The Graphite Furnace HTK GR operates with rough/fine vacuum, protective gases such as Nitrogen/Argon, and reactive gases like Hydrogen and Carbon Monoxide. The Graphite Furnace HTK GR cannot operate in an Oxygen atmosphere due to the Graphite insulation.
The rectangular design with a front door allows for easy loading and unloading. The HTK GR range is available in up to six different sizes. The smallest designs with a capacity of 8 litres and 25 litres are typically employed by laboratories for research and development. The 80 litre, 220 litre, 400 litre or 600 litre furnaces are predominantly used as pilot manufacturing systems or large scale production.
The HTK GR is based on Graphite insulation material, as well as graphite heating elements. With maximum temperatures up to 2200 °C, the HTK GR is suited for extreme heat treatment needs. Upon request, the system can be equipped with a Graphite retort that is capable of a defined gas guiding flow within the unit and improves temperature uniformity to < ± 10 °C. For processes with strong outgassing, the retort protects the heating elements and increases the lifetime of the furnace.
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