EXTENSION SPRINGS

Our capabilities for extension springs range from 0.008” to over 0.375”. Helical extension springs store energy and exerts a pulling force. The initial tension will determine how tightly wound the spring is coiled. Initial tension is defined as the minimum force required to begin to separate coils. This force can also be adjusted to achieve your custom load requirements. The ends of extension springs can come in different configurations. The looped ends can be machine loops, cross-over center loops, double full loops, extended hooks and side hooks/loops. See the link for some pre-engineered extension spring designs. 



Materials

We use the highest grades of spring wire in our custom products. Carbon steels include material types such as music wire, basic, hard drawn and oil-tempered chrome silicon & vanadium. We work in a variety of stainless materials from 302 Stainless to 316 SS, 17-7 PH and even more exotic types such as Hastelloy, Inconel and Monel. Material Certifications can be furnished upon request.

Finishes

We partner with local finishing companies that have been approved to our quality standards. Some options we offer are zinc, nickel, silver, tin or gold electroplating, zinc plating with yellow chromate, passivation, black oxide, powder coating and color coding.

MADE IN THE USA


Pre-Engineered Designs

Industries &
Applications

Being a custom manufacturer the industries
we serve are limitless, but here are just a few:
  • Energy
  • Consumer Products
  • Agriculture/Lawn & Garden
  • Exercise/Sports Equipment
  • Handicap Equipment
  • Fastener Industry
  • Musical Instruments
  • Electronics
  • Fluid Handling
  • Office Equipment
  • Industrial Valves
  • Aircraft
  • Firearms
  • Hydraulics
  • Construction
  • Mining & Drilling
  • Food Packaging & Processing
  • Medical Equipment
  • Appliance
  • Defense/Military
  • …and more

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Fox Valley Spring Co, LLC • N915 Craftsmen Drive • Greenville, WI 54942 • 800-776-2645

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