Hot runner system plays a big role in the plastics industry. Hot runner molding includes nozzles, manifolds, hot runner controller, auxiliary parts. HRTC is the abbreviation of Hot Runner Temperature Controller, also known as HTC (Hot Runner Controller).
Temperature controller as a common part of the injection mold, is controlling the heating to ensure melt flow in the runner and sprue. Generally, there are cartridge heaters and coil heaters in the manifold. Hot runner molds are easier to start, due to there aren’t any solidified runners to be removed after each under-filled shot, until a full mold shot is achieved and automatic cycling can begin. In hot runner systems, the mold is ready to run when the system reaches operating temperature.
What Does Hot Runner Controller Include?
A hot runner controller generally include Hot Runner Control Modules, Air Circuit Bbreaker, Mainframe, Connectors, Control Cables. Hot runner accessories are heaters, thermocouples, seal rings, connectors and junction boxes.
One module controls two zones, reducing size with lower cost. Output 15 amps, load current, output percent display.
PID Temperature Controller
Compact size, low cost. Accepts J,K,R,S,T type thermocouple. Limit protection functions. No soft-start, Boost functions.
Temperature control of a hot-runner system is a dynamic process. The accuracy and stability of hot runner controller affect the hot runner system. Temperature controllers use different algorithms to determine how much power to apply based on the input from the thermocouples. In other words, they output proportional current through internal data processing, so as to achieve the purpose of temperature control.
Hot Runner Controllers provide dependable temperature control for runnerless/sprueless injection molds, machine nozzles, hot sprue bushings, or any other application requiring thermocouples to monitor the temperature.
Hot Runner Controllers Features Review
Power Supply: AC85V~250V，50/60HZ
PID Auto-tune to ensure accuracy of temperature controlling
Temperature Control Accuracy: ±0.25%F.S
Soft-start to avoid the humidity make heater burn out
Sensor Type: J or K thermocouple
Auto PID, Manual, Stanby Control Mode
Present temperature, load current, output power % indication
Diagnosis for thermocouple open/inverse, heater open, high/low temperature alarm, cut output with protection
Switching to Manual mode while T.C failed
Hot Runner Controller Operating Notes
Check the input power connection. Make sure the wiring is correct and the power supply voltage is within specified range.
Check the hot runner cables connection and confirm it’s exactly same the mold’s wiring.
Turning on the main switch, check whether the power indicator and the fan work normally.
Turning the ON/OFF switch on every control module.
Set target temperature, and check whether the controller reaches the set temperature in stable.
Turn off the main switch on mainframe before any maintenance and replacement of the temperature control card.