The thermocouple is the only sensing element for temperature closed-loop control in the hot runner system. It collects temperature in real time and feeds it back to the temperature controller, which adjusts the heating power to maintain a constant temperature.
Without an accurate thermocouple, the temperature control system will lose control, resulting in overheating, insufficient heating, temperature fluctuation and other problems.
Thermocouple accuracy, response speed and stability directly determine the effect of temperature control.
All major hot runner brands rely on high-performance thermocouples to achieve stable control.
