Standard extension springs
The ends of a standard extension springs will link to different parts, and when an external force is applied, the parts will separate, and these springs will try to pull these parts back to their original position, which is why these springs are also called stretch coil springs.
Standard extension springs are usually fitted with hooks or rings at both ends so that they can be fixed to various devices, equipment and not added. Stretch springs are often considered an integral part of general purpose, door hardware, and kits, but they also play an important role in other applications, such as industrial, automotive, agricultural, electronics, and more.
The end types of standard extension springs are available in full ring and mechanism ring configurations, and the ring or hook may have a transverse center transition of the previous coil before forming a ring or hook.
Type of stretch spring
We are able to offer different types of mechanically stretched springs, including:
- Long stretch spring
- Heavy-duty tension spring
- Round wire stretching spring
- High performance tension spring
Standard extension springs are widely used in a variety of industrial, workplace and home environments, in addition to common doors and trampolines, in a variety of other panel and clamtop components, in a variety of electrical equipment and white goods, and in a variety of applications where one or more components require tensioning support to offset weight or other tension.
Stretching spring for window screen
- Most home Windows and door screens, once released, usually “bounce” back to their original position, a large part of which is achieved through the use of stretch springs.
- The standard extension springs of window screens are usually located above or to the side of the screen itself, so no additional space is required to install them, which makes them quick and easy to add to almost any window and door hardware kit.
Garage door stretch spring
- Garage doors are often paired with standard extension springs to help heavy doors open and close more smoothly, while reducing the support and lift required by the operator. The tension in the spring counteracts the weight of the garage door as it moves down into place, trying to pull it back, thereby preventing it from falling into place too quickly or too heavily.
Guitar tension spring
- Electric guitars usually have a vibrato or vibratory feature, and the player is able to quickly change the pitch of a note by applying downward force to a lever arm on the instrument. The tension on these springs must be balanced with the tension and specifications of the guitar strings, which will constantly try to pull the instrument’s bridge in the opposite direction.
Pool cover tension spring
- The pool cover tension springs work much like those on a trampoline, in that the standard extension springs located on the edge of the pool safety cover can be stretched inwards, allowing the cover to be pushed down some distance while attempting to drag it back into place.
- Unlike trampolines, they are not tensioning to provide excessive bounce, but to be able to put extra weight on the pool cover. Whether due to pool water, precipitation or objects/people falling on it, the cover or its support band will not immediately break or sink below the surface.
Sofa bed stretch spring
- Sofabed and other types of folding furniture often come with stretch springs to help support heavier parts and make it more honor for customers to install and fold them.
- The stretch spring works in a similar way to the way a garage door works, and when the sofa bed is fully open, the spring will be nearly fully extended, trying to pull the open part of the bed back into the folded position.
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