Johannes Maerz – pioneer of the famous Maerz furnace design

History of ANDRITZ Maerz GmbH, Germany

100 years of Maerz furnaces

Johannes Maerz – pioneer of the famous Maerz furnace design

2011	100 years of Maerz furnaces
	Regenerative Maerz heating systems are developed
	Maerz burner as an innovation in environmentally friendly heating technology
2010	Large-scale continuous furnaces are added to the product portfolio
2009	Completion of a shaft furnace concept for generator shafts
	Development of Maerz TBRC (Top Blown Rotary Converter) for the copper industry and modern cooling elements for copper furnace systems
2008	Split from location in Tägerwilen, Switzerland
	ANDRITZ GROUP acquires the Düsseldorf location
	Name change to ANDRITZ Maerz GmbH
2005	Development of an elliptical MAERZ anode furnace for the copper industry
2004	Development of the double-chamber furnace
2003	Development of the ideal car bottom forging furnace
2000	Take-over by Hochtemperatur Engineering GmbH (HTE)
	Design of first energy-optimized Maerz heating furnace for copper slabs
	Execution of a fully automated heat treatment system for high-speed railway wheels
1998	Acquisition of Gautschi Electro-Fours S.A., Tägerwilen, Switzerland
	New “Aluminium furnaces” business unit
	Name change to MAERZ-Gautschi Industrieofenanlagen GmbH, Düsseldorf and Tägerwilen
1962	Relocation to the office building in Düsseldorf, Germany
	Heating furnaces and heat treatment furnaces for steel are added to the business
	Development of the Maerz double walking beam furnace for heat treatment of heavy plate
1955	Company headquarters are moved from Krefeld to Düsseldorf
1950	Glass and copper melting furnaces are added to the business
1941	The engineering office is taken over by Österreichische Magnesit AG Munich (later Veitsch-Radex AG / RHI AG, Austria)
	Foundation of Maerz Ofenbau GmbH
	Supply of Siemens-Martin furnaces and furnaces for the production, treatment, and processing of steel, metals, and other products
1911	Johannes Maerz (1873 - 1941) establishes an engineering office for open-hearth furnaces in Kattowitz, Silesia (later located in Berlin), focusing on the construction of Siemens-Martin furnaces