1.
ROTO CONSULT
www.ianhansenconsult.com
OPPORTUNITY FOR IMPROVEMENT
SUPACOOL
FUTURE PROOFING YOUR
BUSINESS WITH INNOVATIVE
TECHNOLOGY.
USE SUPACOOL FOR FASTER MOULD COOLING.
Supacool, manufactured by La Plastecnica, is a cooling system
designed to accelerate the cooling of plastic components within
the mould.
•TRAVELS WITH MOULD
•WATER MIST INTERNALLY.
•COOLS FROM INSIDE
•BETTER SHAPE RETENTION.
This is achieved by atomising water inside the plastic part via
an air activated intruding nozzle. The water removes heat
energy by vaporising into steam, which is subsequently vented
out of the mould.
• PHYSICAL PROPERTIES OK
• REDUCED COOLING TIME.
50% COOLING TIME REDUCTION POSSIBLE.
• BALANCED COOLING
• A STEP CHANGE.
Production trials in Australia and New Zealand have successfully
demonstrated cooling cycle time reductions of up to 50% are
possible for water tanks ranging from 500L to 5000L.
Supacool is ideal for bi-axial ovens as the Supacool unit attaches
WATER ABSORBS SIGNIFICANT
AMOUNTS OF ENERGY WHEN IT
VAPORISES
and travels with the mould during the complete heating and
cooling cycle. They can also be used on rock and roll machines.
External fan forced air cooling is not fast enough. To maximise
RELATIVE HEAT TRANSFER
COEFFICIENT VALUES
FORCED AIR
5
EVAPORATING WATER
1000
cooling rate Supacool benefits from simultaneous external water
spray. This also helps balance the internal and external cooling
profile.
SUPACOOL INSTALLED ON 500L MOULD.
1:MACHINE ARM, 2:MOULD, 3:AIRLINE
COUPLER, 4:SUPACOOL UNIT
Ian Hansen | www.ianhansenconsult.com | email: ianhansenconsult@gmail.com

2.
ROTO CONSULT
www.ianhansenconsult.com
OPPORTUNITY FOR IMPROVEMENT
PRODUCTION TRIAL – 5000L TANK.
Supacool was installed on a fabricated steel 5000L water
tank tool, using a 2” Table E flange, running on a standard 4
arm carousel machine. Supacool was installed separate to
the existing vent. Oven temperature was 260C for 29minutes.
Standard cooling was 20minutes ambient air in pre-cool
station and 20minutes in cooling bay, with fan forced air.
SUPACOOL INTERNAL COOLING
PLUS FAN FORCED AIR AND WATER
Using the same oven process conditions we compared the
14MINS
effect of using internal water cooling against standard fan
ONLY FAN FORCED AIR
COOLING
25MINS
14MINS
forced cooling. In the examples shown to the right you can
MOULD IN DEMOULDING STATION
READY FOR SERVICING
see that there was an 11minute or 44% difference.
5000L TANK IMMEDIATELY
AFTER REMOVED FROM MOULD
When you look at the thermographs you can see that the
maximum temperature for both plastic tanks was similar (82C
vs 86C). The Supacool tank displays a point temperature of
56.9C which reflects the effect of the external water spray
used. The pattern indicates poor water misting design. The
external cooling is not uniform. Improving the external water
misting would enable faster cooling of the tank, with a 50%
reduction in cooling time achievable.
Supacool internal water cooling will reduce your cooling cycle time. It will challenge you to reduce your oven
heating cycle time to enable your oven to keep up with cooling speeds.
Supacool provides the step change in the sophistication of rotational moulding
.
Ian Hansen | www.ianhansenconsult.com | email: ianhansenconsult@gmail.com