Old hot runner equipment upgrading and control cabinet renovation is frequent transformation project for molding factories equipped with outdated Husky and domestic early-generation hot runner systems; optimized rearrangement of original messy thermocouple wiring can effectively reduce interference fault and extend sensor average service life without large-scale accessory replacement. Original outdated wiring of many old cabinets mixes thermocouple low-voltage signal wire with high-current heater power cable inside same wiring groove, long-distance parallel layout causes serious electromagnetic induction interference and persistent random temperature jump on display; optimized renovation separates signal trough and power trough completely with fixed metal partition, arranging all thermocouple harness independently away from high-current loop by more than 3cm spacing as standard construction requirement.
Classify wire according to channel number and bind with color-coded plastic ribbon during rearrangement, marking corresponding manifold and nozzle serial number on both ends of each wire terminal to improve later troubleshooting efficiency remarkably. Replace aging cracked ordinary single-shield wire with double-shielded thermocouple cable for key precision channels during cabinet upgrading; rearrange overlong redundant wire into neat coiled bundle near cabinet terminal instead of scattered suspension to shrink cold junction exposed area and lower environmental induced measuring error.
Many renovation teams save construction workload by retaining original chaotic wiring layout, resulting in repeated interference fault after equipment upgrading and failing to improve control stability fundamentally. Scientific standardized wiring optimization becomes core construction item of old hot runner cabinet transformation to lift overall temperature control performance of aging production equipment.
