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.

Read More >>

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.

Read More >>

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?

Read More >>

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.

Read More >>

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.

Read More >>

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.
Read More >>

The Pros and Cons of Cold Versus Hot Runner Molds

Every plastic part starts in a mold.   Molds are classified into two main types, cold runner and hot runner.  Each has its advantages and disadvantages.   Your plastic injection molder will be able to give you the costs and benefits of using these different systems.  However, by understanding the key differences of these technologies, you can have a more educated discussion on the type of mold that would best fit your project. 

Read More >>

The Rodon Group and High-Volume Molding

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?

Read More >>

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.
blow_molding_machine
The blow molding process is designed to manufacture high volume, one-piece hollow objects. If you need to make lots of bottles, this is the process for you. Blow molding creates very uniform, thin walled containers. And, it can do so very economically.


Compression Molding – Well suited for larger objects like auto parts.


The name of this molding method says everything.  A heated plastic material is placed in a heated mold and is then compressed into shape. The plastic can be in bulk but often comes in sheets. The heating process, called curing, insures the final part will maintain its integrity. As with other molding methods, once the part has been shaped, it is then removed from the mold. If sheeting plastic material is used, the material is first trimmed in the mold before the part is removed.

This method of molding is very suitable to high-strength compounds like thermosetting resins as well as fiberglass and reinforced plastics. The superior strength properties of the materials used in compression molding make it an invaluable process for the automotive industry.

Extrusion Molding – Well suited for long hollow formed applications like tubing, pipes and straws.

While other forms of molding uses extrusion to get the plastic resins into a mold, this process extrudes the melted plastic directly into a die. The die shape, not a mold, determines the shape of the final product. The extruded “tubing” is cooled and can be cut or rolled for shipment.

Read More >>

Material Requirement Planning system improves manufacturing efficiency

Like many companies, The Rodon Group recognizes our customers are our most valuable asset.  We pride ourselves on the ability to develop end-to-end manufacturing solutions that meet their demands on time, every time.

Read More >>