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Heater Selection Matrix
Heating: Solids
Application Description
Sheath Materials
Typical Maximum Watt Densities
W/in2 (W/cm2)
Maximum Operating Temperatures
°F (°C)
Catalog Page
Band
Clamped to cylindrical surfaces, i.e. extrusion barrels and industrial nozzles.
Aluminized Steel
mica insulation Stainless Steel with
mica insulation Stainless Steel with
mineral insulation Zinc Steel with
mica insulation
H20-55® (3-8.5) H20-55® (3-8.5) «30-200® (4.6-31) H20-55® (3-8.5)
900 (480) 1000 (540) 1400 (760)
900 (480)
23 23 13 23
Cable
Can be formed to heat flat or curved surfaces, or wound around the object being heated. Typical applications include platen heating and plastic injection molding nozzles.
Inconel® or Stainless Steel
30 (4.6)
1200 (650)
57
Cartridge
Inserted into a close fit hole, i.e. platens, dies and molds.
Incoloy®
Hup to 600® (93) Bupto 600© (93)
1600 (870) 1000 (540)
75 75
Cast-in
Integrating a tubular or cable heating element into a casting to form a heated part. Commonly used to reduce the total number of equipment parts.
Aluminum
60 (9.3)
700 (370)
135
Form the heaters into an oversized chamber to surround the object being heated. Using radiant and convection heat transfer, ceramic fiber heaters are used as ovens and industrial furnaces.
Molded Ceramic Fiber
30 (4.6)
2200 (1205)
141
Flexible
Bonded or otherwise fastened to the part. Commonly used to heat irregular surfaces and shapes, or applica­tions requiring distributed wattage or limited space.
Kapton® Mica
Neoprene Silicone Rubber
20 (3.1)
50 (7.8)
2 (0.3)
10 (1.6)
390 (200) 1100 (595) 250 (120)
500 (260)
189 193 191 169
Multicell
Radiant
Loosely inserted into a platen hole for radiant heating. Can also be used in any static or dynamic non-contact application as a radiant heat source. Commonly used for extreme high temperature applications, i.e. glass bend­ing and tempering or super plastic forming and diffusion bonding of titanium and other exotic aerospace alloys.
Inconel® Inc oloy® Stainless Steel
■■160® (9.3)
40 (6.2) 30 (4.6)
45 (7)
30 (4.6)
2250 (1230)
1500 (815)
2000 (1095) 1600 (870)
1300 (700)
195
224
Used in any static or dynamic, non-contact application where conduction or convection heating isn't practical. Commonly used in laminating processes, thermoforming and paint drying. Note: quartz tubes supply quick heat up and cool down.
Incoloy® Tubular Molded Ceramic
Fiber Quartz Tube Stainless Steel
Emitter Strip
Strip
Bolted or clamped to surface of, i.e. dies, molds, ovens. Often used for freeze and moisture protection.
Aluminized Steel with
refractory insulation Stainless Steel with
mica insulation Stainless Steel with
mineral insulation Zinc-coated Steel
with mica insulation
^K0© (7.7) ^H35© (5.4) ^Bl00® (15.5) ^|25® (3.8)
1200 (650) 1000 (540) 1400 (760) 900 (480)
241 233 229 233
Tubular
Clamped to the object to be heated, usually exterior surfaces of tanks or other process vessels or fitted into milled grooves in a platen.
Flat: Incoloy®
Stainless Steel Round: Incoloy®
Stainless Steel
40 (6.2) 40 (6.2) 40 (6.2) 40 (6.2)
1400 (760) 1200 (650) 1600 (870) 1200 (650)
299 299 273 273
©Figures shown are typical watt density ranges. Band size and thermal characteristics of the material heated will determine recommended watt density. ©Applications and heater constructions differ. Consult the application section in this catalog for more detailed application information.
©These are typical maximum watt densities. Heater clamping, environmental conditions and material being heated will determine recommended watt densities.
Kapton® is a registered trademark of E. I. du Pont de Nemours & Company Incoloy® and Inconel® are registered trademarks of the Special Metals Corporation.
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