Improved Efficiency: Two-shot molding allows multiple components to be molded with a single tool, reducing the amount of labor needed to run your parts and eliminating the need to weld or join components after the molding process.

Mold mounting or connecting directly to existing molding presses, these machines can easily be transported between multiple injection molding machines to facilitate quick program changes. Providing power and control for all functions, these units are easily customized for your individual production needs.

Part Consolidation: Two-shot injection molding reduces the number of components in a finished assembly, eliminating an average of $40K in development, engineering, and validation costs associated with each additional part number.

Our independent process controller allows for full integration with any conventional injection molding machine via a compliant Robot Interface. Our control platform allows for easy configuration of Robot Transfer, Core-Back, Co-Injection, Rotary Systems and mold sequences that can be selected and viewed via our patented touchscreen user display. All equipment control platforms are compliant with the latest Industry 4.0 standards.

3) Small runs of parts can be costly. Due to the complexity of tooling, and the necessity to rid the machine of all previous material before the next product can be made, the setup time can be quite lengthy. Therefore small runs of parts have traditionally always been thought of as too expensive to injection mold.

Improved Quality: Two-shot is carried out within a single tool, allowing for lower tolerances than other molding processes, a high level of accuracy and repeat-ability, and reduced scrap rates.

We are a professional plastic injection mold manufacturer. If you have projects on hand, please feel free to contact us via [email protected]

Two-shot injection molding can solve your company’s product production difficulties. An experienced plastic manufacturer can guide you from concept to finished product and ensure a cost-effective solution.

Our advanced sealing technologies enable our new isolated water union to utilize a no-load carrying function to increase longevity. Wish to add oil or air through the union to control mold cores? No problem, we’ve got you covered there, too.

Developing stand-alone, portable injection molding machines is a direct response to the increased demand for molding operations to be able to react quickly to expanding multiple-material and sampling needs. Our high-speed injection units and rotary systems are specifically built to handle our customers’ wide range of molding operations – covering presses from 40 tons to over 1200 tons.

The two-step process needs only one machine cycle, rotating the initial mold out of the way and putting the secondary mold around the product so that the second, compatible thermoplastic can be inserted into the second mold. Because the technique uses only one cycle instead of separate machine cycles, it costs less for any production run and requires fewer employees to make the finished product while delivering more items per run. It also ensures a strong bond between the materials without the need for further assembly down the line.

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Complex Moldings: Two-shot injection molding allows for the creation of complex mold designs that incorporate multiple materials for functionality that cannot be achieved through other molding processes.

Compared to other methods of plastic molding, two-shot is ultimately a more cost-efficient way of producing an assembly with multiple components. Here’s why:

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Rotary Stack Frames use a two- or four-sided rotary center section, facilitating a higher production yield with a smaller footprint. They can accommodate press sizes up to 3,000 tons.

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ㆍImproved esthetics: Items look better and are more appealing to the consumer when they are crafted of different colored plastics or polymers. The merchandise looks more expensive if it utilizes more than one color or texture ㆍImproved ergonomics: Because the process allows for the use of soft-touch surfaces, the resulting items can have ergonomically designed handles or other parts. This is particularly important for tools, medical devices, and other hand-held items. ㆍEnhanced sealing capabilities: It provides for a better seal when silicone plastics and other rubbery materials are used for gaskets and other parts that require a strong seal. ㆍCombination of hard and soft polymers: It lets you combine both hard and soft polymers for outstanding comfort and utility for even the smallest of products. ㆍReduced misalignments: It can greatly reduce the number of misalignments when compared to over-molding or more traditional insert processes. ㆍComplex mold designs: It enables manufacturers to create more complex mold designs using multiple materials that can’t be effectively bonded using other processes. ㆍExceptionally strong bond: The bond created is exceptionally strong, creating a product that is more durable, more reliable, and with longer life.

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There are a variety of manufacturing methods used to create products using plastic polymers, including two-shot injection molding, compression thermoset molding and extrusion. While all of these are viable manufacturing processes, there are several advantages to this process that make it the top choice for many plastics manufacturers. The process is relatively simple; one material is injected into a mold in order to make the initial section of the product, followed by a second injection of a secondary material that is compatible with the original material. There are three good reasons many manufacturers use this method of manufacturing plastics or polymers.

Vertical Rotary Platens must withstand the rigors of continuous use while maintaining optimum operability and accuracy. Designed for a fast-paced market, these rotary platens are built with quality and performance in mind. Benefits include reduced installation and maintenance costs with increased flexibility, efficiency and overhead savings.

2) Part design restrictions. Plastic parts must be designed with injection molding consideration and must follow the basic rules of injection molding, for example:

Also, the weight and size of the part will determine the tool size and necessary press size. The larger the part, the more difficult and expensive it will be.

1) High tooling costs and long setup lead times. Up-front costs are high due to the design, testing, and tooling required. There is the initial design and prototyping (probably via CNC or 3D printing), then the design of a prototype mold tool to produce replicas of the part in volume. Lastly, and only after extensive testing during both stages, you can finally inject mold a part.

Today, MGS is uniquely positioned as a complete multishot equipment solutions provider – offering Injection Units and Rotary Systems to meet ongoing customer demands. This includes rotary platens, two & four-sided rotary stacks, high-speed rotary spindle systems, two/three/four stage indexing systems and hot runner controllers.

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Don’t forget, because tools are typically made from steel or aluminum, it can be difficult to make design changes. If you need to add plastic to the part, you can make the tool cavity larger by cutting away steel or aluminum. But in order to take away plastic, you need to decrease the size of the tool cavity by adding aluminum or metal to it. This is extremely difficult and in many cases might mean scrapping the tool (or part of it) and starting over.

Product manufacturers favor a wide range of applications for two-shot injection molding, including automotive interior parts, medical equipment, tools, and toys. It allows manufacturers to combine various materials and colors to create a strong and attractive final product. Some materials can be effectively combined with this process, including silicone and thermoplastics, nylon and thermoplastic elastomers, or hard nylon and soft-touch materials.

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Our built-to-order solutions are both portable and flexible. Our equipment is available in a wide range of sizes, able to convert any standard injection molding machine into a multishot machine – in a matter of hours. Whether used for a development project or for long-term production molding, our equipment is conducive to robust, repeatable and reliable processes that will expand your capabilities.