In Winterthur we are operating 6 high-vacuum furnaces with quenching pressures up to 6bar N2 (abs.), resp. 4bar Ar (abs.).
Usable work space ranges from 300x300x500mm³ up to Ø1500x1800mm³. Max. work load is 2000kg with max. process temperatures up to 1400°C.
Our furnaces are operating under vacuum conditions down to 10^-5mbar.

Protective gas:
Protective gas atmosphere brazing processes can be performed in Ar/N₂/H₂-gas atmosphere up to T_max=1200°C.
Workspace is Ø1000x1200mm³ with a max. work load of 2000kg.
 
Nitriding/nitrocarburizing:
Our gas nitriding furnace has a usable work space of Ø1000x1200mm³.
In total, components with max. weight of 2000kg can be processed.
 
Air-circulating furnaces:
Operated air-circulating furnaces have a work space of Ø500x900mm³, resp. Ø2000x2000mm³. Depending on process temperatures loads up to 8000kg can be treated.

Thermal spraying:
2 spray cabinets equipped with buckling arm robots and turntables enable coating of components up to a size of Ø800x1000mm³ and a max. weight of 600 kg.
Processes: Plasma spraying (APS), arc-wire spraying, wire- and powder flame spraying.

Electron beam welding:
Since the beginning of the year 2009 Listemann AG is equipped with a new powerful plant for EB welding. Besides the already used efficient small machine which can be run with a maximum beam power of 3 kW (work space of 300x300x300mm³ ), a new system has been installed to fulfill the high demands as a competent supplier of our customers. 
The working chamber with dimensions of 2.600 mm x 1.250 mm x 1.500 mm (approx. 5 m3) and a beam power of 15 kW allow joining parts which range up to 1 m in diameter or height and about 2 m in length. The maximum welding depth is about 50 mm for steel and 100 mm for aluminum.