manufactured custom mini core pins

Ejector Pins

Modern Grinding manufactures ejector pins for the die cast, injection molding and tooling industry. Due to our specialization in the complex medical industry, we are able to acheive very tight tolerances on your product designs. Ejector pins are very similar to core pins which we also manufacture.

Our custom ejector pins can be ground with multiple step core pins, core pin tapers, points, sphericals, knots, knobs, bumps and flats.

Modern Grinding is optimized for prototype or large run production with fast turnaround. Contact us today for help on your next project or learn about additional pin manufacturing services.


Quote Your Next Project

  • Guidewires, Mandrels, Core Wires
  • K-Wires, Steinmann Pins, Needles
  • Coils, Springs, Orthopedic Pins
  • Custom Medical Wire Prototypes



In the News

Check out Modern Grinding in a recent issue of Micro Manufacturing for a feature article about our micro manufacturing capabilities.




Also, our very own Jim Boldig was recognized as a Top 30 under 30 Medtech Innovator by Qmed.


Below is an interesting informational video about how needles are manufactured. Our process is more customized.