round ceramic heaters

With closed or open grooves in ceramics


Round ceramic heaters are used for indirect heating of liquids or direct heating of air. For these applications, the ceramic element is usually mounted in a tube.
Elektrotermija produces a wide range of heaters with round ceramic bodies. Resistance coils are placed in longitudinal holes or grooves. Groves can be open or closed. Ceramic shorter than 300mm with closed grooves can be filled with MgO powder. Heat is transferred by radiation and natural convection.


  • Steam generators
  • Bakery and bread ovens
  • Duplicators, reactors
  • Dryers
  • Indirect heating of liquids
  • Industrial furnaces

Technical data

Type of heating

Indirect - liquid
Direct - air


Cordierite C520


Heater diameter: Ø13, Ø14, Ø17.5, Ø20, Ø22, Ø25, Ø26, Ø27, Ø30mm

Heater length: Max. 1500mm


Assembled into protective tube
Free standing in the air


M3, M4, M5, Nickel wires, Nickel wires with ceramic beads


Acc. to customer specification
Connection at one or two ends
Open or closed grooves on ceramic
With or without connection head


Voltage: Max. 480V
Surface load: for air 1 W/cm², for oil 2 W/cm², for water 4 W/cm²


  • Dimensions, power and voltage upon request
  • Economical, cost efficient
  • Fast warm up
  • Easy assembly and disassembly

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