Insert molding is a more effective alternative to the assembly of discrete parts by means of soldering, adhesives or fasteners. Read More…
Leading Manufacturers
GSH Industries, Inc.
Cleveland, OH | 440-238-3009You won’t find better quality injection molded plastics anywhere else in the industry. We have built ourselves up from a small manufacturing company to a large company with decades of experience.
MSI Mold
Shelby Township, MI | 248-275-1978If you are in need of injection molded plastic parts that are of consistent quality, look no further than MSI Mold! We have over 30 years of experience in design, production, and tooling of custom plastic parts.
Britech Industries
Stuart, FL | 772-286-9278We may have started small, but today, we offer our products and services to companies around the world. We are dedicated to our customers, and our goal is to offer better service and pricing to any customer no matter the size.
IG8 Industries
Hollywood, CA | 415-316-6735At IG8, we are the injection molding experts. Our engineering team will help you design and with manufacturing tools, dies and molds for prototype and full production runs. We can produce error-free and budget-friendly molding from a wide range of plastic materials such as polypropylene, polycarbonate, and nylon. Our goal is to create a product that matches your exact vision, and to free up your schedule so you can focus on growing your business.
Hi-Rel Plastics & Molding
Riverside, CA | 951-354-0258At R.M.Tool, we provide custom CNC Machining to help our customers solve some of their toughest machining needs. Our state-of-the-art CNC machining department is equipped with Milling, Turning and Wire EDM Machining Centers. We can process materials such as Steel, Stainless, Aluminum, and other Exotic Materials. We strive to always please our customers by always delivering quality products. From design to finished product, R.M.Tool is your one stop shop for all of your CNC machining needs.
Molded Devices, Inc.
Riverside, CA | 951-509-6918Call Molded Devices for a fast, competitive quote on plastic molding, plastic injection molding, and medical injection molding services. A wide range of standard & proprietary caps, covers & containers plus custom components for all your needs. We are your one-stop for design consult, quick prototyping, custom formulations & secondary operations!
Nicolet Plastics
Mountain, WI | 715-276-4200Nicolet Plastics is an injection molder that specializes in molding of complex parts from our two world-class facilities in Mountain, WI and Jackson, WI. We service our customers by offering solutions to all your molding needs including Carbon 3D printing and post molding / assembly. Our Mountain plant focuses on low to medium runs while our Jackson plant focuses on medium to high volume work. For over 30 years, we have achieved steady growth due to our fast, flexible team and great customer service.
King Epoxy Technology Partners (KTP)
Pomona, CA | 909-784-6305King Epoxy Emblem Co., Ltd accurately and meticulously engineers plastic molds that produce high quality parts where each part meets pre-established exacting standards. We carefully analyze your design requirements and will assist you in finding a solution that addresses your concerns. We are capable of incorporating any graphic design into our plastic injection molding process.
Insert Molding - GSH IndustriesSome benefits of plastic insert molding include: lower costs, since multiple tasks are being done at once both labor and assembly time is saved; greater durability, the plastic resins mold to the insert more securely than other joining methods; and lighter components, plastic resin weighs less than metal connectors which would typically have joined the components. Insert molding serves industries such as electronics, medical, military, industrial, automotive, aerospace, food processing, commercial, residential, cosmetic and construction.
Insert Molding - GSH IndustriesTypical insert injection molding applications include cable embedded electronics, medical devices, printers, thermostats, aerosol nozzles, electrical plugs, screwdrivers, needle hubs, bifurcations and threaded fasteners. Materials used during the insert molding process includes polystyrene, polyvinyl chloride, polyethylene, polypropylene, thermoplastic elastomers and many more engineering plastics.
Insert molding is done through an injection molding machine. On the top of the machine is a hopper, through which the plastic granules enter the barrel of the machine. In the barrel, the plastic granules are heated until they become molten plastic. A reciprocating screw inside of the barrel carries the plastic granules into the mold cavity by way of a nozzle. The nozzle leads directly into the mold cavity. The mold is attached to a moveable platen so that it can push into and pull back from the mold cavity. An insert, which can be metal or plastic, is placed into the mold cavity just before molding.
The molten plastic is then injected into the cavity through the nozzle and molds around the insert piece. Once the plastic has cooled, the mold is opened and the newly joined components are removed. Two types of bonding occur during insert molding; mechanical and molecular. Molecular bonding takes place by either shrinking the encapsulating plastic resin around the insert as it cools or surrounding the irregularities on the insert’s surface by the plastic resin.
Mechanical bonding, however, only takes place when the insert’s material is the same as or very similar to the plastic resin. In addition there are three types of insert molding: low volume, 100-1000 parts that the operator inserts all at once; medium volume, 1000-10,000 parts that the operator loads in multiples and is aided by a loading device; and high volume, 100,000 parts or more that are loaded automatically.