It's most often used for the manufacturing plastic parts at scale due to its low material waste and low cost per part. It’s an ideal manufacturing process for industries like medical devices, consumer products, and automotive.

Resin pellets are loaded into a barrel where they will eventually be melted, compressed, and injected into the mold’s runner system. Hot resin is shot into the mold cavity through the gates and the part is molded. Ejector pins facilitate removal of the part from the mold where it falls into a loading bin. When the run is complete, parts (or the initial sample run) are boxed and shipped shortly thereafter.

1. Cost efficiency, it reduced core side compare with transfer method, but it still can achieve the 2k injection process in one mold.

Injection molding is a manufacturing process that consists of filling a metal mold cavity with liquid plastic resin, which then cools and forms a plastic part.

The technology is relatively mature compared with the traditional over-molding tech, double color can be injected at the same time, high efficiency and good stability, this  technology can be applied to a variety of products.

The manufacturing process for molded parts is complex. Before your parts are even molded, we're there to help you with comprehensive manufacturability feedback and consultative design services, so you can avoid mold design pitfalls before the resin hits the mold. From there, our production process is documented and optimized using scientific molding so you get high-quality parts consistently and reliably with every production run.

Our digital factories create prototypes and low-volume parts fast, while our manufacturing network, offers advanced capabilities and volume pricing.

Get machined parts anodized and chromate plated with our quick-turn finishing option. Eligible materials include aluminum 6061/6082 and 7075.

While the molds themselves are similar, part quantities, lifetime maintenance, quality documentation, and pricing vary depending on which service option is chosen. The right one depends on your project needs.

Multi-component molding is an efficient and cost effective technology for molding custom plastic parts with two or three plastic resins or colors in a single operation, and at faster cycle time and flash free.

No one ever said that designing and manufacturing molded parts was easy. Our goal is to get you through it quickly and with quality parts. A good starting point is our Design for Moldability Toolkit.

Tough Black (Loctite Henkel 3843) and Ceramic-Filled (BASF 3280) are two new advanced photopolymer materials now available for 3D printing.

Want to learn more about injection molding? Sign up to receive a Design Cube. This physical aid demonstrates how to properly design features commonly found on molded parts.

This complete reference guide walks you through everything from quoting, design analysis, and shipment to best practices that ensure your model is optimized for molding.

2. Good quality stability: the two molding steps can be done in one cavity and it can avoid part warpage issue during the mold open and part transfer. It is more stable than over-molding method.

Our thermoplastic injection molding is a standard process involving an aluminum mold with no heating or cooling lines running through it, which means cycle times are a bit longer. As part of the scientific molding process, our molders independently optimize and monitor fill speed, hold pressure, and hold time, and periodically inspect part quality and cosmetics. During the molding process, we use an automated inline CMM to ensure dimensional accuracy, as well as generate a detailed process capability study and FAI report.

2. The disadvantage is that the injection molding of product #1 and product #2 cannot be injected at the same time, resulting in loss of efficiency.

Our basic guidelines for plastic injection molding include important design considerations to help improve part moldability, enhance cosmetic appearance, and reduce overall production time. View our design guidelines page for more details.

ASM has mastered this technology and has manufactured parts using multi-component molding process for many years. With 4 sets 2K injection machines in house, and with our leading 2K technology, we are capable of manufacturing different types of 2K molds.

We have wide selection of more than 100 thermoplastic and thermoset materials. And if you're looking for alternative material options, check out our guide to resin substitutes for ABS, PC, PP, and other commonly molded plastics.

Critical-to-quality (CTQ) dimensions you call out on models let us know what areas are most crucial to the success of your parts. Once the parts start molding, the process and samples are qualified using automated inline CMM technology, generating a detailed FAI and process capability study with no additional lead time.

Tolerances: Typically, Protolabs can maintain a machining tolerance of +/- 0.003 in. (0.08mm) with an included resin tolerance that can be greater than but no less than +/- 0.002 in./in. (0.002mm/mm).

4. Mold rotates on horizontal turn table, which is more stable than vertical rotation and has no inclination. It helps for life of mold, especially large molds.

1. Production in same machine with double time of cavities compared with normal mold. It can increase production efficiency.

2. With rotation core method, it can realize the various injection of material / color. Especially for small product, it will be more controllable on part dimension than rotary table method.

1. Use robot arm to switch the molding part instead of rotary table method, it will be helpful to save investment cost of equipment.

Proto Labs, Inc. 5540 Pioneer Creek Dr. Maple Plain, MN 55359 United States P: 877-479-3680 F: 763-479-2679 E: [email protected]

Our plastic injection molding process produces custom prototypes and end-use production parts with lead times as fast as 1 day. We use aluminum molds that offer cost-efficient tooling and accelerated manufacturing cycles, and stock about 200 different thermoplastic resins.

Our helpful design aid demonstrates part features that are too thin or too thick, bad bosses, right and wrong ribs, and other considerations to be mindful of while designing parts for injection molding.

Depending on your application's requirements, you can choose from the following when requesting an injection molding quote.

It has been very enlightening to us here at HP that we are able to get parts so rapidly out of the actual materials that we're going to use in the final production.