Kanthal – Electric Heaters and Globars

Kanthal is the brand for Sandvik’s heating technology products and services. The Kanthal brand belongs to the Sandvik Group, a high-technology engineering group with expertise in areas such as industrial heating and materials technology.

Heating Elements

SUPER MOSI2 HEATING ELEMENTS

High-power electric molybdenum disilicide (MoSi2) heating elements for element temperatures up to 1850°C (3360°F). Kanthal Super MoSi2 heating elements are available as straight or bent elements in a wide range of shapes and sizes, all characterized by long life and consistent performance.

The Kanthal program of MoSi2 heating elements includes seven grades with specific features for use in demanding applications and atmospheres, including nitrogen, hydrogen, vacuum and mixtures of endogas and reducing atmospheres.

In addition to MoSi2 elements in standard shapes and sizes we provide special designed MoSi2 elements according to customer needs, enabling an optimized element design for each particular application.

GLOBAR SIC HEATING ELEMENTS

Silicon carbide (SiC) electric heating elements for element temperatures up to 1625°C (2927°F), available in a wide variety of standard sizes and geometries, or in customized designs to meet the specific needs of various processes and equipment.

Kanthal Globar SiC heating elements are capable of high power output, and may be mounted either vertically or horizontally. Because the element material remains rigid even at the maximum operating temperatures, no special supports are required, which simplifies the design of the equipment.

The Kanthal program includes several types of silicon carbide (SiC) heating elements for float baths used in the manufacture of soda-lime flat glass for architectural, automotive and solar-glass applications. Special float elements for flat panel display glass are also supplied.

METALLIC HEATING ELEMENTS

Ready-made metallic heating elements made from wire or strip in Kanthal iron-chromium-aluminium alloys or Nikrothal nickel-chromium alloys for element temperatures between 50-1425°C (120-2600°F).

We can manufacture metallic heating elements to any specifications and with short delivery times. Examples of element types are:

  • Coiled elements (i.e. spiral elements and edge-wounded elements)
  • ROB – Meander elements
  • Cartridge elements (i.e. bundle rod elements and cage elements)
  • Tubothal heating element

Kanthal and Alkrothal FeCrAl alloys are characterized by high resistivity and capability to withstand high surface load. They can be used at maximum element temperature of 1425°C (2600°F).

The NiCr-based alloys are characterized by very good mechanical properties in the hot state as well as good oxidation and corrosion properties. They are suitable for element temperatures up to 1250°C (2282°F).

Using Kanthal FeCrAl alloys instead of NiCr alloys results in both weight-saving and longer element life, leading to considerable cost savings.

Heating Modules

SUPER MOSI2 HEATING ELEMENTS

Prefabricated heating modules consisting of vacuum-formed ceramic fibre with an integral Kanthal Super molybdenum disilicide (MoSi2) heating element for up to 1750°C (3180°F) element temperature.

Superthal heating modules are intended for use in laboratory or production furnaces/heaters wherever concentrated heat is needed. They also provide major energy savings in several applications. The flexibility of the heating modules allows for different tests and processes to take place in the same furnace set-up.

Advantages compared to conventional furnaces

  • Fast and easy to install and replace
  • Quick temperature ramping
  • Accurate temperature profiles
  • Very high power concentration
  • Long service life

FIBROTHAL HEATING MODULES

Prefabricated heating modules with metallic heating elements and vacuum-formed ceramic fiber insulation for up to 1350°C (2460°F) element temperature.

The construction method of Fibrothal heating modules ensures accurate positioning of the coils and eliminates the distortion or other problems connected to the conventional open coil elements in grooves or on tubes. Fibrothal heating modules also provide major energy savings in several applications.

Advantages compared to conventional furnaces

  • Fast and easy to install and replace
  • Increased insulation
  • Less maintenance
  • Very flexible
  • High power concentration
  • Huge constructions possible

Typical application areas

  • Hardening of steel
  • Heat treatment of steel
  • Glass manufacturing
  • Semiconductor manufacturing
  • Laboratory furnaces

MODUTHAL HEATING MODULES

Prefabricated heating modules with metallic heating elements and non-electrically conductive, dense ceramic insulation for use at element temperatures up to 1350°C (2460°F).

The construction method of Moduthal heating modules ensures accurate positioning of the coils and eliminates the distortion or other problems connected to the conventional open coil elements in grooves or on tubes.

A fibre-free version of Moduthal heating modules is available for up to 1250°C (2280°F) element temperature.

Advantages compared to conventional furnaces

  • Fast and easy to install and replace
  • Fully interchangeable
  • High surface load
  • Superior element support
  • Excellent heat distribution
  • Long service life

Typical application areas

  • Processing of aluminium and other non-ferrous metals
  • Pre-heating of steel and non-ferrous metals
  • Glass manufacturing
  • Wire annealing furnaces
  • Crystal growing