Mica Insulated (Strip) Heaters

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Micanite is a kind of insulation paper which is impregnated with a heat resistant binder and afterwards pressed in several shifts under heat and high pressure to plates. This material is heat resistant up to 350 °C, as special construction (Phlogopit) up to 450 °C, and is used for the wire wound formers as well as for the encapsulating cover plates. Because of the typical "sandwich"-construction of Micanite Flat Heating Elements and their high watt density it is necessary to use a platen to press the element onto the surface to be heated.

Micanite Flat Heating Elements - framed in metal with pressure plate and connection housing [1 / 5]
Micanite Flat Heating Elements - Metall ummantelt [1 / 3]
round micanite flat heating element [1 / 5]

Established on the market for round Flat Heating Elements are some standard dimensions (Ø 58 / Ø 65 / Ø 80 / Ø 100 / Ø 160 / Ø 260 mm). But normally Micanite Flat Heating Elements are constructed on customer's request.

Mica Insulated (Strip) Heaters can be metal sheathed for higher mechanical stability. This makes the heater flexible, so that it is also possible to build a band heater.

Metal-clad Micanite surface heating elements also allow for attaching termination boxes, connection sockets and strain-relief. The metal sheathed heater surface does not mean a restriction for coutouts and holes, neither.

Technical Data Mica Insulated (Strip) Heaters
  Micanite Phlogopit
(No warranty claims can be derived from this table)
Continuous temperature resistance 350 °C 450 °C
Short term temperature resistance 700 °C 900 °C
Recommended max. watt density 4,0 W/cm² 5,0 W/cm²
Power tolerance +5 / -10% +5 / -10%
max. dimension 2000 x 1000 mm 2000 x 1000 mm
min. dimension 30 x 30 mm 30 x 30 mm
min. height 2,0 mm
(metal plated: 4,0 mm)
2,0 mm
(metal plated: 4,0 mm)
Dimension tolerance +/- 1 mm +/- 1 mm
Quantities from 1 piece from 1 piece
min. bend radius - -
max. IP-protection - -
Adhesive foil possible no no
UL possible no no


  • Chapter Flat Heating Elements
    Chapter Flat Heating Elements

    Multifunctional use, uniform heating: Contact heating of flat surfaces. We manufacture flat heating elements in several materials, customised to your application.

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