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Thick Film Heaters
Thick Film Heaters Watlow layers thick film resistor and dielectric materials on quartz, stainless steel and ceramic substrates to produce high performance industrial heaters. The thick film heaters provide very fast temperature response and uniformity on a low-profile heater. Thick film heaters are ideal for applications where space is limited, where conventional heaters can't be used, when heat output needs vary across the surface, or in ultra-clean or aggressive chemical applications.

Substrate Typical Maximum
Watt Densities
Maximum Operating
Temperatures
W/cm2 W/in2
Series 400 stainless steel
radiant
conduction
immersion
 
5.0
11.5
27
 
35
75
175
 
550°C (1022°F)
550°C (1022°F)
150°C (302°F)
Ceramic (aluminum oxide)
radiant
conduction
 
3.5
11.5
 
23
75
 
550°C (1022°F)
550°C (1022°F)
Quartz 15.4 100 150°C (302°F)
Applications
  • Large panel processing for flat panel display
  • Plastics hot runner nozzles and manifolds
  • Analytical equipment
  • Ultra pure aggressive chemicals
  • Foodservice equipment
  • Packaging sealing equipment
  • Life science sterilizers and GC/mass spectroscopy
  • Semiconductor wafer processing equipment
Features Benefits
  • Low profile package
  • Ideal for applications with limited space
  • Allows for smaller footprint
  • Can be designed to fit around mounting holes, notches, sensors, etc.
  • Sensor option
  • Bonded RTD
  • Low thermal mass
  • Responds quickly
  • Energy efficient
  • Targeted heat profile
  • Provides excellent temperature uniformity
  • Unlimited heater trace design options
  • Non-hygroscopic coating
  • Moisture resistant
  • High watt densities
  • Improves process quality and yields
  • Provides precise, repeatable wattage distribution
  • Places heat directly where required

Product Information

Click on the below links for more product information. PDF documents require Adobe® Reader® version 7 or higher for viewing.

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