Cartridge Heating Elements
In the years since it’s introduction, the Duratherm
high watt density, swaged cartridge heater has attained a standard of
second to none.
Our total commitment to engineering excellence is reflected in our
successful efforts to improve heater performance and production efficiency.
The results obtained clearly establish “MAXPAK” as the
most consistent, reliable and economical cartridge heater on the market.
Quality Design and Construction.
- Premium Quality
Element Wire. Nickel-chromium
resistance wire is precision wound on a high purity ceramic core
to optimum computer generated gauge and pitch specifications.
Element wires overlap the internal pins and are swaged into a metallurgical
bond for optimum connection life.�
- Superior Element Positioning. Precision centering of the element
assembly insures optimum heat uniformity around the circumference
of the cartridge. The element
winding is in close proximity to the cartridge sheath providing rapid
and efficient transfer of heat to the application. �
- Densely Compacted Ceramic Insulation. The magnesium oxide ceramic
insulation is compressed to near theoretical density in order to
provide the best combination
of heat transfer and dielectric strength. This dense mass of compacted
ceramic also provides maximum resistance to shock and vibration.�
- High Temperature Alloy Sheath. Available sheath materials include
various stainless steel and incoloy compositions. Additional metal
sheath compositions can
also be supplied as applications dictate.�
- Welded End Seal. A metal end disc of the same alloy as the sheath
is heli-arc welded into the end of the cartridge. This seal weld
offers the total seal
required for liquid heating applications as well as eliminating the possibility
of contaminants entering the disc end of the cartridge.�
- Durable, Heat Resistant Lead Systems. The standard high temperature
leads exit from the cartridge through a protective ceramic end
cap. The lead insulation
is recessed well into the cap to eliminate any possibility of exposing
bare wire when bending the leads sharply at the lead end. Standard
of ten inches of UL approved stranded wire. The lead wire insulation
is UL rated for 492°F/250°C continuous operating temperature. A wide variety of other standard and special purpose lead styles
are also available.