Loose-coil/extension spring

  Loose-coil extension springs refer to springs where the coils are not tightly adjacent but have a certain gap between them.Compared to traditional close-coil extension springs, this design offers unique characteristics and application scenarios. The spring works by exerting a counteracting force when stretched or extended, utilizing the restoring tension force.

  Loose-coil extension springs are a type of spring known for their excellent elasticity and long travel, and they are widely used in many fields. If you need an extension spring with good flexibility and a long stroke, loose-coil extension springs are a great choice.


Loose-coil extension springs refer to springs where the coils are not tightly wound but have a certain gap between them.
Compared to traditional close-coil extension springs, this design offers unique characteristics and application scenarios. The spring works by exerting a counteracting force when stretched or extended, utilizing the restoring tension force.

Gap between coils:
This is the most noticeable feature of loose-coil extension springs. The gap allows relative sliding between coils under load, increasing the spring’s flexibility.

Longer travel:
Due to the gaps between coils, loose-coil springs can achieve a longer working stroke.

Loose-coil extension springs are a type of spring known for excellent elasticity and long travel, making them widely applicable in many fields. If you need an extension spring with good flexibility and long stroke, loose-coil extension springs are a great choice.