250°C Gap Uniformity on Extruder Dies

Capacitec is introducing the new non-contact capacitive gap measurement GPD sensor wand that measures extruder lips gaps at operation temperatures up to 250°C. It functions the same as standard dual sensor wands except it opens up new possibilities for use in considerably hotter extrusion and coating die processes. This gap tool can operate short term at up to 300°C. Currently there are no electronic gap gauging tools to confirm gap sizes in adjustable extruder dies operating at these elevated temperatures.

This measurement is important because the gap width changes in relationship to the thermal expansion of the extruder die lip between ambient and production temperatures. The new Capacitec high temperature extruder die gap measurement system now allows users to accurately confirm gap sizes before starting production as well as after the adjustable dies have been reset from sized gap settings. It also allows extruder die manufacturers to study the true position and repeatability of their adjustable die setting processes.