Firerod Cartridge Heaters

Firerod Cartridge Heaters are the Premier Choice in Swaged Cartridge Heating

Firerod Cartridge Heaters
Watlow's 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.

Performance Capabilities

  • Part temperatures up to 1400°F (760°C) on alloy 800 sheath
  • Watt densities up to 400 W/in2 (62 W/cm2)
  • Maximum voltage up to 480VAC

Features and Benefits

  • Nickel-chromium resistance wire ensures even and efficient distribution of heat to the sheath
  • Conductor pins provide a metallurgical bond to the resistance wire Ensure a trouble-free electrical connection
  • 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 heat, many chemicals and atmospheres
  • Minimal spacing between the element wire and sheath results in lower internal temperature and accommodates a design with fewer or smaller heaters operating at higher watt densities
  • International Organization for Standardization (ISO) 9001 certified provides confidence that quality and reliability expectations are met
  • UL® and CSA approved flexible stranded wires with ead insulation rated to temperatures up to 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

Typical Applications

  • Semiconductor chamber heating
  • Semiconductor wire and die bonding
  • Freeze protection and deicing of equipment in cold climates or applications
  • Humidity control
  • Patient comfort heating used in medical devices
  • Mold die and platen heating
  • Seal bars used in packaging equipment
  • Test sample heating in gas chromatography equipment

LA Stock Lead Adapter Method

Watlow’s patented LA--or Lead Adapter--Modification Method allows stock Firerods to be modified from stock with 13 different lead configurations. LA configurations are permanently attached to the heater. Most of these configurations can be ordered with no-heat extensions or optional mounting methods like flanges, threaded fittings, and locating rings. On LA stock, units are shipped either same or next day.
  • Swaged-in flexible leads
  • Right angle leads
  • Straight stainless steel braid
  • Right angle stainless steel braid
  • Right angle stainless steel braid with teflon leads & seal
  • Straight stainless steel hose
  • Right angle stainless steel hose
  • Straight stainless steel hose with teflon leads & seal
  • Right angle stainless steel hose with teflon leads & seal
  • Teflon leads & seal
  • Silicone rubber seal & leads
  • SJO cord
  • MI Leads

Download the Metric Firerod Cartridge Heater Datasheet

Hands-On Assistance from Technical Specialists

Shop Now

Need help?

Fill out our cartridge heating application form and we will have one of our process heating experts contact you, or call
(855) 737-4718 to speak to one of our experts immediately.
Process Heat
A lesson for me is that I need to involve you earlier in the program.

You were tireless in your support and it will not be forgotten!

Valin Was There For Us
When we needed technical assistance and applications support, Valin was there for us. Their knowledgeable engineers saved us an invaluable amount of time, helping us get up and running quickly. We are very happy with their services.