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The Rodon Blog - A Focus on Plastic Injection Molding and American Manufacturing

6 Common Injection Molding Defects and How To Avoid Them

Posted by Jill Worth

9/13/16 6:30 AM

When working with any manufacturing process, a number of defects unique to that process commonly occur. This is true across many processes and industries, including injection molding and high volume injection molding.

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Topics: Plastic Injection Molding

Injection Molding vs 3D Printing

Posted by Jill Worth

8/23/16 6:00 AM

Earlier last year, we discussed 3D printing. Though it has been around for quite a while, the new printing technique has only been a player in the public consciousness for about five years.

In that time, the public’s perception of what 3D printing can do has eclipsed the process’ actual capabilities. And with more recognition come more inquiries — everybody wants to explore 3D printing as an option for their next project, and are eager  to want to move on from more traditional methods, such as injection molding.

3D Printing and Injection Molding

The two processes are similar — they both primarily produce parts and components from plastic, and they are both capable of high degrees of geometric complexity. However, there are important differences as well.

One of the more appealing aspects of 3D printing is the absence of steep initial costs. Because of its need for specially tooled dies, the creation of which is an expensive process, injection molding requires considerable initial costs. Though imposing at first, these startup costs are amortized over the lifespan of the die and the production run — in large volume injection molding projects, the startup costs are amortized over more individual parts, leading to a relatively low per-part cost.

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Topics: Plastic Injection Molding, Plastic Injection Molding Costs, 3D Printing

Why Consider Outsourcing Your Plastic Injection Molding

Posted by Jill Worth

7/26/16 8:00 AM

Manufacturing plastic injection molded components in-house as part of an end product can prove to be a major challenge from an efficiency, quality and cost perspective. Over the years, Rodon has garnered many of our largest customers who were doing their best to manufacture their injection molded components in-house but found the process to be problematic and inefficient.

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Topics: Plastic Injection Molding, Plastic Injection Molding Costs

3 Case Studies for Custom Plastic Injection Molding

Posted by Jill Worth

7/19/16 6:30 AM

At Rodon, we manufacture billions of parts every year and have done so since 1956.  We are proud to have earned a reputation for being one of the best in the industry, offering high-quality, low-cost solutions. When businesses have a need for high volume, high tolerance, intricate parts, they turn to custom plastic injection molding

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Topics: Plastic Injection Molding, Plastic Manufacturing

Top 5 Most Common Plastic Resins for Injection Molding

Posted by Jill Worth

7/12/16 6:30 AM

The job of a plastic injection molder involves helping the client select the best available plastic material given the application. The selection and availability of various polymers has exploded over the past 30 years. Today, it can be overwhelming to figure out what the best plastic material is for your project.

When clients come to us with their designs, they often suggest a particular material, due simply to their familiarity with it. However, at The Rodon Group, we feel it’s our duty, when applicable, to suggest alternatives when they exist.

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Topics: Plastic Injection Molding, Plastic Manufacturing

Plastic Injection Molding 101: Choosing the best resin material

Posted by Jill Worth

6/7/16 6:30 AM

The number of polymer compounds has grown over the past 20 years.  As a result, plastics are being used in more applications than ever before.  These materials are gaining a reputation for strength and endurance.  Combine these improvements with the advantages of corrosion resistance and aesthetic appeal and plastics are taking center stage in the manufacturing of many consumer and industrial components.  Due to their versatility, strength and light weight characteristics, plastics are also taking a larger role in the transportation, medical and construction industries. 

Here are five requirements to keep in mind when choosing your resin:

    • The final part appearance including surface texture and transparency or color requirements
    • The part strength, flexibility or rigidity
    • The chemical or environmental (the wind, rain, cold or heat) resistance
    • Regulatory requirements that need to be met including FDA, RoHS, REACH and NSF
    • The life expectancy of the part
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Topics: Plastic Injection Molding, Plastic Manufacturing

Top 12 Manufacturing and Plastic Industry Blogs to Follow

Posted by Jill Worth

5/24/16 9:00 AM

There is an enormous amount of content out there for us to read every day. Figuring out which of it is worthwhile of your time isn't an easy task. If you are looking to stay up-to-date, blogs are rich with helpful, educational and useful information and tips.   We hope you enjoy reading our blog and that we can help keep you informed on the topics of plastic injection molding, manufacturing and STEM careers.  

Below we've compiled 12 other manufacturing and plastics industry blogs (along with their Twitter names) to consider following on a weekly (or even daily) basis. Some of them are industry favorites, while others are our personal favorites. Let us know what you think and if you have others you'd add to our list.

** If you're not a regular subscriber to our blog, please consider doing so by filling out the brief form just to the top right of this post.  Thank you!**

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Topics: Plastic Injection Molding, Manufacturing

[eBook] An Introduction to Plastic Injection Molding

Posted by Jill Worth

5/17/16 6:30 AM

Our eBook "An Introduction to Plastic Injection Molding" was developed with designers, engineers and purchasing specialists in mind.  It is written to provide a basic understanding of plastic injection molding presses, processes and costs.  Our goal is to make our visitors and customers more knowledgeable about what goes into making a plastic part. 

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Topics: Plastic Injection Molding, Plastic Manufacturing

The Importance of Design Engineering in Plastic Injection Molding

Posted by The Rodon Group Marketing Team

5/10/16 8:00 AM

Before you can manufacture a plastic part you need to have a solid design in place. Once done, you can build an injection mold to meet the product specifications. 

The role of the Design Engineer is critical in this process. They assess the part design and make modifications and recommendations based on key product requirements including product usage and function. The engineer will need to know:

  • How will the part be used? Is it a standalone product or a component of a larger assembly?
  • What are the dimensional and tensile requirements?
  • Does the part need to withstand elements, pressure, chemicals?

A plastic injection mold design is built with these criteria in mind. Mold cavities, vents and gate placement will vary based not only on the part design but the type of resin as well. Taking all of these manufacturing factors into account is a challenging task and one that requires a strong knowledge base, not only of mold design but the injection molding process as well.

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Topics: Plastic Injection Molding, The Rodon Group

Everyday items made using plastic injection molding

Posted by Jill Worth

5/3/16 6:30 AM

Plastic injection molding is a process of forming plastic, a durable, resinous material into just about any form or fashion imaginable.  The first injection molding machine was invented and patented by brothers John and Isaiah Hyatt in 1872.  It resembled a large hypodermic needle, with a heated cylinder through which a large plunger forced the gooey mass into a mold.  Today the process is more complicated, although the basic principle of plastic being injected into a waiting mold is still the same. One of the biggest advancements has come by way of the materials used, and there are now thousands of different formulations available for making 'plastic.'

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Topics: Plastic Injection Molding, Plastic Manufacturing

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