Przypuszczam, że to jest piec do obróbki cieplnej podobny do pieca produkcji firmy SOLO.
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Note added at 4 hrs (2017-05-24 17:36:55 GMT)
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Electric tempering furnace under protective atmosphere Furnace type: SOLO Swiss 6RCg Process: Tempering under nitrogen Sector: Tools Country: Switzerland Technical data Working Temp.: 600 °C Number of heating zone: 1 Power input: 59 kW Heating power: 56 kW Water consumption: 150 l/h Advantages Lightweight insulation Furnace is equipped with a convection cylinder and a turbine to force the circulation of the protective gas, which accelerates the heating up and ensures a uniform temperature throughout the load Regulation of the protective furnace atmosphere by adding specific gases according to the heat treatment requirements being performed Furnace is supplied as a complete unit Grandes-Vies 25, 2900 Porrentruy, Switzerland

http://img.directindustry.com/pdf/repository_di/27674/solo-f...
http://pdf.directindustry.com/pdf/solo-swiss-sa/solo-furnace...