Used to heat (mostly) cylindrical surfaces and are available in several construction styles to perform under different operating environments.
Cast-In Band Heaters
Our Cast-In Band Heaters are offered with cooling tubes for a Liquid Cooling option or with fins for Air Cooled applications.
Ceramic Band Heaters
Ceramic Insulated Band Heaters can meet the demand for energy conservation & operation efficiency. They are capable of generating higher temperatures essential to process today’s resins. Electrical energy savings are achieved by using a 1/4″ thick ceramic fiber insulating blanket, reducing power consumption by 25 to 30%. Because of the low thermal conductivity of the ceramic fiber insulation, when the external surface temperature of the heater is ~400°F, the inside surface temperature is ~1200°F.
Special Features: Fully flexible heater that conserves electrical energy
Duraband® (Micaband) Heaters
The Duraband (Micaband) heater design is a reliable mica insulated band heater that can perform at the higher operating temperatures [up to 900°F (480°C)] essential to process high temperature resins, providing long, efficient service necessary for today’s high productivity of plastic extruders, injection and blow molding machines.
Tempco’s Duraband Heaters are also configurable in irregular shapes such as Cone, Hexagon, Ring and Square/Rectangular.
Special Features: Most economical, versatile and commonly used
Maxibands can be designed as Heat and Cool, Heat Only or Cool Only. The channels in the extruded aluminum track are precisely sized to accept a .315 diameter tubular heating element and provide an excellent heat sink for rapid heat transfer and good temperature uniformity.
Special Features: Rugged contamination-proof and excellent heat transfer
Mi-Plus® Band Heaters
The Mi-Plus is the solution for applications that require high watt densities (W/in2) and/or high operating temperatures.
Mi-Plus band heaters are capable of temperatures up to 1400°F (760°C) and watt densities up to 150W/in2 (23.25W/cm2).
The recommended maximum watt density for a specific application will depend on the heater size and its operating temperature.
Special Features: Capable of high temperatures and high watt densities
Tubular Band Heaters
Tubular Band Heaters can perform under the most adverse conditions. Highly recommended for heating applications where premature nozzle band heater burn-out on plastic injection molding machines is a constant problem due to contamination from plastic overflow or other contaminants. They are proven to be very effective for processing Teflon® and high temperature resins.
Special Features: Rugged contamination-proof construction