Open Coil Heating Solutions

Open coil heating elements are based on traditional wire heating technology and come in a variety of shapes. For all wire heating elements, a special metal wire serves as heat source. The heating conductor heats up due to its electrical resistance when being supplied with current. When designing a resistance wire heater, the heating conductor’s alloy and shape are most important next to the power output. Therefore, a selection of round and flat wires of various alloys and cross-sections is available. The selected heating conductor usually becomes a winding part on insulation material, such as ceramic or Micanite, or a spiral for tubular heating elements and heating cartridges. Open or etched heating elements are also possible.

Open Coil Heaters can be used for a wide variety of applications, e.g. White goods such as washing machines, tumble dryers, dishwashers, toasters, hair dryers and hand dryers; Air conditioning units, air curtains in doorways, pre-heaters for heat pumps; 3D printers and ink dryers; Manufacturing applications such as heat treatments of materials, plastic processing, and more.

FEATURES

• DBK has developed a unique heating technology and has many years of experience in its use

• Using ribbon wire wound onto mica formers – with narrow dimension facing the air flow

• Minimal shadowing of heating element

• Open element – very low resistance for air flow

• High surface area to cross sectional area ratio results in low surface density

• High power capability with Watt densities as low as 2 W/sqcm

• No glow – significantly reduced radiated losses – reduced fire hazard

Downloads

Datasheet Open Coil