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Ceramic heating elements

made of hotpressed silicon nitride ceramic

Heating rings

made of high-performance ceramics

Range of products

Products / Ceramic heating elements / Heating rings

Heating rings


Ceramic heating rings made of silicon nitride can be produced with an outer diameter of up to 300 mm. A typical extent of the rings is 5 mm. The good thermal conduction and the low thermal mass of the ceramic material allow extremely fast heating rates, a uniform temperature distribution and high control accuracy. The high strength of hot-pressed silicon nitride guarantees high stress resistance and excellent wear resistance at short processing times. We provide heating rings for operating in the open air at temperatures up to 500 °C. Higher temperatures (if required) could be achieved by developing specific technical solutions.

Customized design

Our in-house designs make any modification in size (inner and outer diameter) or performance simple and convenient. Mounting-bracket holes and openings for temperature regulation can be added to the design. Our heating rings come already flat ground, however they can be ground further up to a flatness of < 10 μm to meet specific requirements. A variety of shapes formed to the contour of the product or tool to be heated are possible as well.

Range of products

This is only a small selection from our product portfolio. For other variants please contact us with our product request form.

Outer diameter Inner diameter Tmax
Ø 28.5 mm Ø 10 mm 500 °C
Ø 50 mm Ø 0 - 22 mm 500 °C


Your advantages:

  • You can generate the heat exactly at the spot where it is needed
  • You can reduce cycle times and increase yield in your process
  • You save process cost and energy
  • You can eliminate preheating or reduce time for heating up Your system to few minutes
  • Your machine can become smaller and lighter thanks to the reduction of mass and volume of the heating components

Areas of application

  • packaging machines e. g. heat sealing
  • medical technology
  • machine-building e. g. bonding of filters, nozzle heating
  • R&D - laboratory equipment, measuring and testing equipment, reactors
  • tool heating
  • plastic processing, plastic manufacturing, injection moulding machines
  • semiconductor systems
  • cutting devices
  • soldering systems