Due to an extension completed in 2018, Petäjäveden Metalli Oy can now also provide the heat treatment of products.
The heat treatment furnace was delivered by Heatmasters, a Finnish manufacturer of furnaces. The temperature in the furnace is controlled by Heatmasters HM-Rigel 26 control system, which ensures precise heat adjustment during temperature increase, hold and decrease. Each heat treatment job is recorded in a heating certificate, which confirms that the work has been completed correctly. The furnace is calibrated by the machine supplier (every six months) and also meets the NORSOK standard developed by the Norwegian crude oil industry.