Hardware Products Blog

Active vs. Total Coils: Are You Counting Coils Correctly?

Posted by Ted White on Aug 18, 2017 3:18PM

The Concept of Counting Coils on Different Types of Springs

Counting coils, especially the number of active coils versus the number of total coils, remains to be one of the most misinterpreted concepts of spring manufacturing. Despite being the simplest feature to measure, the process of counting coils has resulted in a surprising number of errors in drawings and in new product development.

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Topics: Counting Coils

Spring Rate 101 – A Simple Guide to Understanding Spring Rates

Posted by Ted White on May 30, 2017 1:1PM

Is There Such a Thing as a “Constant” Spring Rate?

If you’re in the business of buying springs, you are bound to deal with ‘spring rates’. The concept can be tricky to understand if you aren’t a physicist or a spring maker yourself. The force that a spring exerts is static as it stretches and compresses, and is a constant rate until its elastic limit is reached. This theory is called Hooke’s Law and we are going to break it down into simpler terms without transporting you back to a physics class.

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Topics: Spring Manufacturing

The Evolution of Spring Design

Posted by Ted White on May 2, 2017 2:54PM

When Was the Last Time You Heard Someone Say “Slide Rule”?

Spring design is often considered an elusive task even though springs are used in virtually every machine there is, and clips made of spring tempered wire are used in almost all computers and electronic cabinets. So what makes spring design so tricky?

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Topics: Spring Manufacturing, Spring Design

The Story Behind America’s Oldest and Best-Designed Stock Spring Line

Posted by Ted White on Apr 19, 2017 11:12AM

From Manure Spreaders to Rocket Ships – HPC’s Stock Springs are Everywhere!

Having recently celebrated our 150th anniversary, Hardware Products is one of the oldest spring companies in the country. We also have one of the oldest stock spring lines in the country that has often been lauded as the best-designed stock spring line in existence!

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Topics: Stock Springs

Why Are Hot Wound Springs Hard to Source

Posted by Ted White on Apr 12, 2017 12:42PM

Pro Tip: Avoid Made-to-Order and Switch to Hot Wound Stock Springs

Known as one of the most labor intensive spring manufacturing processes in the market, hot wound is a process used in manufacturing a spring by heating the steel, winding, and tempering it to the required properties. Hot wound springs can be hard to source depending on your order specifications, urgency, and budget constraints.

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Topics: Spring Manufacturing, Hot Wound Springs

The Problem with Ordering 10 Compression Springs from a Long-Run Spring House

Posted by Ted White on Feb 15, 2017 1:19PM

Hardware Products Company Is Your One-Stop Shop for Springs

Aside from the fact that a long-run spring house might refuse to take your order because they aren’t set up for the short run, there’s also the possibility that you will end up paying substantially more, and you might not receive your order in time. All because it’s simply not viable for most long-run spring houses to cater to short runs.

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Topics: Spring Manufacturing

The Use of Passivated Custom Springs in the Food Industry

Posted by Ted White on Nov 21, 2016 2:29PM

Passivation and Citric Acid Cleaning

Passivation is one of the more misunderstood functions of spring manufacturing. Passivation is a process: a spring (after it is formed) is cleaned, dropped in nitric acid, and then dropped in water. The process is intended to remove any of the contaminants picked up during the manufacturing process. This is especially required in custom springs that are manufactured to be used in the food industry.

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Topics: Spring Manufacturing

Electroplating Compression Springs

Posted by Ted White on Oct 28, 2016 12:28PM

Hydrogen Embrittlement and the Process of Electroplating Compression Springs

Very frequently – throughout different walks of life – we hear the term “it is plated.” When referring to jewelry, this usually means that it is not really gold but is made of some cheaper material and gold-plated to look like gold. Springs are very often plated for the same reason.

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Topics: Compression Springs

Compression Springs and Extension Springs Anniversary Special

Posted by Ted White on Aug 29, 2016 3:46PM

Springs for $150

Established in 1866, Hardware Products Company (HPC) has a long and storied history as one of the leading suppliers of stock and custom spring solutions in the industry. If you’re doing the math, that brings HPC’s tally to 150 years of continuous spring manufacturing, right here in the U.S. We wanted to extend our celebratory excitement to our customers, so we created a 150th Anniversary Special: Springs for $150.

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Compression Spring Design Evolution

Posted by Ted White on Jul 15, 2016 3:3PM

Compression Spring Parameters and Pi

Compression spring design formulas are really only somewhat complicated algebra. They are quite precise and yield very predictable results. However, when compression springs were first becoming widely used during the industrial revolution, neither computers nor calculators existed.

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Topics: Steel Spring Manufacturing, Compression Springs