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Injection Molding Services
Need to quickly test out the market with low-volume parts? Or want to create large quantities of production parts? Then you can’t go wrong with our injection molding services. At SMFR, we produce high-quality prototype moldings from aluminum molds with quick turnaround times. Our customers can test out their designs for manufacturability and functionality, fast. We also offer plastic injection molding for your high-volume production needs.
Whether you need rapid tooling, mass production mold making or end-use plastic molding with tight tolerances, our team of experienced specialists can offer a cost-effective solution at each stage.
Advantages of Injection Molding with SMFR
There are huge numbers of injection molding providers. Why should you choose us as your injection molding supplier? Here are the top 3 reasons:
1. Experienced Engineers
Our molding engineers have rich experience after handling thousands of projects, whatever parts they come across, they can get the right parameters immediately.
2. Advanced Facilities
By using imported and top brand locally made injection molding machines, we are able to make the most precise moldings.
3. Unlimited Capacities
Aside from our in-house facilities, we have built up strong networks with our partners. Full fleets of injection machines, from 10 tons to 1000 tons are ready for your orders without delay.
What is injection molding?
Plastic injection molding is the process of making plastic parts via the injection of molten plastic — typically a thermoplastic — into a metal mold, which is usually made from steel or aluminum.
The machine feeds raw material into the mold itself, the geometry of which is effectively a negative impression of the final part and which usually consists of two sections: an injection (A) mold and an ejector (B) mold.
The space between the two sections is the mold cavity, into which material is injected.
Although capable of producing a very wide range of parts, injection molding has some design constraints. Parts must have fairly narrow walls, should generally avoid overhanging features, and must have some degree of draft (tapered sides) so the part can be ejected from the mold.
Injection molding is principally used with plastics, and thermoplastics in particular. Thermoplastics are polymers that soften at an elevated temperature (at which point they can be freely injected into a mold) then return to a solid state after cooling. Injection molding also works with thermosets, which can be cured to make a solid but cannot then be melted back into a liquid state. Less common are elastomers.
Plastic Injection Molding FAQ
What plastics can you use with injection molding?
Injection molding can use almost any type of plastic that can also be combined together. This unmatched versatility is what makes injection molding so popular and suitable for some of the most demanding industries in the world. You can check out our selection of available materials and finishes on this page.
What is the process behind injection molding?
The plastic pellets are melted and are then inserted in liquid form into the mold tool, where it cools and takes the required shape. The process allows for high precision and tight tolerances because it can be replicated exactly each time.
Why should I use injection molding?
Injection molding is one of the most affordable ways to manufacture large quantities of parts, especially for bigger production runs. Even though designing and creating the mold can take time, after that, the process becomes very affordable and efficient.
How quickly can you produce parts using injection molding?
Before production can begin, we will first need to design the injection mold tool. How long this takes will depend on the complexity of your project, but the usual timeline can be as short as a week and as long as a couple of months.
