At Star Rapid, we specialize in high-quality custom plastic injection molding and mold tool making. Plastic injection molding is by far the industry’s most common way to manufacture plastic parts, especially when making larger quantities. We provide custom molding for 50 to 100,000+ injection molded parts as well as a wide range of other manufacturing and finishing services to complete your project. Contact our international injection molding team for a free quote and to talk about your next injection molding project.
Plastic injection molding involves melting granular plastic pellets into a liquid form and then compressing this liquid into the empty cavity of a mold tool. The plastic will retain the shape of the mold as well as the surface texture of the walls of the cavity. After an optimized injection and cooling phase, the now solidified plastic part is ejected and the molding cycle is repeated. This molding cycle can take from as little as a few seconds to several minutes depending upon part size, molding resin and part design.
At Star Rapid, we make great tools for low-volume manufacturing. When making your mold tool we use aluminum 7075, pre-hardened tool steels such as P20 and NAK-80, and fully-hardened H13 tool steel. The material used will depend on your specifications, the type of resin and the number of parts you want to produce.
Aluminum tools are quickest to produce and most cost effective. Aluminum is softer and therefore suited to smaller volumes. For larger volume production, and for aggressive resins or part geometries requiring thin blades or ribs, it’s best to use harder materials that are more durable.
Steel tools are tougher and more durable but can take longer to produce. These are suited for larger volumes or when injecting abrasive or corrosive plastics that would damage aluminum molds.
In a hurry for quick-turnaround plastic injection mold tools? Our service was created to provide injection tooling in as little as half the time of conventional tools. We do this by streamlining the entire tooling project, from conception to completion, using a single master machinist who takes ownership of the project from start to finish.