Unlike conventional cartridge heaters, Watt-Flex
heaters use a continuous heating coil that allows for a more uniform
By varying the watt-density, Watt-Flex heaters can also
for customized temperature profiles with varying zones of heat along the heater.
Uniform Temperature Profile
Uniform sheath temperature is vital when molding heat-sensitive
plastics where the temperature window between gate freeze-off and
material degradation is very narrow. The test results below highlight
the superior temperature profile along the length of a torpedo probe
heated by a Watt-Flex heater.
Customized Temperature Profile
By varying the watt-density, the temperature profile may be custom
matched to your specific requirements.
For example, certain applications
such as those requiring temperatures higher at the tip of a molding
probe than along the sheath can be accomplished with Watt-Flex
heaters, but not with conventional cartridge heaters. Or, watt
density can be varied to compensate for
process heat loss."