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General Info

ceramic band heaters

Ceramic Band Heaters by Thermal Corporation provide long life and use less wattage (because of insulation) in plastics extrusion and injection molding applications. These band heaters are constructed with a stainless steel shroud enclosing high quality ceramic knuckles through which run coiled high temperature nickel-chromium element wire. Configuration choices allow selection of one or two piece heaters, type of closure, and type of leads/post terminals. Diameters of 2-1/4″ or greater and widths of 1″ to 15″ are available. Leads normally exit 180° from gap. Lead length tolerances are as follows: ± 1″ (up to 72″) and ± 2% (over 72″). Options include terminal boxes, holes, Heat Saver (extra) insulation (see details below), 3-phase power, dual voltages, partial coverages, European connectors, perforated sheaths without insulation for air cooled applications, and others (see list below). To order, specify quantity, configuration, inside diameter, width (increments of 1/2″), wattage, voltage, lead length if applicable and any options.

Ready to Order? Click here to request a quote by selecting Ceramic Band Heater from the Select a Product drop-down. Prices from $167.42.



  • Lower Operating Cost – Because of superior insulation, less heat escapes to the air and less wattage is required to maintain barrel temperature. Also the heater is safer because the external surface is much cooler.
  • Operator Comfort – With the majority of the heat going directly to your process, the ceramic knuckle band heater gives off significantly less heat to ambient air than a mica band heater.
  • Longer Heater Life – because all materials used are rated to operate at very high temperatures.
  • Higher Operating Temperatures
  • Flexible – easy to install and remove
  • Dual Heat Transfer – Heat is transferred through both radiation and conduction so a near perfect fit is not required as with other heaters, such as mica heaters.



Click here to view the ceramic band heater options’ diagrams and descriptions.

  • Holes/Notches
  • Ground Wire
  • Ground Post
  • Non-Standard Location of Leads
  • Thermocouple Adapter
  • Spring Clamps/Screws
  • Strain Relief Spring
  • Copper Elbow with Hose
  • Copper Elbow with Braid
  • Terminal Box
  • 3-phase Power
  • Dual Voltage
  • European Connector



Thermal Corporation ceramic band heater insulation diagram

Standard Insulation has one layer of ceramic paper insulation. This is the default option on ceramic band heaters. Heat Saver Insulation adds a thicker layer of insulation as well as a stainless steel sheath. The stainless steel sheath is used to reflect heat back into the process. Vented removes the paper insulation and instead adds holes in the outer sheath to allow air to freely flow around the heater.

Check out this video blog on the differences between ceramic band heater insulations!



What are Vented Knuckle Band Heaters?

What Is Watt Density and How Is It Related to Heater Life?

Tips for Extending the Life of Band Heaters

What Is the Difference Between Mica Band Heaters and Ceramic Band Heaters?

The Importance of Avoiding Contamination (video blog)

The Differences Between Ceramic Band Heater Insulations (video blog)

Written by Jennifer Taylor & Shelby Reece
Date Published: 05.21.2014
Last Updated: 03.11.2020


General Info

strip heater

Strip heaters by Thermal Corporation are constructed with the highest quality material available. A resistance element is wound around a sheet of mica, insulated on both sides with mica, and then a sheet of coated steel is folded around the composite layers of mica. Mica strip heaters are used in a wide variety of industrial applications. The most frequent use is to heat metal parts (such as dies and platens) by clamping one of the flat surfaces on the metal part. They are sometimes used as heaters for hoppers and other containers to heat the liquid or solid containers. Lead length tolerances are as follows: ± 1″ (up to 72″) and ± 2% (over 72″). View the standard configurations list and available options by clicking on the links above.


Contact Customer Service by phone at (800) 633-2962, by email at, or chat with us using our chat feature located at the bottom right of the page!

Ready to Order? Click here to request a quote by selecting Strip Heater from the Select a Product drop-down!

diagram of a Thermal Corporation strip heater with measurements



5 Ways to Extend the Life of Strip Heaters (video blog)

How To Extend the Life of Strip Heaters

Case Study #202: Using a Strip Heater in a Foil Stamping Process

Written by Jennifer Taylor & Shelby Reece
Date Published: 01.17.2014
Last Updated: 03.11.2020

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