Roehr's Collapsible Core
is a major breakthrough for molding plastic parts requiring internal
threads, undercuts, protrusions or cut-outs. The patented design
incorporates
only
three moving parts, which utilize conventional mold movements.
In addition to being
automatic in operation, the Collapsible Core enables one to produce
parts that, until now, have been considered impossible to mold.
Parts with internal protrusions, dimples, interrupted threads and
cutouts can now be economically produced on a high or low volume
basis. Cycle time can decrease up to 30% when compared to
unscrewing or other complex actuating mechanisms.
Full technical details,
including basic stripper plate mold construction, core grinding and
mold base machining dimensions are available in our downloadable
Technical Data Book.
