– Strip Heaters
Series L, LE, LW to 750°F
Series H, HE, HW to 1300°F
– Tubular Heaters
Series 5CU to 350°F
Series 5FE to 750°F
Series 5CR to 1350°F
– Cartridge Heaters
Sheathed: Series K
Sheathless: Series S
– Ceramic Ring Heaters
Series RU to 1800°F
– Industrial Hot Plates
Series HP to 600°F
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TRENT, Inc.
201 Leverington Ave.
Philadelphia, PA 19127
Toll Free: 800-544-TRENT
Phone: 215-482-5000
Fax: 215-482-9389
©2005 Trent, Inc.
Designed for standard and special process machines, platens, glue and compound vessels, heating of valves, pipe lines, plastic forming dies, cigarette and shoe machinery.
TRENT Cartridge Heaters are general utility heating units that enable the concentration of heat where required.TRENT Cartridge Heaters are manufactured with brass or steel sheath with end opposite terminals spun in to make a moisture-resistant heater. Silver soldered moisture proof ends are also available. A heavy duty nickel chromium coil provides the heat and is inserted into a pre-formed ceramic insulator with coils running parallel to the length of the heater. Terminals are securely anchored in the top of the heater and can be supplied in various styles to meet specific applications See illustration below.
TRENT Sheathed Cartridge Heaters have a brass or carbon steel sheath, but are also available in stainless steel. Wattages other than those listed in the specifications tables below are also available. Check with factory for special applications.
When the heaters are mounted in moving machinery, the pigtail leads must be securely fastened to prevent breaking at the point they enter the heated cartridge. TRENT Cartridge Heaters are designed to be used either in direct contact with the object or material to be heated, or inserted snuggly into a metal block to conduct the heat from heater and to prevent overheating. All TRENT Cartridge Heaters are .003” undersize in diameter, except those with a stainless steel sheath which can be up to .015” undersize. When drilling the hole for a cartridge heater in a block, the customer should drill a pilot hole completely through the block and then drill or ream the hole to the exact size of heater listed.
TRENT Sheathless Cartridge Heaters are used in many applications. This heater has the advantage of faster heat conduction, as no metallic sheath is present to act as a heat shield. The lack of a sheath also eliminates sheath deterioration and permits operating temperatures beyond the limits of sheathed heaters. Their simple design consists of a heavy duty nickel chromium coil, inserted into a pre-formed ceramic insulating core, with coils running parallel to the length of the heater and sealed with cement at the top and bottom. Leads are restricted to pigtail type (Fig. A above). Since these heaters are ceramic extrusions, the sizes are nominal and diameters may vary slightly. These heaters should not be used in the presence of liquids as the cores are porous. To install, drill a hole as close to the heater diameter size as possible, and pack any void with zircon heat transfer material.
