Taking over 20 years of proven 3-piece collapsing core
experience for closures, StackTeck has further improved
the end use of this technology by developing an
innovative 5-piece collapsing core design. This
technology enables the molding of a host of creative
packaging solutions, such as: 360° of internal threads
or undercuts as well as containers or closures with
smaller neck diameters than the core or body (ex.
cosmetic jars).
This technology opens the window to injection-molded parts typically molded via injection-blow or extrusion-blow methods. Molding companies will benefit from this technology with better quality parts, reduced part weight, improved cycle time (three-fold), and increased productivity.
BENEFITS
Ability to mold 360° undercuts or threads on
closures or containers
Ability to mold containers with smaller neck
diameters than its body (core).
Technology available in stack molds
Reduction in part thickness
Alternative technology to extrusion or injection
blow molding methods
Mold wear is eliminated due to robust wear backing
plates and non-reliance of frictional forces during
the collapse of the core inserts
All components are water cooled to achieve minimal
cycle times
