and that’s why the next turbo development project is already underway at AERZEN. The result will be on show for the first time at the next IFAT in May 2026.

“With the performance data of the new AT250 model, Aerzen Turbo has a compelling proposition in the market.” Steffen Helmert, AERZEN Product Manager turbo blowers