Injection Molds 101: Cold Runner vs. Hot Runner Molds

Ever since its introduction in the late 19th century, plastic injection molding has revolutionized the way we create plastic products. Although the technology has evolved significantly over the years, many injection molds today still fall into two main categories: hot runner and cold runner systems. Each of these systems has their own benefits and limitations which make them better suited for specific applications.

Understanding the differences between these technologies can help you have a more productive and informed discussion with your plastic injection specialist to determine the most feasible option for your unique application.

Read More >>

Plastic Injection Molding 101: Understanding The Types

In today’s ever-evolving world of manufacturing, plastics are being used to make everything from automotive body parts to synthetic human body parts. To create critical components and ensure optimal performance, many manufacturers choose to make use of plastic injection molding. 

Read More >>

Blow Molding vs. Injection Molding: What's the Difference?

When creating a product that requires molding plastic parts, you have several processes to choose from, depending on the type of application and type of part you want to produce. Injection molding and blow molding are the two most popular ways to produce high quality, cost-effective plastic parts. But before you dive into researching different molders and manufacturers, you want to arm yourself with the differences between these two processes. Here's a quick guide to help you differentiate: 

Read More >>

5 Common Plastic Resins Used in Injection Molding

With hundreds of commodity and engineering resins available on the market today, the material selection process for plastic injection molding jobs can often seem daunting at first. 

At The Rodon Group, we understand the unique benefits and properties of different types of plastics and work closely with clients to find the best fit for their project.

Read More >>

How to Choose the Best Resin Material for Your Plastic Part

This review of plastic resins will focus on the essential characteristics of polymers with some examples of popular resins and their applications.

To select the best resin for your manufacturing project, being able to answer the questions below will help guide you to the right material.

Read More >>

How to Design the Perfect Plastic Part

Used to produce high-quality precision parts at large volumes and low costs, plastic injection molding offers versatile solutions for a range of applications.

Read More >>

Plastic Injection Molding 101 - Determining the Cost of a Mold

A common question for those looking to source plastic injection molder is “How much will a plastic injection mold cost?” It makes sense. The actual mold represents 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 should 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 when making a mold purchasing decision. 

The merits of having a mold built in the United States

The Rodon Group has been in this business long enough to have worked with, or attempted to work with, molds that were created in Asia (more specifically, China). Many of these molds are not built to meet strict tolerances, since they don’t have to be. As labor costs rise in China, this no longer becomes an affordable manufacturing process. In addition, molds made in other countries are made from lesser quality steel or from aluminum. Again, this causes quality issues and shortens the life of the mold.  Most high-production molders in this country use only the best steel available for the mold base and cavities.  They utilize the latest technology in CNC machining and have seasoned tool makers who know how to create molds that meet the highest performance standards.  When sourcing companies, be sure to look for U.S. based manufacturers. 

Featured New Guide: 5 Advantages of Outsourcing Your Plastic Injection Molding

Read More >>

Key Terms to Know Regarding Plastic Injection Molding

Plastic injection molding has a language all it’s own and with so many unique terms it can be difficult to learn the language. We put together a list of the top terms to know when discussing plastic injection molding, mold parts, materials, and problems. We hope you find this to be a useful resource.

Read More >>

Plastic Injection Molding Basics 101 - The Injection Press

Our website is frequently visited by product designers, engineers and purchasing agents who are looking for information on plastic injection molding. With this in mind, we created a series of "Basics 101" type articles that are developed to give our readers a better understanding of the presses, processes and pitfalls in our industry. 

We begin our series with information on the basics of plastic injection molding presses. 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.

Read More >>