This is a custom locating tray machined from white Delrin, used to hold and position small round workpieces on an automation line. The part is a flat plate with a grid of cup-shaped pockets, each one holding a workpiece, with a small hole through the bottom of each pocket. It was CNC machined from solid Delrin.

Each pocket holds one round workpiece in place, so a machine or an operator can pick, place, inspect, or work on it at a known location. The pockets have a tapered rim, so a part dropped in slides down and centers itself, which makes loading quick and repeatable. The small hole through the bottom of each pocket does one of a few jobs depending on the line. It can let an ejector pin push the part out from below, act as a vacuum port to hold the part down, or vent air so the part seats fully. Delrin works well here. It holds parts without scratching or marking them, has low friction so parts slide in and release easily, resists wear, and stays dimensionally stable, so the grid keeps locating parts accurately over time.

Part type: Custom Delrin (POM / Acetal) Locating Tray

Material: Delrin

Machining Process: CNC Milling

Surface Finish: As-machined, Deburred

Delrin is DuPont’s brand of POM (acetal). It’s an engineering plastic with low friction, good wear resistance, stiffness, and dimensional stability, and it machines cleanly to accurate sizes and smooth surfaces. The white is the material’s own color, with nothing added.

The part was left as-machined, with all edges, pockets, and holes deburred so nothing catches or marks the workpieces. Before shipping we checked the pocket dimensions, the grid spacing and position, the bottom holes, and the overall flatness against the drawing. The finished tray holds its full grid of workpieces at a uniform position and mounts straight into the automation equipment. Since it’s machined from solid to a set process, the same tray can be reordered in any quantity and made again to the same dimensions.

We provide custom CNC machining services for low-volume production and rapid prototyping for design verification.  Click Here to Upload Your CAD Files