Mold-Masters Hot Runner - Standard Hot Runner Systems; Stack Mold System

8.3.1 Standard Hot Runner Systems
CAUTION
Failure to follow this procedure may result in leakage / damage occurring in
the Hot Runner.
CAUTION
IMPORTANT
Thermally sensitive materials should be purged from the Hot Runner
system prior to shutdown using a thermally stable material with a similar
processing temperature.
1. Turn o󰀨 all heat to the system.
2. Leave the mold cooling system turned on until the Hot Runner system
temperature is within 55°C (130°F) of the mold temperature.
8.3.2 Stack Mold System
CAUTION
Failure to follow this procedure may result in leakage / damage occurring in
the Hot Runner.
CAUTION
IMPORTANT
Thermally sensitive materials should be purged from the Hot Runner
system prior to shutdown using a thermally stable material with a similar
processing temperature.
1. Shutdown spacers, bridges and sub-bridges.
2. Reduce nozzle temperatures to 230°F (110°C).
3. Wait 20 minutes.
4. Shutdown manifolds, submanifolds, inlets and nozzles.
8-4
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SYSTEM STARTUP AND SHUTDOWN
Hot Runner User Manual