Tag Archives: injection-molding

The difference between cast urethane and injection molding

    At Harkness Industries, we offer both injection molding and cast urethane. Understanding the difference between these two types of products can make a big difference in your bottom line.         Injection Molding Injection molding starts with the creation of what is called a hard tool. Think of this like a mold, a hard mold. The...
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High Volumes, Minimal Waste with Injection Molding

In previous posts, we've mentioned that injection molding is very efficient for large production numbers, but just how it's so efficient is often a mystery to those outside of the industry. It begins with the mold itself. When we get specs from a client, we ensure our molds are absolutely precise to reduce the...
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Why Plastic Injection Molding is Efficient

At Harkness Industries, we understand that decisions around your plastic needs often involve more than just the ability to output a finished product. Sometimes, knowing which process can be quicker, uses less material, or outputs a more consistent piece is what contributes to the ultimate choice. If you're considering plastic injection molding, here are...
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Harkness Industries Recertified as ISO 9001-2008 Compliant

Harkness Industries successfully completed a recertification audit by DQS Inc. in December, 2015. The certification verifies that the Quality Management System implemented and maintained by Harkness meets the requirements of the ISO 9001-2008 standard for the manufacture of urethane sheets, tubes, rods, bars, as well as custom-molded urethanes and injection molding and extrusion of engineering resins. Harkness...
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Molding – Understanding the Difference Between Injection and Cast

Your project is unique to your needs and determining which process to use comes down to a few key differences in the production processes between urethane cast molding and injection molding. First, let's consider the similarities: Both processes allow for a multitude of colors, soft or rigid durometeres and the ability to "wrap" or cast around...
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Exciting Changes at Harkness

There are a number of exciting changes at Harkness we're pleased to share: Introducing two new member to our team; Gregg Hamel and Taegan Williams. Our new Senior Manufacturing Engineer, Gregg Hamel, joined us at the end of March to support custom urethane manufacturing and product development. With a Bachelor of Science degree in Chemical Engineering, Gregg...
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Harkness February News Update

We hope your February is off to a great start. We have a few exciting updates to bring you this month, so let's get to it! First, we would like to welcome Tim Emerson to the team as our Controller. Tim brings with him experience in strategic planning, operations management, as well as financial analysis and...
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The Capabilities of Custom Urethane

Urethane's unique physical properties allow it to be molded into thousands of custom parts. Because of it's abrasion resistance, high load capability, and superior dynamic properties, Urethane is the perfect material for creating custom parts. When creating sometimes intricately designed custom shapes, urethane will begin as a rod, tube, sheet or bar. This shape is...
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Three Advancements That Have Driven Injection Molding Technology

Injection molding technology has made major advances in the last 25 years, from largely a world of shoot-and-ship to doing as much as possible at the press — using automation to remove parts and assemble them, two-shot molding, even assembling parts inside the mold. Now instead of a big inspection department, constantly pulling parts off the...
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The Pros and Cons of Cold vs. 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...
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