TCU PERFORMANCE & MOLD COOLING-CIRCUIT MAINTENANCE
Diagnose the complete thermal loop: temperature-control unit, pump, hoses, valves, manifolds, mold passages, water quality, sensors, and process demand.
DIAGNOSE THE TCU AND MOLD CIRCUIT AS ONE SYSTEM
A water or oil temperature-control unit can only deliver its intended performance when the connected process circuit provides adequate flow and heat transfer. Low flow, unstable temperature, long recovery, alarms, and cycle variation may come from TCU sizing, a pump or valve problem, a hose or manifold restriction, sensor error, water quality, or deposits inside the mold.
Use this page to diagnose the interaction. When internal mold contamination is confirmed, review the MDM water channel cleaning unit; when the issue is heater, cooler, pump, flow, or operating range, compare the appropriate MetalPress TCU product.
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CONNECT CLEAN PASSAGES TO TEMPERATURE-CONTROL PERFORMANCE
Injection molding: compare circuit flow and mold-temperature balance before changing TCU settings. Injection mold cooling-circuit cleaning addresses passage contamination.
Die casting: review flow, thermal load, water quality, and die condition together. Die casting mold cooling maintenance addresses the tooling side.
Conformal cooling: verify the design flow and pressure limits for complex passages before cleaning. Conformal cooling passage maintenance explains the special considerations.
SELECT THE CORRECT THERMAL-LOOP CORRECTIVE ACTION
Measure supply and return temperature, flow, pressure behavior, valve position, hose and manifold condition, and production demand. If the TCU cannot meet the required duty with a clean circuit, review capacity, temperature range, pump, heating, and cooling. If the TCU is healthy but one mold circuit remains restricted, use the cooling-circuit maintenance application hub and cleaning guide.
Expert Advice
Diagnose before replacing or cleaning equipment
A restricted mold passage can imitate a TCU problem, while an undersized or malfunctioning TCU can imitate a dirty circuit. Measure the complete loop and assign the corrective action to the correct component.
Related engineering resources: MDM cleaner · Cooling-circuit applications · TCU applications