"MAXPAK" Plate Heater Assemblies
precision plate and component heater assemblies are designed for
a wide range of extrusion, molding and packaging applications.
The rugged, high performance assemblies are providing exceptional
performance in the heating of extrusion profile dies, blow molding
manifolds and die heads, wire cross head dies, extruder barrels
and injection molds.
The plate heater assemblies consist of machined plates which
accommodate either “MAXPAK” square swaged cartridge
heater (U.S. and foreign patents pending) or formed cable heaters.
The heater assemblies can be supplied in any desired material
including aluminum, bronze, stainless steel and steel. The plates
and components can be readily plated or coated to provide corrosion
resistance or special non-stick properties for sealing applications. A
slot style square cartridge or cable heater and lead mounting
method insure full protection of the elements and lead system
while simplifying repair of accidental damage.
The new plate and component heater design provides higher reliability
and performance than cast and mica style plate heaters while
offering greater versatility. The assemblies do not require patterns
for temporary sand molds or expensive permanent molds and can
be manufactured in smaller sizes, thinner constructions and more
complex configurations than cast heater or mica plate heater
styles. Performance benefits include higher temperature and wattage
capabilities, improved heat uniformity, reduced thermal mass
and increased heating efficiency. Plate and component heater
assemblies having irregular shapes and requiring multiple holes,
slots and cutout areas are readily manufactured through the use
of formed square cartridges installed in corresponding machined
mounting slots. Special features including distributed wattage,
multiple independent heat zones and internal temperature sensors
are easily added.
Duratherm’s precision plate and component assemblies improve
heating efficiency, allows lead and heater repair, and reduces
turnaround time. The simple machined approach allows economical
manufacturing of both single custom item orders and large volume
orders. Companies desiring to produce their own plate or component
heater assemblies can contact the factory for design assistance
and purchase only the square and rectangular cartridge or cable
Duratherm is manufacturing the plate and component heater assemblies
any desired combination of material, size and configuration.
The assemblies are available in typical thicknesses of 3/8, 1/2" and
3/4" and can be produced in thinner or thicker sections
as dictated by application requirements. The assemblies are normally
equipped with Duratherm’s “MAXPAK” square or
rectangular cartridge heaters. Smaller plate assemblies can also
be manufactured to accept cable heaters when required. A variety
of lead options including plugs, electrical boxes, terminals
and flexible leads are available. An assortment of sleeve, wire
braid, armor and tubing style lead protection systems can also
be readily implemented.