It's the cooling Stupid! #2 Water Temperature

Mold cooling is a function of flow not frigid temperatures.  It is better to put the Mississippi river through the mold than have frost on the cooling lines.  It is amazing to look at a mold and see 4 Ins and 4 Outs on each half of a mold happily filling up the machine's manifold.  However the mold might have six or eight circuits on either side. Therefore the Thinking Man's Technician cheerfully loops things together and all is right with the world – except the cycle time.  Look at the temperature, not on your temperature controller but on your waterlines.  If any circuit's In and Out temperature are more than 2 Degrees F different you have bad heat exchange.  Solution?  Easy. The water pumping capacity on the machine is usually adequate.  However, the line resistance with looped circuits is usually the problem.  Rebuild your manifolds with lots of Ins and Outs so that you never have to loop.

While set up might take a little longer, having stable temperatures through the circuits will improve the cooling of the mold and shorten the cycle time.  Keep the profits.

Call with questions
Bill Tobin – President WJT Associates
wjtassociates.com
303 604 9592