WATLOW High-Temperature FIREROD® Cartridge Heaters


Watlow designed and manufactured the first swaged cartridge heater and revolutionized the heating element industry.

With premium materials and tight manufacturing controls, Watlow’s cartridge heaters (insertion heaters) provide superior heat transfer, uniform temperatures, resistance to oxidation and corrosion and long life even at high temperatures. Customers benefit from Watlow’s custom designs, on-time delivery, quality and technical assistance.

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Product Description

Product Description

The Watlow HT FIREROD® cartridge heater is especially designed for high-temperature platen applications up to 1600°F (871°C). The HT FIREROD high temperature cartridge heater utilizes the same industry leading design principals used on all of Watlow’s FIREROD products. Taking the cartridge heater one step further enables the HT FIREROD to withstand application temperatures up to 400°F (204°C) higher than standard cartridge heaters.

There are certain differences in the HT FIREROD design which are important in high temperature applications:

  • HT FIREROD cartridge heaters are specially constructed with an end seal that is virtually airtight to reduce the effects of resistance wire oxidation
  • The high temperature sheath is treated to improve its emissivity for better heat transfer
Specification

Specification

Material Maximum Operating Temperatures Maximum Watt Densities
°F °C W/in2 W/cm2
Platen 1800 982 100 15.5
  • Platen temperatures to 1600°F (871°C)
  • Maximum watt density to 100 W/in² (15.5 W/cm²)
  • Maximum voltage 277VAC to ground
  • Length tolerance: +0, -4 percent standard diameters; +0, -8 percent for special diameter
    • Applications

    Applications

  • Thermo plastic
  • Super plastic forming of titanium aircraft parts
  • Diffusion bonding to laminate and shape titanium
    • Features & Benefits

    Features & Benefits

    Features Benefits
    High-temperature seal
  • Reduces exposure to the atmosphere which minimizes oxidation of the winding wires resulting in longer life of the element Note: First 2 in. (51 mm) must be outside the platen in free air.
    		•
    Alloy 800 sheath
  • Transfers heat more efficiently
    		•
    High emissivity sheath
  • Provides better heat transfer and longer life
    		•
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