Ultrawatt high density cartridges are stainless steel heating cylinders: the core is a nickel-chrome resistive wire wound between a pre- compressed magnesium oxide support and an oxide layer of magnesium oxide powder. This unique technology ensures high thermal transmission and excellent dielectric properties at elevated temperatures. The special manufacturing process of Ultrawatt cartridge heaters, along with the use of the highest quality materials, allows to achieve very high operating temperatures (up to 750° C) also under severe environments conditions. Different applications require different technical specifications this is why there is a wide range of Ultrawatt Cartridges from Ø 6,35 mm to Ø 20 mm.