Milestones
Whether Wilhelm Meyer, who was the first on the continent to have positive displacement blowers made using the Roots method, Hermann Allstaedt, the Managing Director during the 1930s who focused production consistently on blowers, pumps and gas meters,or Hasso Heller, who founded the first subsidiary Aerzen France in 1968 to set the company on course for internationalisation – over the last 150years we “Aerzeners” repeatedly took brave decisionsto put us a step ahead of the competition.
1864

Aerzener Maschinenfabrik is founded by the manufacturer and graduated businessman Wilhelm Meyer.
1868

Since 1868, all the castings for machines made in Aerzen were produced in the factory’s own iron foundry.
1868

From 1868 onwards the company produces the first positive displacement blowers produced on the European continent using the method developed by Francis Marion Roots – blowers that are far more efficient than conventional machines.
1872

Wilhelm Meyer leaves the company and surrenders it to his younger brothers Sigmund and Emil.
1887

The fabrication program includes Positive Displacement blowers, steam locomobiles, threshing machines, fodder chopping machines, hay makers, circular saws and portable forges.
1894

The production of agricultural machines is stopped, the production of blowers increases. Supply of cupola melting furnaces, foundry machines, complete forging devices and brewery machines.
1897

The connection of Aerzen to the rail network guarantees a further uptrend.The 5,000th positive displacement blower is manufactured and sent to Berlin by railway.
1907

Conversion of the Aerzener Maschinenfabrik into an exempt private company. Hermann Allstaedt becomes Managing Director and first associate.
1909

Aerzener Maschinenfabrik has innovations patented: the “modern dust removal system” (by means of a tube system an Aerzen positive displacement blwoer installed in the cellar removes the dust from curtains, carpets and furniture) and silencers for blowers.
1926

The generation of rotary piston pumps is introduced on the market: The shape of the rotors is similar to the shape of the rotary pistons of the blowers. They distinguish themselves by symmetrical, two-lobe profiles, which enables them to convey thick as well as thin liquids.
1930

In the difficult period of the world economic crisis in Aerzen the production of rotary piston gas meters starts, a decisive step on the path towards a special factory for positive displacement machines and thus out of the economic crisis.
1936

The 20.000th blower is produced.
1941

In the middle of the Second World War, in 1941, Karlheinrich Heller assumes the management of the company from his father-in-law, Hermann Allstaedt, and begins the development of the first screw compressors.
1943

Screw compressors working according to the Lysholm-principle are produced. With initially oil-free handling with internal compression they achieve higher compression ratios than positive displacement blowers.
1959

Shortly after the inauguration of a new production hall the 100,000th positive displacement blower leaves Aerzener Maschinenfabrik.
1960

After the sudden death of Karlheinrich Heller in July 1960 Paul Grote takes over the management of the company for five years and leads Aerzener Maschinenfabrik through the 100th anniversary of the company.
1965

Hasso Heller, only son of Anneliese and Karlheinrich Heller, becomes managing director.
1968

Serial production of oil injected screw compressors for the refrigeration industry.
1969

With Aerzen France S.A.R.L. Hasso Heller founds the first foreign subsidiary company of Aerzener Maschinenfabrik.
1971

1973

Formation of the subsidiary Aerzen Machines Ltd.
1975

1978

The world’s largest positive displacement blower (conveying volume 84.000 m³/h) built for steel production. Up to now totally 150 blowers of this type were manufactured and are used worldwide. Formation of the subsidiary Aerzen Nederland BV.
1982

Market introduction of compact blower II
Formation of the subsidiaries Emmerthaler Apparatebau GmbH and Aerzen Ibérica S.A.
1983

Formation of the subsidiaries Aerzen USA Corporation and Aerzen Belgium N.V.
1984

The world’s largest screw compressor (conveying volume 65.000 m³/h) built for and supplied to the chemical industry.
1985

Foundation of Airgas Compressor in South Africa.
1987

Aerzen develops positive displacement blowers with internal pulsation dampening, this milestone in the design of blowers was patented to the Aerzener Maschinenfabrik GmbH accordingly Formation of the subsidiaries ASP Aerzen Special Products BV and Aerzen Canada Blowers Compressors Inc.
1990

1991

Formation of the subsidiary Aerzen Schweiz AG.
1993

Formation of the subsidiary Aerzen Austria Handelsgesellschaft mbH.
1994

Serial production of the new blower unit DELTA BLOWER starts.
1996

New screw compressor series DELTA SCREW presented to the market.
1997

VARISCREW, the new generation of compressors for refrigeration has been developed and produced.
1999

Formation of the subsidiaries Aerzen do Brasil Ltda and Aerzen Svenska AB (since 2011 Aerzen Scandinavia AB)
Presentation of the world novelty VARISCREW+ - the first semihermetic refrigerating compressor even for ammonia applications.
2000

Change to the 4th generation:
Klaus-Hasso Heller, Master in Business and Engineering, takes the lead of the Aerzen group of companies as Chief Executive Officer.
Formation of the subsidiaries Aerzen International Sales GmbH (change of name: Aerzener Maschinenfabrik Verwaltungs- und Beteiligungsgesellschaft mbH is called Aerzen International Sales GmbH since July 2007) and AIR Aerzen International Rental BV.
2002

Formation of the subsidiaries Aerzen Slovakia SRO and Aerzen CZ SRO.
For the optimisation of the production process the new workshop hall 4F is built.
2003

New compressed air compressor series DELTA TWIN is presented to the market.
2004

Formation of the subsidiary Aerzen Asia PTE.LTD.
2006

Formation of the subsidiaries Aerzen Makine Sanayi Ve Ticaret Ltd. Sti., Aerzen Machines (India) Pvt. Ltd. and Abaris Blower Repair N.V.
2007

Formation of the subsidiary Aerzen Italia S.r.l.
2008

Formation of the subsidiaries Aerzen RUS and Aerzen Romania S.R.L.
03.04.2008 opening of the new production-center.
2008

2009

New water-injected technology from AERZEN (VMW).
Formation of the subsidiaries Aerzen Chile SPA, Aerzen Gulf and Aerzen Systems GmbH.
2010

Market introduction of the first rotary lobe compressor series Delta Hybrid.
Formation of the subsidiary Aerzen Adria d.o.o.
2011

Besides Klaus-Hasso Heller, the Master of Business and Engineering Bernd Wöhlken and engineer Björn Irtel, both of them long-term employees of Aerzener Maschinenfabrik, become managing directors.
2012

Formation of the subsidiary Aerzen Australia Pty. Ltd.
2013

Formation of the subsidiary Aerzen Taiwan Machinery.
2014

"150 years" Aerzener Maschinenfabrik GmbH In our anniversary year,
we are presenting ourselves with this new philosophy:
2015

The four compressors of the new series Delta Screw E compressor has been extended by AERZEN with two additional sizes now available. The new models VM 30 and VML 35 cover the lower volume flow range of the series and are the perfect addition to the Delta Screw compressor packages with belt drive. This new series of E compressor includes 6 sizes in the volume flow range from 330 m³/h to 7,000 m³/h
2016

The new superior machine control AERsmart optimally distributes the air volumes to the AERZEN technologies Blower, Hybrid and Turbo and their individual efficiencies. Result: stand-alone efficiency values close to the theoretical optimum. Additional savings of up to 15%. Integration also of third-party products.
2017

AERZEN develops an innovative modular system for large blowers
With the innovative "Alpha Blower" series of large blowers, AERZEN is now expanding its product range in the process air stages. With 104 model variants, the series offers a high degree of flexibility for numerous customer applications. Just always rightsized!