• 1/8-INCH FIREROD® CARTRIDGE HEATERS

    The Watlow FIREROD not only set the industry standard for cartridge heaters, it continues to make improvements in construction and design. Among these innovations is the 1/8-inch FIREROD. This miniature cartridge heater with swaged construction features high watt density, is capable of high operating temperature and provides long life in applications where it is essential to have a very small size. Like all of Watlow’s other FIRERODs, the 1/8-inch contains a resistance wire closer to the sheath and compacted MgO insulation, which maximizes heat transfer.

    • Miniature size
    • Low mass
    • Swaged construction
    • Numerous lead options available
    • Outlasts competitors in life testing

    MINIATURE SIZE
    Delivers high performance in a small package and supports a wide variety of application requirements

    LOW MASS
    Offers better heat transfer, quicker response time and increased heater life due to lower internal temperature

    SWAGED CONSTRUCTION
    Higher watt density and temperature capabilities, maximum heat transfer and increased safety due to low leakage

    OPTIONAL INTERNAL THERMOCOUPLE
    Reduces system footprint and measures temperature at point of application

    MANUFACTURED TO THE HIGHEST QUALITY STANDARDS
    Backed by 50 years of industry expertise and outlasts competitors in life testing

    NUMEROUS LEAD OPTIONS AVAILABLE
    Maximum flexibility and performance

  • FIREROD® CARTRIDGE HEATERS

    FIREROD CARTRIDGE HEATERS ARE THE PREMIER CHOICE IN SWAGED CARTRIDGE HEATING

    The FIREROD cartridge heater revolutionized the heating element industry in 1954 when it was patented as the first swaged cartridge heater. The mechanical procedure of swaging reduces the diameter of the heater by compacting the unit; this directly improves the heat transfer and efficiency of the heater.

    FIREROD cartridge heaters are built using only the finest materials and construction methods and are backed with extensive quality assurance programs. With premium materials and tight manufacturing controls, the FIREROD heater provides superior heat transfer, uniform temperatures, resistance to oxidation and corrosion and a long life even at high temperatures.

    FIREROD offers many delivery programs to meet your needs.

    • Nickel chromium resistance wire ensures even, efficient distribution of heat to sheath
    • Magnesium oxide insulation of specific grain and purity results in high dielectric strength and faster heat-up
    • Alloy 800 sheath resists oxidation and corrosion from many chemicals, heat and atmospheres
    • Minimal spacing between element wire and sheath results in lower internal temperatures and accommodates design with fewer or smaller heaters
    • UL® and CSA approved flexible stranded wires with lead insulation rated to temperatures of 480°F (250°C)

    PATENTED LEAD ADAPTER (LA) METHOD
    Allows same day shipment on more than 150,000 configurations of stock FIREROD heaters and lead combinations

    INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) 9001 CERTIFIED
    Provides confidence that quality and reliability expectations are met

    CONDUCTOR PINS
    Provides a metallurgical bond to the resistance wire and ensures trouble-free electrical connection


    Material
    Maximum Operating Temperatures
    Maximum Watt Densities
    W/in2
    W/cm2
    Alloy 800 1400 760 400 62
    Stainless Steel 1000 538 400 62
  • HIGH-TEMPERATURE FIREROD® CARTRIDGE HEATERS

    SWAGED CARTRIDGE HEATER IDEAL FOR HIGH-TEMPERATURE APPLICATIONS

    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 principles 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

    • High-temperature seal results in longer heater life
    • Alloy 800 sheath transfers heat more efficiently
    • High emissivity sheath provides better heat transfer and longer heater life

    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

  • METRIC FIREROD METRIC CARTRIDGE HEATERS

    CARTRIDGE HEATER BUILT TO MEET THE SPECIFICATIONS OF THE GLOBAL MARKET

    The Watlow FIREROD not only sets the industry standard for cartridge heaters, but continues to make improvements in construction and design. Among those improvements is the FIREROD metric cartridge heater, a variation of the FIREROD cartridge heater built to meet the exact specifications of the global market.

    Like its counterpart, the metric FIREROD consistently outperforms other cartridge heaters with its design solutions such as its exclusive resistance wire winding and swaging process. These processes bring the resistance wire closer to the sheath and compacts the MgO insulation to maximize heat transfer. The end result is longer service life and better efficiency.

    • Nickel chromium resistance wire ensures even, efficient distribution of heat to sheath
    • Magnesium oxide insulation of specific grain and purity results in high dielectric strength and faster heat-up
    • Alloy 800 sheath resists oxidation and corrosion from many chemicals, heat and atmospheres
    • Minimal spacing between element wire and sheath results in lower internal temperatures and accommodates design with fewer or smaller heaters
    • UL® and CSA approved flexible stranded wires with lead insulation rated to temperatures of 250°C (480°F)

    NICKEL-CHROMIUM RESISTANCE WIRE
    Assures even and efficient distribution of heat to the sheath because the wire is precisely wound and centered in the heater

    CONDUCTOR PINS
    Ensures a trouble-free electrical connection because of the metallurgical bond between the conductor pins and resistance wire

    MAGNESIUM OXIDE INSULATION OF SPECIFIC GRAIN AND PURITY
    Results in high dielectric strength and contributes to faster heat-up

    ALLOY 800 SHEATH
    Resists oxidation and corrosion from many chemicals, heat or atmospheres

    UL® AND CSA APPROVED FLEXIBLE STRANDED WIRES
    Insulates the wires to temperatures of 250°C (480°F)

    MINIMAL SPACING BETWEEN THE ELEMENT WIRE AND SHEATH
    Results in lower internal temperatures and accommodates design with fewer or smaller heaters

  • MULTICELL™ INSERTION HEATERS

    EFFICIENT HEAT DISSIPATION AND LONG LIFE TO MEET YOUR HIGHEST DEMANDS

    The advanced design of the MULTICELL heater from Watlow offers three major advantages over other insertion heaters: extreme process temperature capability, independent zone control for precise temperature uniformity and loose fit design for easy insertion and removal.

    • Multiple, independently controllable zones for process temperature uniformity
    • Radiant design of heater permits easy removal and replacement with minimal downtime
    • Oxidized sheath improves heater performance as oxidation increases
    • Quick disconnect plug and jack enables quick replacement of individual elements while maintaining operating temperature
    • Special bending capabilities solves unusual machinery needs

    INDIVIDUALLY METAL-SHEATHED COILS SWAGED INTO A LARGER, HIGH-TEMPERATURE ALLOY OUTER SHEATH
    Provides maximum protection against element burnout through the outer sheath

    FLEXIBLE LEADS UP TO 842°F (450°C)
    Protects termination from high-temperature environment

    MULTIPLE, INDEPENDENTLY CONTROLLABLE ZONES
    Allows process temperature uniformity not possible with any other single-sheathed heater

    RADIANT DESIGN OF HEATER
    Permits easy removal and replacement with minimal down time since it will not bind or seize in the hole

    QUICK DISCONNECT PLUG AND JACK
    Permits fast replacement of individual elements while the press stays at operating temperature

    SPECIAL BENDING CAPABILITIES
    Solves unusual machinery needs and keeps leads away from heated zones

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