Plastic Injection Molding Service
At EFung we specialize in producing high-quality plastic injection molded parts and mold tools. We offer machining and finishing services to make tools from a variety of materials, and can produce 50 to 100,000+ finished parts in a wide variety of plastics.
With advanced material verification and quality processes we can ensure your tools and parts exceed your expectations. If you’re ready to start your next project, upload your product design
information for a competitive injection molding quote today.
How Plastic Injection Molding Works
Plastic injection molding is by far the most common way to produce large volumes of finished plastic parts for every kind of commercial and industrial use. Molten resin is injected under high
pressure into the cavity of a metal die and then rapidly cooled, forming a solid shape. A single cycle to make a finished part may take anywhere from a few seconds to minutes depending on
part complexity and size.
Advantages Of Plastic Injection Molding
Plastic injection molding provides several different advantages. These include the ability to rapidly create large volumes of parts, a variety of plastic materials, high surface quality and the creation of long-lasting tools.
Thousands of plastic materials to choose from
Make large volumes fast
Stable quality control
Excellent surface quality
Overmolding for more design options
Tools can last up to millions of cycles
Once your plastic injection mold tools are ready, the molding process consists of the
following basic steps:
Step 1. The plastic resin comes in raw pellets. These are dried to the right moisture content, and then if necessary they can be blended with pigments or master batch colorants.
Step 4. The heated mold closes automatically and resin, under great pressure, is injected through a gate and into the mold cavity.
Step 2. The dried pellets are poured into the hopper of the molding machine. A reciprocating screw inside the barrel of the machine will transport these pellets towards the mold.
Step 5. The mold is cooled to solidify the part inside.
Step 3. Within the barrel, the pellets are mixed and heated until fully molten, forming the liquid resin.
Step 6. The mold opens and the part is ejected to begin a new cycle.
The Plastic Injection Molding Process
All plastic material will expand and contract under the influence of heat and moisture. Our tolerance guide will give more general information on the characteristics of most common resin types for typical part features.
We will work closely with you to optimize your designs for manufacturing. We will indicate any areas where poor design may produce thermal stress, shrinkage, warping, etc. Consult our design
guide for more information on common defects and how to avoid them.
Unless otherwise specified, we comply with the DIN 16742 standard tolerances for plastic injection moldings. Read about the visual quality standards that we apply to injection molded parts.
Get Your Prototyping Project Started Today
With a range of services to choose from and guaranteed quality thanks to our inspection services you can trust you will receive great prototypes every time. Contact us today for a free quote!
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