Based on the previously focused background of hot runner response speed testing specifications and graded testing frequencies, mainstream industry standards fall into two core categories:
Heating Response Standard: For conventional hot runners with 16 or fewer points, the total time to rise from room temperature to the set operating temperature must be ≤30 minutes, with temperature deviation at all points on the machine ≤±3℃, and stable temperature control after reaching thermal equilibrium.
Dynamic Adjustment Response Standard: Under normal production conditions, the hot runner's response time to temperature fluctuations must be ≤10 seconds, with temperature control accuracy stable within ±1℃, without overshoot or prolonged lag.
High-precision injection molding scenarios further tighten the dynamic response time to within 5 seconds to meet stringent temperature control requirements.
