Timing controller in hot runner also called sequential temperature controller box, is consisted of power controlled circuit, power conversion circuit, mechanical dial timing circuit, digital trigger. Timing controller in hot runner controlled the circuit though the controlling signal output by mechanical dial timing circuit. Timing controller in hot runner could output any electric energy in 0~99 second or minute. You can change the power supply and power cut time. Power conversion circuit will change the 220v alternating current power into 12vdirect current power to be the working power of other five unit circuit. Timing controller in hot runner can output two controlling signals.