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6X unused firerod watlow cartridge heaters
6x UNUSED Firerod Watlow Cartridge Heaters
This is a lot of SIX Unused Watlow Cartridge Heaters. Each is a Firerod 9948 N2N-4320 and is 240V, 950 watts. They are approx. 3/4" diameter and 2 7/8" long.
The Watlow FIREROD heater revolutionized the heating element when it was introduced. With premium materials and tight manufacturing controls, the Watlow FIREROD heater continues to provide superior heat transfer, uniform temperatures, and resistance to oxidation and corrosion even at high temperatures.
The key to the success of the Watlow FIREROD is the unique swaging process used in its manufacture. While many cartridge heater manufacturers now swage their products, Watlow has developed its own unique swaging process. Swaging is a mechanical procedure that compacts the MgO (magnesium oxide) insulation, which increases its thermal conductivity and enhances its dielectric strength. Swaging has the added benefits of: permitting the resistance wire to operate at lower temperatures, a critical factor in longer heater life; enabling users to achieve process temperatures faster; providing more uniform heating to the application; reducing energy costs through better heating efficiency; and, making the heater more durable and more resistant to shock and vibration.
Watlow FIREROD cartridge heaters are built using only the finest materials and construction methods, and are backed with extensive quality assurance programs. Years of testing have proven certain construction materials and manufacturing methods to yield the best performance for Watlow FIREROD cartridge heaters.
Standard Materials Used in Watlow FIREROD Cartridge Heaters
Watlow's standard Incoloy 800 provides high temperature resistance to oxidation and corrosion, proving far superior to 304 stainless steel alloys used by other manufacturers.
Watlow uses only high purity MgO, compacted to a carefully predetermined and closely monitored density. This assures high dielectric strength and efficient, fast heat transfer.
Watlow's nickel-chromium wire of computer calculated gauge, length and spacing is wound on a supporting core and precisely centered for uniform temperatures.
Watlow uses only the finest high temperature wire available. This ensures wire flexibility and fray resistance, two factors that will reduce lead wire failure and makes installation easier.
High-grade nickel pins assure resistance to corrosion at high temperatures and minimize the chances of embrittlement.
Due to Watlows tight manufacturing controls, Watlow FIREROD cartridge heaters can provide the smallest "no heat" section - on both ends of the heater - of any cartridge heater manufacturer. Watlow FIREROD cartridge heaters are available in 1/8-inch to 1-inch diameters (as well as comparable metric sizes) and various lengths to cover different applications. Watlow is one of the only companies to offer such a variety of specifications.
Applications for the Watlow FIREROD Cartridge Heater
