Guide On Choosing the Right Die Springs
Die springs are a sturdy kind of helical compression spring that features a rectangular cable, usually utilized with die sets. Here is what to weigh in when buying the right die springs:
Role: Nitrogen Vs. Mechanical Die Springs
When it comes to the role they play, die springs are characterized into two main categories: nitrogen gas and mechanical die springs.
The latter are coiled helically, and they function by holding and applying force mechanically by contracting and expanding. Additionally, they are an old-style spring type used in dies and have the same appearance as springs widely used in many other applications.
On the other hand, Nitrogen gas springs wield force through compressed Nitrogen placed in a cylinder and condensed by the piston. These die spring designs can yield immense force than their counterparts. Besides, they also include more safety features.
Nitrogen Gas Vs. Mechanical Die Springs
Here is what to consider when choosing between these two robust and highly functional die springs:
Cost
It is more affordable to purchase mechanical die springs than nitrogen gas springs.
Longevity
Nitrogen springs will serve for a significantly longer time than their counterparts, which decreases the overall cost over its lifespan.
Solidity
Mechanical die springs cannot exert as much force as nitrogen gas springs. This means to achieve the same results; you will need to invest in several mechanical springs.
Safety
If you are looking for die springs for complex dies or extreme conditions, it would be best to choose nitrogen gas springs, as they are more reliable and safer.
Material
Die springs are made of many materials including chrome vanadium, chrome silicone, oil-tempered steel and chrome & steel alloys.
If you want springs that are corrosion-resistant, choose die springs chrome layers. Chrome vanadium and chrome silicone are not popular since they are expensive, though they are significantly stronger than die springs made from other materials.
Generally, mechanical die springs are marked or coated using colored vinyl, to indicate the die springs’ working load. The work load needed will match the right die material. More robust materials like chrome vanadium are perfect for applications that need incredible accuracy, high temperatures, or less stress points.
Shape: Oval Vs. Round Vs. Rectangular Wire
Even though these springs are helical, there feature three different shapes if wires, from which die springs are made:
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Oval
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Round
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Rectangular
Rectangular cable die springs are built according to the ISO 10243 standard and can be found in metric and inch sizes. The rectangular cable yields more force than the rest, which is why they have higher load capacity.
All the same, because the cable is rectangular, the spring will twirl as it moves, leading to additional stress which could cause the spring’s failure.
As of the round cable springs, they are mostly utilized in the US and are more compact and ideal for light compression works. The round cable will endure stress impressively, but it can’t yield similar force as rectangular cable springs of similar dimensions.
Oval cable die springs have a design that’s ideal to deliver great compromise between rectangular wire’s load capacity and the round wire’s stress-resistance.
You should also consider the manufacturer. Here at GL Metal, we have a vast range of die springs, including the volar, round and rectangular wire die springs, and mechanical & nitrogen gas springs.
With over two decades of experience in this industry and a factory of over 10,000 square meters, you can rely on our experience to deliver quality die springs.
