Industrial Heating Elements Kanthal / Kanthal AB

Swedish industrial electric heating elements Kanthal / Kanthal AB: FeCrAl alloys, Nikrothal wire, high temperature Super MoSi2 elements, Globar SiC rods and Tubothal radiant heaters. Engineering selection by furnace nameplate.

Metallic Heating Elements Kanthal (Kanthal AB)

Finished metallic heating elements Kanthal (Kanthal AB) engineered from FeCrAl and NiCr alloys for industrial thermal equipment. Designed to operate at element temperatures from 50 to 1425 °C with stable electrical resistance during continuous heavy-duty furnace operations.

Wire and ribbon coiled heating elements Kanthal A-1, AF and Nikrothal 80 for furnaces
Meander and sinuous formed elements on ceramic supporting tubes for heating chambers
High surface loading capacity and structural stability at temperatures up to 1425 °C
Engineering calculation of coil dimensions and pitch according to plant electrical supply

Precision Resistance Heating Wire and Strip Kanthal (Kanthal AB)

High temperature resistance wire and cold-rolled strip Kanthal (Kanthal AB) manufactured from FeCrAl and NiCr alloys. Substituting NiCr alloys with Kanthal FeCrAl provides up to 33% weight reduction and extends operational life in demanding industrial heating atmospheres.

Precision FeCrAl wire Kanthal APM, APMT and Kanthal D with diameters from 0.1 to 12 mm
Resistance heating strip Kanthal A-1 for heavy-duty industrial heating assemblies
Protective aluminum oxide surface scale formation preventing oxidation in air
Standard spools and coils with verified electrical resistivity across every batch

Kanthal Super MoSi2 Heating Elements (Kanthal AB)

Ultra high temperature electric heating elements Kanthal Super (Kanthal AB) manufactured from molybdenum disilicide MoSi2. Built for industrial furnaces operating at chamber temperatures up to 1850 °C in oxidizing, inert, and controlled process gas environments.

Element grades Super 1700, Super 1800 and Super 1900 for ultra high thermal cycles
Two-shank U-shaped, four-shank W-shaped and bend configurations per plant drawings
Self-regenerating protective quartz glass silica film forming at high temperatures
Flexible aluminum strap connections and ceramic element holders for quick mounting

Globar SiC Silicon Carbide Heating Elements Kanthal (Kanthal AB)

Non-metallic electric heating elements Globar (Kanthal AB) manufactured from high-density recrystallized silicon carbide SiC. Engineered for uniform temperature distribution in industrial furnaces up to 1625 °C without requiring protective atmosphere shielding.

Cylindrical rods Globar SG, single-end connection SGR and spiral SR geometry types
Multi-leg Globar SD assemblies with balanced resistance across internal cold ends
High power density output with compact physical footprints inside furnace chambers
Flame-sprayed aluminum terminal ends ensuring dependable electrical conductivity

Tubothal Heavy-Duty Cartridge Elements Kanthal (Kanthal AB)

Heavy-duty radiant heating elements Tubothal (Kanthal AB) engineered for installation inside metallic and ceramic radiant tubes. Designed as direct electrical replacements for gas burners when modernizing industrial thermal systems toward clean electric heating.

Tubothal radiant assemblies with outer diameters from 68 to 198 mm for plant tubes
High electrical loading capacity delivering up to 40 kW per single radiant assembly
Hot element replacement capability without cooling down or interrupting furnace run
Lower energy consumption footprint and complete elimination of burner emissions

Fibrothal Prefabricated Heating Modules Kanthal (Kanthal AB)

Prefabricated heating modules Fibrothal (Kanthal AB) integrating metallic heating elements with vacuum-formed ceramic fiber insulation. Functioning simultaneously as energy-efficient thermal insulation and radiant heating sources for furnaces up to 1700 °C.

Cylindrical and semi-cylindrical muffle heating modules for industrial tube furnaces
Flat heating panels with embedded or exposed coils for furnace walls and roof linings
Low thermal mass insulation enabling rapid heating and controlled cooling intervals
Substantial reduction in furnace shell heat losses and overall power requirements

Industrial Air and Process Gas Heaters Kanthal (Kanthal AB)

Compact Kanthal Flow Heaters and air heating cassettes Kanthal (Kanthal AB). Engineered to deliver heated air and industrial process gases at temperatures up to 1100 °C with precise output temperature regulation for convection drying, curing, and heat treatment plants.

Electric Flow Heaters with high capacity ratings suited for pressurized process gas
Open-coil air heating cassettes for industrial convection ovens up to 800 °C
Low aerodynamic pressure drop across internal heating matrix with rapid heat transfer
Integrated monitoring thermocouples protecting resistance coils from over-temperature

Furnace Tubes and Protection Accessories Kanthal (Kanthal AB)

Extruded heat resistant tubes Kanthal APMT (Kanthal AB) for furnace applications and thermocouple protection sheaths. Exceptional resistance to carburization, sulfur attack, and thermal shock extends the service life of instrumentation and heaters in aggressive hot zones.

Seamless FeCrAl alloy tubes Kanthal APM and APMT for radiant heating up to 1250 °C
Ceramic insulators, hooks, rollers, and spacers manufactured from high purity alumina
Heavy-duty protective thermowells for metallurgical melting and sintering furnaces
Terminal lead assemblies, busbars, and high current connection clamps for terminals

Surface Load Density and Coil Pitch Engineering for Kanthal A-1 and Nikrothal

When sizing metallic heating elements from FeCrAl alloy Kanthal A-1 or NiCr alloy Nikrothal 80, determining the permissible surface load density in watts per square centimeter is critical.

For batch furnaces operating in normal air atmosphere, the recommended surface loading ranges from 1.5 to 3.5 W/cm2, preventing localized thermal overheating and coil sagging above 1100 °C.

The pitch between adjacent turns must equal two to four times the wire diameter: excessively tight winding causes mutual radiation shielding and accelerates oxide layer degradation, whereas over-stretched coils reduce effective power within the Kanthal (Kanthal AB) furnace chamber.

Mechanical Mounting and Initial Commissioning of Kanthal Super MoSi2 Elements

High temperature heating elements Kanthal Super manufactured from molybdenum disilicide MoSi2 require strict mechanical compliance during furnace lining installation.

Because MoSi2 displays high structural brittleness at room temperature, mechanical bending stresses on terminal shanks must be prevented. Power busbar connections should be made using multi-layer flexible aluminum straps that absorb vibration.

During initial heat-up of the Kanthal (Kanthal AB) furnace, temperature ramping up to 1200 °C is performed at rates below 150 °C per hour in air, developing an uninterrupted self-healing quartz glass silica film over the element surface.

Wiring Topologies and Electrical Resistance Balancing for Globar SiC Rods

Throughout continuous thermal operations, silicon carbide heating elements Globar SiC undergo natural electro-thermal aging characterized by progressive resistance increases.

To maintain temperature uniformity across furnace zones, Globar SD and SG heating rods are arranged in balanced groups across three-phase star or delta circuits. Resistance variance between parallel connected elements within a single group must stay within 5%.

Powering the Kanthal (Kanthal AB) furnace through phase-angle thyristor power controllers and multi-tap stepped voltage transformers ensures reliable long-term output balancing.

Retrofitting Radiant Alloy Tubes with Tubothal Heavy-Duty Elements

Converting fuel-fired furnaces to clean electric heating is effectively accomplished using Tubothal cartridge heating elements. The element inserts directly into existing radiant tubes without structural alterations to the furnace shell, delivering thermal output ratings up to 40 kW per assembly.

Manufactured from Kanthal APM alloy, it generates intense radiant heat transfer along the tube length up to 1250 °C.

Unlike combustion burners, electric heating assemblies Kanthal (Kanthal AB) ensure uniform charge soaking without thermal shock, eliminating exhaust emissions and reducing metallurgical rejects.

Operating Fibrothal Ceramic Fiber Heating Modules in Industrial Furnaces

Prefabricated heating modules Fibrothal combine vacuum-formed ceramic fiber insulation with precision Kanthal resistance coils.

Due to the low thermal mass of alumina fibers, furnace heat-up proceeds three to four times faster than dense refractory brick linings, reducing electrical power usage per heat treatment cycle by 25-30%.

When mounting Fibrothal modules in industrial Kanthal (Kanthal AB) thermal units, mechanical contact between fiber and aggressive molten fluxes must be prevented. Panels are secured using heat-resistant alloy anchors with clearance for thermal expansion of furnace outer shells.

Atmosphere Management and Oxide Layer Maintenance for Kanthal Alloys

Service longevity of FeCrAl heating alloys Kanthal A-1 and Kanthal APM relies on maintaining a dense, adherent Al2O3 scale. In oxygen-deficient atmospheres or environments containing hydrocarbon gases and carbon monoxide, risk of decarburization and carburization increases.

To restore this protective oxide barrier, Kanthal (Kanthal AB) heating elements are periodically pre-oxidized in clean air at 1050 to 1150 °C for four to six hours without charge materials.

This scheduled oxidation treatment heals microcracks in the alumina film, preventing carbon penetration into the wire core.

Kanthal / Kanthal AB and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Kanthal / Kanthal AB and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.