The construction of high temperature cartridge heaters positions a nickel-chrome resistance wire precision wound around a magnesium oxide core. It is inserted into a stainless or Incoloy tube locating the resistance wire close to the sheath. The core is centrally positioned within the tube and filled with magnesium oxide powder. Nickel pins pass through the centre of the core making contact with the resistance wire at both ends. The whole is assembly is highly compacted by a swaging operation and thus ensuring excellent heat transfer to the external sheath. This allows for operating temperatures to 1600oF and high watt densities. One end of the heater is closed with a welded metal end-disc and wire leads exit at the opposite end which is typically closed with a lava seal. A variety of wire leads and lead protection options are available. Heaters can be supplied with internal thermocouples, mounting fittings and many other options.

高溫筒式加熱器的建造位置是一個鎳鉻電阻線精密纏繞在氧化鎂芯周圍。它入到一個不銹鋼或 Incoloy 管定位電阻導線接近鞘。核心是集中定位在管內, 并填充氧化鎂粉。鎳銷通過中心的核心與電阻線兩端接觸。整體是裝配是高度緊湊的搖晃的操作, 從而確保良好的傳熱到外部鞘。這允許工作溫度1600oF 和高瓦特密度。加熱器的一端用焊接金屬端板和導線引線出口關閉, 在相反端, 通常用熔巖密封封閉?？商峁└鞣N導線引線和引線保護選項。加熱器可以提供內部熱電偶, 安裝配件和許多其他選項。