That all depends on your application. The most common types of springs are compression and extension.
You can visit our Custom Springs page to review the different kinds of springs and their applications!
Yes! Whether it’s duplicating a sample or first articles for a prototype, Leeco is prepared to help you with your spring project!
If you have an idea, we can help you to put it on paper with our state-of-the-art design software. We can make your custom spring order using common or hard to find materials and to your specifications.
Orders can be completed from design to delivery in as little as 24 hours!
All custom orders are individually quoted to ensure that you are given a fair deal on the springs you need!
We have an incredibly low minimum for custom orders. This means that we can keep the cost to you lower than other custom spring manufacturers!
The more detail you provide, the faster and more accurate your quote. For most springs, it helps to have:
- Wire diameter
- Outside or inside diameter
- Free length (compression) or overall length (extension)
- Number of coils and end type
- Material and finish
- Quantity needed
Don’t have all of it? A sample, a drawing, or even a rough sketch gives us a starting point. Our spring configuration guide walks through the key dimensions, and our design software can fill in the gaps.
The right material depends on your load, operating temperature, and environment; corrosion resistance, conductivity, and fatigue life all factor in. Common spring materials include:
- Music wire and hard-drawn carbon steel for general-purpose, cost-sensitive work
- Stainless steel (302, 316, 17-7) for corrosion resistance and medical applications
- Chrome silicon and chrome vanadium for high-stress, high-cycle use
- Inconel and other nickel alloys for high-temperature and oilfield environments
- Phosphor bronze and beryllium copper where electrical conductivity matters
We work with common and hard-to-find materials alike. For the full breakdown, see our spring materials guide, or tell us your application and we’ll recommend the best fit.
Fast. For many orders, Leeco can go from design to delivery in as little as 24 hours. Turnaround depends on quantity, material availability, and complexity, but quick-turnaround production is one of the main reasons engineers and buyers choose us.
Need custom springs on a tight deadline? Request a quote and tell us your timeline.
As previously mentioned, each part number is quoted on its own. We will offer price break incentives for any part we quote.
We are no stranger to high-quantity (+1M), production type jobs so please don’t hesitate to request a quote today!
Absolutely! This is all too common – springs that are overstressed will break or fail due to other environmental conditions in an otherwise functional piece of equipment. We are here for you! At Leeco, we can recreate your spring from pieces to production and get you back in business!
There are two common differences; the ends and the pitch.
On an extension spring, the end coils are typically turned perpendicular to the body to create either hooks or loops.
A compression spring will have either plain, closed or closed and ground ends.
The other main difference is that extension springs are tight wound; that is without spacing between the coils. While in service, an extension spring’s coils will begin to pull apart (or extend).
As with other types of springs, both extension and compression springs have limitless applications.
A torsion spring stores energy by twisting rather than compressing or stretching. Instead of pushing back along its length, it delivers a rotational (torque) force when its legs are rotated around the coil axis. You’ll find them in hinges, garage doors, clothespins, and any mechanism that needs to snap back to position after being turned.
If your application calls for rotational force, a torsion spring is likely what you need. If you’re not certain, send us your specs and we’ll confirm the right type for the job.
Yes. Beyond compression, extension, and torsion springs, Leeco produces custom wire forms: bent and shaped wire components like hooks, clips, brackets, rings, and formed assemblies. If your part starts as a length of wire and needs to be shaped to a spec, we can make it. Send a sample or a drawing and we’ll quote it.
Spring specs come with their own vocabulary, and getting the terms right keeps quoting and production accurate. A few of the basics:
- Pitch: the spacing between adjacent coils
- Free length: the length of a compression spring when no force is applied
- Solid height: the length when the spring is fully compressed and the coils touch
- Spring rate: how much force it takes to deflect the spring a given distance
For the full list, our glossary of spring terminology defines the terms you’ll see on any drawing or quote.
Springs go into almost everything, and our customers span a range of demanding fields, including:
- Oilfield and energy
- Medical and dental
- Aerospace and space engineering
- Military and government
- Electronics and technology
- Aviation
- Supply chain and transportation
From a single prototype to production runs over a million pieces, we manufacture custom compression springs, extension springs, torsion springs, and wire forms to the tolerances each industry demands.