Extension Springs with Different Shapes

Extension Springs with Different Shapes

Tension spring is helically coiled wires designed to provide an opposing force when stretched, also named tension springs. Extension coil springs are designed to absorb and store energy as well as create a resistance to a pulling force. The ends are usually formed in the shape of a hook or loop and can also be custom made.

Stainless tension springs are used primarily in manufacturing applications where a variable, opposing force is required between two components. Extension springs are used in many applications which assist our every-day life. In this article, we will tell you what goes into extension springs.

Extension Spring Specifications

Free length is the length of the extension spring at rest measured between the inner surface of the ends.
Wire diameter is the width of the wire used to make the coil.
Mean coil diameter is the total width of the spring at rest, minus the wire diameter.
 

Spring Ends

Extensions springs offer a variety of ending inserts, loops, hooks, and eyes to aid in their attachment. Common loop types are illustrated below.
 
 

Take the below products as examples 

 

Refrigerator Cooler Machinery Tension Coil Springs Stainless Steel Extension Springs

Parameter:

Material Wire diameter Outside diameter body length Direction Hardness
stainless steel  0.6mm 13mm 35mm Right HRC 35-38


Electric Generator Custom Extension Springs Color Zinc Coated ROHS ISO9001 Certification

Parameter:

Material Wire diameter Outside diameter body length Direction Hardness
Spring steel 65Mn 2.2mm 23mm 130mm Right HRC 38-40


Engine Return Expansion Springs Stainless Steel For Lawn Mower Garden Machine

Parameter:
Material Wire diameter Outside diameter body length Direction Hardness
Spring steel 302 0.5 mm 5 mm 30.5 mm Right HRC 35-38



Conclusion:
 
Extension springs are widely used in almost every manufacturing field, including trucking agriculture,automotive,oil&gas,miming,military,construction,outdoor,equipment, ,furnature,industry,power&hand,tools,electronics,railway,marine,telecommunications,engineering,robots and so on.

Xulong is a supplier in China, and we provide high quality industrial tension springs, such as small extension springs, brass extension springs, tension spring kit,  large tension springs, garage door extension springs.
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