A compression spring is a helical spring that provides a force as the spring is compressed. Compression springs have several types of shapes including conical, barrel, hourglass, and the most common type of all, cylindrical. Compression springs are available with or without a grind on the ends. A compression spring with a grind will stand more square than a spring without a grind. Springs with square, ground ends will have a lower solid height than a spring with no grind.

M & S Spring is a leading manufacturer of compression springs. We make purchasing springs simple by providing you with accurate design input while meeting your demands for quality, price, and delivery. This is accomplished by using our customized Customer Order Management System (COMS) software, design software, and manufacturing equipment.

Types of Compression Springs

M & S Spring Company manufactures all types of custom compression springs including barrel, conical, cylindrical, and hourglass designs. Design details and advantages of each type of compression spring are as follows:

Type Design Advantage
Barrel A barrel shaped compression spring is represented with the end coils being smaller than the center coils. Lower overall solid height than a compression spring. Produce more lateral stability or resistance to surging.
Conical A conical shaped spring has a tapered shape with the purpose of providing the ability for the coils to nest against each other allowing a shorter solid height. Increased spring rate. Produces more lateral stability or resistance to surging.
Cylindrical The shape of the cylindrical spring is characterized by having the same coil diameter throughout the entire length of the spring; end to end. Linear spring rate throughout length. Most common compression spring type among applications.
Hourglass An hourglass shaped compression spring has end coils that are larger than the center coils (concave); opposite of how a barrel spring is shaped. Lower overall solid height than a compression spring. Produce more lateral stability or resistance to surging.

Common Industries that Use Compression Springs

M & S Spring is ISO 9001:2015 and ITAR certified, and our company provides custom compression spring products to a wide range of industries including:

  • Aerospace
  • Automotive
  • Commercial Goods
  • Electronics
  • Industrial
  • Medical
  • Military

Common Applications for Compression Springs

Compression springs are found throughout many applications. Here are some common applications where compression springs are used:

  • Firearms
  • Pressure valves
  • Tools
  • Automotive components
  • Electronics
  • Major appliances
  • Toys
  • Ink pens
  • Electrical battery contacts
  • Food preparation equipment

Sizes Offered

M & S Spring manufactures a wide range of sizes from large diameter compression springs to extremely small compression springs. We can provide you with compression springs ranging in wire diameters from .007″ up to .750″. Many of our prototype and short run orders range within these sizes.

Compression Spring Materials

Spring steels most commonly used in our manufacturing process for compression springs are Oil Tempered, Chrome Silicone, Music, and Stainless Steel Wire, along with other precious metals such as Brass, Phosphor Bronze, and Beryllium Copper. Below details the common materials and grades that we work with, but if the material needed for your project isn’t listed, please feel free to fill out a quote today!

Round Wire

Material Grade Specification Request A Quote
High Carbon Spring Wire Music Wire ASTM A228
  Hard Drawn ASTM A227
  Oil Tempered ASTM A229
Alloy Steel Wire Chrome Silicon ASTM A401
  Chrome Silicon Valve ASTM A877
Stainless Steel Wire 302 ASTM A313 (AISI 302/304)
  304 ASTM A313 (AISI 302/304)
  316 ASTM A313 (AISI 316)
  17-7 PH ASTM A313 (631)
Non-Ferrous Alloy Wire Phosphor Bronze ASTM B159
  Beryllium Copper ASTM B197
  Brass ASTM B134
  Copper ASTM B152
High Temperature Alloy Wire Inconel 600 ASTM B166
  Inconel x750 AMS 5698, 5699
Special Purpose Alloys – Wire Elgiloy AMS 5833
Low Carbon Spring Wire Cold Rolled Steel (CRS) ASTM A510 / ASTM A853