for companies of all sizes
Create a huge variety of complex parts of different sizes and shapes, through Injection Molding.
The most widely used manufacturing technique;
enabling high volumes, low costs & design freedom.
Injection molding is the most common plastic molding process and is used to create a huge variety of complex parts of different sizes and shapes.
Whether it’s a snowboard or a vinyl window part being produced, injection molding is efficient and economical, especially if large numbers of items are being made.
Highly complex parts can be produced at a low cost. One of the biggest advancements has come by way of the materials used, and there are now thousands of different formulations available for making ‘plastic.’ Raw materials used in the plastic injection molding process include thermoplastics, thermosets, and elastomers. Also called polymers or resins, there are more than 20,000 unique formulations that can be injected into molds to produce parts with specific properties to be utilized for specific purposes.
Injection molding machines are fairly simple and straightforward, consisting of a hopper where raw material is placed, a heating cylinder and an injection plunger. The process itself is fairly straightforward; however, there are many enhancements and customization techniques that can be used to produce the desired finish and structure. Injection molds, which are usually made from steel, contain cavities that will form the parts. Melted plastic is injected into the mold, filling the cavities. The mold is cooled, and the parts are ejected by pins. Molds are typically made from steel or aluminum.
Larger machines can injection mold car parts; smaller machines can produce very precise plastic parts for surgical applications.
Major advantages of plastic injection molding include:
- Ability to complete high-production rates
- Repeatability of accurate tolerances
- Low labor costs
- Minimal material loss
- Minimal finishing time required
- Wide range of materials available for specific applications
The mold making costs in this method are relatively high (starting from a few hundred euro’s / dollars for tiny components to millions for the most complex big tooling); however, the cost per part is always very economical. The mold manufacturing process until production readiness is labor and time intensive and often stretches several months through different stages: design, order components, machining, testing, adjustments and surface finishes.
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