DME 2-Stage S-Core Collapsible Cores
The Next Level of Undercut Solutions
Featuring
Patented Safety Stops
Delivered Finished
Multiple Geometric Shapes Available
Complete Engineering Support
Purchase on DME eStore
Achieve up to 23% deep undercuts with our 2-Stage Collapsible Core
Introducing the next evolution in undercut release technology – the 2-Stage S-Core. Designed specifically to tackle the most challenging geometry in injection-molded components, this innovative solution employs an advanced two-step release mechanism to free threads and complex undercuts prior to final ejection. By gradually collapsing in stages, the system achieves an undercut release of up to 23%.
DME Engineers will review each part model and design a DME 2-Stage S-Core for your specific application. All DME S-Cores utilize safety stops preventing the folding segments from touching each other during ejection or over travel. This results in a longer lasting collapsible core that produces higher quality parts.
The DME S-Core Dovetail Cores allow for: simplified smaller molds, faster cycle times, improved part quality and reduced mold maintenance over traditional devices. Making it a better choice for your threading or undercut application.
The DME 2-Stage S-Core Release Mechanism
It’s design prevents segment contact during over-travel, protecting the integrity of the undercut.
Ready to Mold
First Stage Collapse
(Partial release of undercut)
Second Stage Collapse
(Complete release of undercut)
DME 2-Stage REZ-Latch Bar Locks
COMPLETE YOUR MOLD DESIGN WITH 2-STAGE REZ-LATCH BAR LOCK SYSTEM
Application Example:
In this design, no external rails or an ejector box are needed. Instead, every movement is precisely coordinated by the REZ-LATCH BAR LOCK. The process unfolds in three steps: as the mold opens, the center guide retracts first, triggering the initial stage of collapse. Next, a set of core segments withdraw to complete the second stage, fully collapsing the core. Finally, once the core is completely collapsed, the stripper plate advances and cleanly ejects the finished part.
The DME REZ-Latch Bar Lock System precisely sequences and guides floating plates without extra components, making it ideal for molds using DME S-Cores.
MOLD CLOSE
SECOND STAGE COLLAPSE
FIRST STAGE COLLAPSE
STRIPPER PLATE EJECTION
ASSEMBLY EXAMPLE
Click the button below to request a sample part made with three DME Single Stage S-Cores in one mold. Not only is it a great representation of a complex part design made possible with DME S-Cores, but it’s also a tabletop cell phone stand.
