When it comes to manufacturing, something small has got to be easier to make than something big, right? Building a canoe is way simpler than building a cruise ship, so does that same comparison hold up across all types of manufacturing? Is smaller always easier? Absolutely not.
Micro molding (or micromolding or micro-molding) is the process of producing very, very small plastic parts via injection molding. Although it’s one of the most difficult manufacturing processes there is, Stack Plastics excels at micro molding.
Small Scale, Big Success
Micromolding is far more than simply making a smaller version of a standard injection molded part. Micro molded parts aren’t just small, they’re often microscopically so—hence, “micro” molding. When you’re producing parts that are dwarfed by a watch battery, there are certain factors that have to be considered in order to ensure quality and dimensional accuracy.
The first challenge that one faces in micro-molding reinforces the notion of just how small micro-molded parts can be. The varieties of plastic typically used for injection molding have rather large molecules (relatively speaking). When working large molecules into extremely small shapes, the molecules tend to behave differently than they do in normal-size molding applications. Fortunately, the Stack Plastics team has extensive knowledge of the unique polymer materials we work with—not to mention many years of experience—and we’ve long since mastered the art of molecular manipulation.
The second considerable challenge in micromolding is the equipment used. Miniature-scale plastic injected parts require miniature-scale plastic injection molds and tooling. Some mold pins and similar devices measure only a few thousandths of an inch in diameter—at that size, everything is fragile, even stainless steel (a common mold and tooling material). We work with expert mold- and tool-makers to create durable, custom molding apparatuses that will produce the parts you need with perfect precision and repeatability, even for high volume orders.
The Micromolding Experts
Though it’s not always easy, we have the skills, the experience, and the technology to turn any design into a tangible product. If you need high precision, micro-molded plastic injection parts for medical devices, electronics, or any other special application, look no further. Stack Plastics are the micro-experts. Contact us today!