Call Us Today at 513-201-7255
America's Leader in Process Heaters for the Plastics, Food, and Chemical Industries
CARTRIDGE HEATERS
.jpg)
Cartridge heaters by American Process Heat are high temperature swaged units manufactured with magnesium oxide insulation. Every cartridge heater by American Process Heat is a premium quality unit with an incoloy sheath which offers a higher temperature rating and higher resistance to chemical corrosion.
​
American Process Heat cartridge heaters offer a high watt density, swaged construction including solid nickel electrical conductors exiting through a lava end plug. Flexible, stranded, is fused to the end of the solid conductors and durable fiberglass is used as insulation. If you require your leads to be flexible as soon as they exit the unit, specify swaged leads when ordering. Maximum internal temperature of our incoloy sheathed cartridge heater is 1700ºF. Close uniform spacing (less than 1/16″) between resistance wire and the sheath of the cartridge heater results in more efficient heat transfer, cooler elements, and longer lifetime. Swaging the heater after assembly compacts the insulation material, which increases the heat conduction away from the element, and holds the wire in exact position. Have Questions? Call us at (513) 201-7255 or email us at sales@americanprocessheat.com​​
+/- 2% over 72"
Standard Diameters available for fast shipment are:
Inches - Millimeters
1/4″ (.246" ± .002") - 6.5mm (.252" ± .002")
3/8″ (.371″ ± .002″) - 10mm (.389" ± .002")
.487" (.487" ± .002") - 12mm (.468" ± .002")
1/2″ (.496″ ± .002″) - 12.5mm (.488" ± .002")
5/8″ ( .621″ ± .002″) - 14.7mm (.574" ± .002")
11/16″ (.683″ ± .002″) - 15mm (.586" ± .002")
.724" (.724" ± .002") - 16mm (.625" ± .002")
3/4″ (.746″ ± .002″) - 16.5mm (.645" ± .002")
7/8″ (.871″ ± .002″) - 18mm (.705" ± .002")
1″ (.996″ ± .002″) - 18.5mm (.724" ± .002")
20mm (.783" ± .002")
25mm (.980" ± .002")
​
Tolerances and Recommended Voltages
Length Tolerances
+/- 2% with +/- .09375" minimum tolerance.
Special Length Tolerances
+/- 1.2% with +/- .09375" minimum tolerance
Maximum Lengths
1/4" diameter: 36"
3/8" diameter: 60"
All others: 72"
Camber Tolerances
Up to 12" long: 0 .010"
Over 12": .020" per foot of length
In longer lengths, the camber should not affect usage as the cartridge heater will flex enough to accommodate installation in most machined holes.
Resistance Tolerances
In designing both cartridge and band heaters, we calculate the required element resistance at 600 degrees Fahrenheit. This resistance is 6% higher than a room temperature of 72 degrees (F). The tolerance allowed on the total heater resistance is +10 / -5%.
Special Resistance Tolerance is +/- 5%.
Maximum Voltage Recommendations
Diameters less than .5": 240V
.5" Diameter and greater: 480V
Lead Length Tolerances
+/- 1" up to 72"