Compression Springs

Compression Springs are open-coil helical springs wound or constructed to oppose compression along the axis of wind. Helical Compression is the most common metal spring configuration. These coil springs can work independently, though often assembled over a guide rod or fitted inside a hole. When you put a load on a compression coil spring, making it shorter, it pushes back against the load and tries to get back to its original length. Compression springs offer resistance to linear compressing forces (push), and are in fact one of the most efficient energy storage devices available.

The amount of energy stored in a compression spring is determined by the spring's material properties, wire diameter, and number of coils. The spring's rate, or stiffness, is determined by the wire diameter and the number of coils. The spring's rate is the change in force per unit change in length, and it is measured in pounds per inch or newtons per millimeter. The spring's rate can be adjusted by varying the wire diameter or the number of coils.

Compression Spring Applications
Compression Springs are found in a wide variety of applications ranging from automotive engines and large stamping presses to major appliances and lawn mowers to medical devices, cell phones, electronics and sensitive instrumentation devices. The most basic installation is anywhere requiring a push button. Conical type springs are generally used in applications requiring low solid height and increased resistance to surging.

Stock Compression Springs
Lee Spring stocks millions of compression springs, with thousands of unique design parameters. Lee Spring stock compression springs are available for same day shipment and can be purchased in low or large quantity. Lee Spring stock compression springs are in stock and ready to ship.

Lee Spring offers the following stock compression springs series:

Free Plating on all Music Wire Stock Springs
Free Grinding on all Standard Stock Compression Spring
Free Passivation on 302, 316, & 17-7 Stainless Steel Stock Springs
Certificate of Compliance on all Stock Springs and Custom Springs
Guaranteed RoHS Compliance on all Stock Springs

Stock Compression Spring Series
Bantam™ Mini Series
Free Length: 0.039" - 0.625"
Ends Not Ground

Instrument Series
Free Length: 0.039" - 2.087"
Ends Square, Not Ground

Lite Pressure™ Series
Free Length: 0.313" - 6"
Ends Square, Not Ground

Standard Series
Free Length: 0.173" - 11.417"
Squared, Ground Ends

Heavy Duty Series
Free Length: 0.875" - 6"
Squared, Ground Ends

High Pressure Series
Free Length: 0.250" - 4"
Squared, Ground Ends

DIN-Plus Series
DIN2098 Part 2- Free Length: 0.039" - 2.063"
Ends Square, Not Ground
DIN2098 Part 1: Free Length: 0.173" - 39.961"
Squared and Ground Ends

HEFTY™ Die Springs
Fit in Hole 0.375" - 2
Free Length

REDUX™ Wave Springs
Outside Diameter 0.210" - 1.707"
Free Height: 0.060" - 2"

LeeP™ Plastic Composite Series
Free Length: 0.375" - 1.25"
Available in 5 Colors - Coded Strengths

MIL SPEC MS24585
Free Length: 0.250" - 1.5"
Square and Ground

Custom Compression Springs
Lee Spring offers extensive custom compression spring capabilities and engineering support from design through production. Custom compression springs can be manufactured in a wide range of size and material options. Common compression spring materials include stainless steel, carbon steel, chrome silicon, and music wire.

Lee Spring offers advanced capabilities and a wide variety of options for custom compression spring manufacturing needs such as; advance quality control systems, regulatory expertise including RoHS, REACH and DFARS CAD assisted product design, in-house prototype production services and global supply chain network. Lee Spring is ISO 2015:9001 certified, REACH and RoHS compliant and ITAR Registered.

Lee Spring can manufacture custom compression springs in small or large quantities. Lee Spring can supply for short run R&D projects up to large, long run blanket orders that run over a period of years.

To learn more about material options – click here.
To learn more about coatings and surface treatment options – click here.

Custom Compression Spring Quotes
Request a custom compression spring quote today or contact a Lee Spring Engineering for design help or to answer any technical questions.

Compression Spring Supply - Global Flexibility
Lee Spring partners with your business to find solutions that meet your geographic requirements wherever your business takes you in the world. Lee Spring has locations locations around the world ready to assist. Develop prototypes with a Lee Spring Engineering in one part of the world and reduce long run shipping costs by producing parts close to where you need them in another part of the wor