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901 Geneva Parkway N

Lake Geneva, WI 53147 USA

262-249-5620

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Capabilities

Since Plasti-Coil, Inc’s beginning, coil winding bobbins have been at the core of our business. Partnering with hundreds of manufacturers over the years has elevated us to “Experts” in the realm of custom bobbins. The coil winding bobbins that we manufacture have been used in practically every application that call for a plastic bobbin; transformers, solenoids, relays, motors, fuel pumps, s.m.d.s, and many other electrical and electronic devices. Read More

At Plasti-Coil, Inc., not only do we produce millions of plastic injection molded bobbins annually, but provide many secondary operations such as terminal and pin insertion. We operate many specialized machines that makes this process possible. After the injection molding of the bobbins we can either insert one of many types of quick connect terminals; or, you can choose from many different wire sizes for pinning to tie off after the coil winding operation. Read More…

 Plastic insert molding is a custom molding process where plastic is injected into the mold to encapsulate (either fully or partially) a part that was placed into the mold just prior to the injection of plastic. The inserts are generally metal or some higher temperature plastic. Read More…

When it comes to custom plastic molders, we’re simply the best! Our team of engineers and marketing professionals will meet with you to discuss your needs, then offer specific recommendations for your plastic parts. Every detail of your project is taken into account. Read More…

Insert Molding and Overmolding

Plastic insert molding is a custom molding process where plastic is injected into the mold to encapsulate (either fully or partially) a part that was placed into the mold just prior to the injection of plastic. The inserts are generally metal or some higher temperature plastic.

Insert molding can be an effective alternative to the assembly of multiple parts. Benefits include:

  • Reduced assembly and labor costs
  • Increased reliability by eliminating adhesives and fasteners
  • Increased design flexibility

Overmolding is the injection molding process whereby two or more plastic and/or elastomeric materials are molded simultaneously within the same tool. Proper material selection is critical to assure the materials will remain bonded over the life of the part. Plus, overmolding has the additional advantages of:

  • Design flexibility by adding molded-in features
  • The addition of elastomeric material to a rigid component
  • Reduced assembly costs
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