Vented Ejector Pins Targets More Efficient Gas Removal for Molds
Next Chapter Manufacturing presents its 3D-printed NXC vented ejector pins which offers an integrated porous core to enable gas to pass through the face of the pin and vent out the side, avoiding gas traps.
Photo Credit: Next Chapter Manufacturing
Next Chapter Manufacturing presents its NXC vented ejector pins which target the persistent problem of gas traps in molds. Unlike traditional venting methods, which lead to high scrap levels, cracking and weak parts that may result in rejections and lost profits, the company says its ejector pins, 10-15 times the venting volume over traditional venting, enable gas to exhaust out of the mold efficiently.
A drop-in replacement for industry-standard ejector pin sizes, the patent-pending design is made from H-13, manufactured via metal 3D printing and ground to exacting tolerances for a proper fit. The full dense outer surface is PVD coated to ensure smooth fit and consistent wear against galling or stuck pins. The integrated porous core (20-30 microns) enables gas to pass through the face of the pin and vent out to atmosphere on the side of the pin through ports. Next Chapter Manufacturing says these pins are suitable for all typical filled and unfilled plastic resin grades.
Pins can be placed in the area where a gas trap or burning is present on plastic parts to enable the gas to exhaust out. These can also be placed at end of fill under the part to provide venting where parting line vents may become blocked or coined over.
Related Content
-
How Hybrid Tooling Accelerates Product Development, Sustainability for PepsiCo
The consumer products giant used to wait weeks and spend thousands on each iteration of a prototype blow mold. Now, new blow molds are available in days and cost just a few hundred dollars.
-
MMT Chats: 4 Keys to a Successful Mold-Building Operation: Innovation, Transparency, Accessibility and Relationship
MoldMaking Technology Editorial Director Christina Fuges chats with Steve Michon, co-owner of Zero Tolerance in Clinton Township, Michigan, about the excitement of solving problems, the benefits of showing gratitude, the real struggle with delegation and the importance of staying on top of technology. This episode is brought to you by ISCAR with New Ideas for Machining Intelligently.
-
3D Printing Innovates Hot Runner Manifold Design
Metal 3D printing combined with a conventionally machined manifold block overcomes flow shadows on valve gates and offers faster color changes while providing closer system pitch centerlines between cavities.