Plastic Injection Molding 101 - Costs of Manufacturing a Mold

A common question for designers and engineers is “How much will a plastic injection mold cost?”  It makes sense. Injection molds represent the greatest expense in upfront production costs. And, there are many factors that go into determining the cost. With any custom injection molding project, your injection molder will be able to give you the final price tag.

In this article, we will review the variables that can impact the cost so that you can be better informed in making a mold purchasing decision. 

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The Heavy Truth about Injection Molds

Seven hundred pounds of hardened stainless steel. That’s the average weight of an injection mold. Some can weigh over a ton, some just a few hundred pounds, but any way you slice it, you certainly wouldn’t want one to fall on your foot.

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How to Build a Precision Mold for Perfect Parts

A perfect precision part begins with the mold. Building the tool takes time and a great deal of accuracy. It can also represent the largest investment in the manufacturing process, so getting it right is critical to the success of a project.  If your goal is to manufacture parts with a high degree of precision in large-volume, the tooling becomes even more complex.

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Top 5 Types of Plastic Molding 

In today’s manufacturing environment, plastics are being used to make everything from automotive body parts to human body parts. Each application requires a special manufacturing process that can mold the part based on specifications. This article provides a brief overview of the different types of molding and their advantages and applications.

Blow molding – well suited for hollow objects, like bottles

The process follows the basic steps found in glass blowing. A parison (heated plastic mass, generally a tube) is inflated by air. The air pushes the plastic against the mold to form the desired shape. Once cooled, the plastic is ejected.

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A Well-Designed Injection Mold Leads to Manufacturing Success

In our first installment in this series of articles on how to make a quality custom plastic part, we discussed the design factors you need to consider when developing your product.  Designing for manufacturability is the first step in making a high-quality part.  In this article, we focus on building and testing a plastic injection molding tool.

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Plastic Part Design and Manufacturability

There are four key factors that go into making a high-quality plastic injection molded part: part design, tool building, material selection and manufacturing.

In this article, we will start at the beginning of the process, with the part design.

The process of plastic injection molding is designed to produce precision parts at a low cost.  The part design must be developed to maximize the efficiency inherent in high-volume molding.  With the right design, parts can be made consistently and with quality.  Without a good design, costly processing mistakes can be made.

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Top Injection Molding Questions for The Rodon Group

We often field phone calls from inventors or product designers who are looking for a plastic injection resource.  While, that is our core business, it is important to understand the difference between The Rodon Group and other small injection molding companies.

We specialize in high-precision, high-volume projects (we're talking millions, here).  To get a better understanding of the capabilities of The Rodon Group, we created a Q & A filled with useful information.

What are the minimum quantities you can order?

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2014 Top Articles on Plastic Injection Molding

The Rodon Group was busy in 2014 providing information to help companies make better decisions about their plastic manufacturing.  With nearly 80 articles on our blog post, we covered a lot of territory.  

So, we thought we would take a moment to highlight our top sellers; the articles that got the greatest response from our readers.

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Injection Molding Machine Basics

If you are planning to manufacturer plastic parts, there is some basic information you should know about injection molding machines.  This article provides an overview of tonnage and clamping force.  We hope you find this information useful.  If you have specific questions, please do not hesitate to contact us.

Injection Press Basics

While plastic injection molders will help you determine the size of the machine needed to get the best result, a project designer or engineer can get a good estimate based on some basic information.   By knowing approximately what size machine will be required, you can better source a plastic injection molder that will meet your needs.

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Scary plastic part defects and how to avoid them

When purchasing injection molded parts, it is important to understand some of the common but scary problems and defects that impact product quality.  Being familiar with these imperfections and their causes can help you work with injection molders to insure the highest quality part production is achieved.
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