The 3 level mold allows a molder to increase a further
50% in productivity using the same injection machine
normally running a two level mold, yet not able to fit a
4 level mold due to limited shut height limitations
encountered on deep draw parts (see 4 Level Stack
Molds).
3 Level molds can be developed from a pre-engineered
convertible 2 level mold or single face mold and can
also be designed to be convertible to 4 level for future
growth, should part volume demand increase.
3 Level molds are possible using StackTeck´s patented
Valveless Melt Transfer System (VMTS), allowing the
transfer of melt to each of the mold’s independent,
fully balanced, hot runner manifolds found on each mold
level, using a proprietary central distribution block.
BENEFITS
Allows optimal molding efficiencies through
maximum cavitation vs. a similar 2 Level mold
No additional tonnage increase requirement vs. a
two level mold.
Fits standard extended shut height injection
machines (300 or larger ton machines)
Mold design can be enhanced with QPC technology
(see QPC).
Cycle time affected only fractions of a second due
to an increase in opening stroke to allow opening of both
mold faces.
StackTeck’s cascade approach allows for
pre-engineered convertible molds with 1, 2 or 3
opening faces to be converted to a greater number of
opening faces, should future part volume increase.
