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| 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.
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430 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) |
Aluminum oxide
radiant
conduction |
3.5
11.5 |
23
75 |
550°C (1022°F)
550°C (1022°F) |
Aluminum nitride
conduction |
23 |
150 |
300°C (572°F) |
Quartz
radiant
immersion
conduction |
3.0
15.4
5.0 |
20
100
30 |
400°C (752°F)
150°C (302°F)
400°C (752°F) |
| Applications |
- Ultra pure aggressive chemicals
- Large panel processing
- Analytical equipment
- Foodservice equipment
- Packaging sealing equipment
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- Life science sterilizers and GC/mass spectroscopy
- Semiconductor wafer processing equipment
- Plastics hot runner nozzles and manifolds
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Thermal Uniformity and Fast Response
Series 400 Stainless Steel
Thick film on stainless steel provides low profile heating with the ability to be laser cut or machined to fit any CAD-generated, two dimensional shape. |
Stability and Fast Response
Ceramic
Ceramic substrates provide low thermal expansion, high temperature tolerance, low dielectric constant, rigidity and dimensional stability for thick film applications. |
In-Line Quartz
In-line Quartz
In-line quartz heaters are ideal for use in continuous and intermittent flow aggressive chemical applications. This unique quartz resistive heater module design eliminates process contamination risk in the event of heater failure. |
Corrosion Resistance with a See-Through Option
Flat Quartz
Thick film on quartz substrates provide a low-profile heater that can be cut to fit applications requiring corrosion resistance, high thermal density and visibility.
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