Injection Molded Plastics banner

Prototype Injection Molding

A reliable source for Prototype Injection Molding information and leading Prototype Injection Molding Companies & Suppliers.

Prototype injection molding is a type of injection molding that is used to produce small quantities of products or single prototypes. These prototypes are created in the same way that long-run batches are. Read More…

Prototype Injection Molding Prototype injection molding is a form of injection molding that is used to make short run batches, or single products used for prototype purposes.
Request For Quote

Leading Manufacturers

Denver, CO  |  303-592-9548

For 50 years, LTM Plastics has been a leading manufacturer of injection molded plastics. When working with LTM Plastics, our customers can be assured that they are getting high quality products at a competitive price. We pride ourselves on our team’s communication and collaboration with our customers to meet their needs.

Request A Quote

LTM Plastics $$$

Imlay, MI  |  248-275-1978

If 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.

Request A Quote

MSI Mold $$$

Cleveland, OH  |  440-238-3009

You 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.

Request A Quote

GSH Industries, Inc. $$$

Stuart, FL  |  772-286-9278

We 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.

Request A Quote

Britech Industries $$$

Riverside, CA  |  951-354-0258

At 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...

Request A Quote

Hi-Rel Plastics & Molding $$$

Tempe, AZ  |  951-509-6918

Call 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!

Request A Quote

Molded Devices, Inc. $$$

Valencia, CA  |  844-574-2040

Valencia Plastics is your leading full-service injection molded plastics manufacturer. Our products are made with various materials, including urethane, polyurethane, nylon, acrylic, and polycarbonate. We offer a wide range of sizes from miniature items up to 7 lbs. large parts. We are ISO 9001:2015 compliant. Industries we serve include electrical, military, automotive, aerospace, and...

Request A Quote

Valencia Plastics $$$
placeholder image LTM Plastics MSI Mold GSH Industries, Inc. Britech Industries Hi-Rel Plastics & Molding Molded Devices, Inc. Valencia Plastics

What is Prototype Injection Molding?

However, they are used to show clients and consumers an example of the product to work out more design details or gain permission before investing time and money into a long-run batch of injection molded parts.

The primary goal of prototype injection molding is to ensure that the mold is precisely developed and built before going into mass production. Prototypes are the most cost-effective alternative for small-scale or specialized enterprises.

A prototype mold is intended for the mass manufacture of 'correct material' prototypes and small to medium batches of plastic parts in the thousands. This process was created specifically for producing samples, prototypes, and small series at a low cost and in a short time.

Prototype Injection Molding

Prototype Injection Molding Process

An injection molding machine, raw plastic material, and mold are all required for the injection molding process. In the injection molding machine, the plastic is melted and then injected into the mold, where it cools and solidifies into the final product. Then, plastic granules are placed in a hopper to begin the process.

The granules are then transferred from the hopper to a barrel and heated until molten. Once the granules have melted, a reciprocating screw forces them through the barrel until there is enough material to fill the mold. A shot is the amount of this material used at one time. The shot of liquid material is driven from the barrel into a channel of the mold called a sprue, then through a network of smaller channels called runners, and into the mold cavity after passing through a check valve.

The material begins to cool and harden once it reaches the mold by employing cooling lines surrounding the mold loaded with circulating water. As a result, the product will be solidified sooner.

The operator opens the mold once the material has fully cooled and set, and the molded object can then be automatically ejected. Finally, the runners are cut when the solid product is out of the mold and the product is complete.

Injection Molding

Materials Utilized for Prototype Injection Molding

As previously stated, the prototype injection molding process is similar to the injection molding process in that it is used to make parts by injecting molten plastic into a mold. The plastic then hardens and undergoes secondary processes until it is in its final product form. A variety of materials can be used in this procedure, but thermoplastics are the most popular because of their diversity and useful qualities.

The thermoplastic material is forced into the mold after being heated and blended in a heated barrel; after the mold is filled, the material is cooled and hardens in the shape of the mold. The mold is created to meet the applications' standards and requirements. This is where the prototype is helpful because any flaws in the mold will be seen on the prototype.

Prototype Part

Considerations for Prototype Injection Molding

It is critical to comprehend all the requirements and specifications, regardless of the application. Investing the effort to examine the intended applications thoroughly will significantly save development time and costs, and customers will be more likely to acquire a product tailored to their specific requirements.

This is why it is recommended to seek a reputable prototype injection molding firm to help design your molded product. They can assist in identifying design issues and revising specs to better suit the product's needs and budget.

Advantages and Disadvantages of Prototype Molding

  • Limited risk: Most injection prototype molds are composed of a soft metal alloy or aluminum, which decreases the manufacturing hazards significantly. In comparison to metals, these raw materials are significantly easier to machine. This aspect makes it easy to make changes and alterations to the cavities if necessary. Prototype molds provide a lot of flexibility, which is a significant plus.

  • Prohibitively expensive prototyping technology: Although the cost of producing a prototype mold is lower than that of producing a series mold, the initial investment is usually more when compared to other available technologies. The cost of skilled and technical labor and equipment is higher, and injection materials are likewise more expensive.

Choosing the Correct Prototype Injection Molding Company

To make sure you have the most productive outcome when purchasing Prototype Injection Molding from a Prototype Injection Molding Company, it is important to compare at least 4 Companies using our Prototype Injection Molding directory. Each Prototype Injection Molding Company has a business profile page that highlights their areas of experience and capabilities and a contact form to directly communicate with the manufacturer for more information or request a quote. Review each Prototype Injection Molding business website using our proprietary website previewer to get an idea of what each company specializes in, and then use our simple RFQ form to contact multiple Prototype Injection Molding companies with the same quote.

Prototype Injection Molding Informational Video


Injection Molded Plastics Power Pages

Plastic Gears

Plastic Gears

A plastic gear is a toothed wheel made up of engineering plastic materials that work with others to alter the relation between the speed of an engine and the speed of the driven parts. The engineering plastic materials used in manufacturing plastic gears can be...

Plastic Injection Molding

Plastic Injection Molding

Plastic injection molding, or commonly referred to as injection molding, is a manufacturing process used in the mass fabrication of plastic parts. It involves an injection of molten plastic material into the mold where it cools and...

Thermoplastic Molding

Thermoplastic Molding

Thermoplastic molding is a manufacturing process that works to create fully functional parts by injecting plastic resin into a pre-made mold. Thermoplastic polymers are more widely used than thermosetting...

Plastic Molding Processes

Featured Industries