Your Products - Springs

Nickel Titanium Springs Extension (Closed Coil)

Extension, or Closed Coil, springs are used to maintain or close spaces. Ultimate offers extension springs in popular lengths with pre-attached Key-end^™ eyelets. Our Key-ends are attached firmly to the spring and are manufactured with smooth edges and round hole for easy attachment to TADs (Temporary Anchorage Devices), hooks, or brackets to retract teeth.

Our new Even Force Springs exhibit near-constant unloading forces throughout their return.

• These premium springs are available in both 9mm and 12mm lengths.
• Both lengths are available in 5 distinct force levels, with no overlap between tolerance bands.
• Near-constant force is maintained to 3x extension of active coil length without deformation!
• True progression of forces from Extra Light (XL) through Extra Heavy (XH).
• Secure key-ends with force level identification.
• Key-end attachment hole ID: .058" (1.47mm)

Even Force Springs 9mm and 12mm (both with Key-ends)

Spring Sizes and Identification of Forces

Even Force Springs

Force Wire size (in.)

9mm

12mm

Key-end ID (# holes)

Extra-light (XL) .007x.038

X

X

1

Light (L) .009x.038

X

X

2

Medium (M) .010x.038

X

X

3

Heavy (H) .011x.042

X

X

4

Extra-heavy (XH) .012x.042

X

X

5

Ten Even Force Springs are packaged, all one size and force, in clear plastic flip-top boxes. Sold in individual spring quantity (each).

Custom Packaging

See Custom Packaging section. Flip-top box labels are customizable with your name, product brand name, information, and lot and part number.

Force graphs of our premium Nickel Titanium Even Force Springs may be found in the Our Support section.

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As well as our Even Force Spring line, we also offer Nickel Titanium extension springs in both Variable and our original Superelastic forces. Variable extension springs provide gentle tooth-moving forces that gradually decrease during retraction. Our original Superelastic extension springs provide a flatter return slope of tooth-moving forces throughout their activation range than Variable, but not near as constant as Even Force Springs. Further explanation may be found in Spring Basics. Though our original Superelastic Extension springs provide extension without deformation, they do not compare with the resiliency exhibited by Even Force Springs at even greater extensions.

• Springs are made of premium Nickel Titanium wire.
• Provide retraction forces throughout activation.
• Securely attached, stainless steel Key-end eyelets for easy attachment.
• Recommended activation length of Variable and original Superelastic extension springs is only two times original spring length. Greater extension without deformation is available with Even Force Springs.

Extension Springs 6mm, 9mm, 12mm, 15mm lengths (all with Key-ends)
Spring Sizes
	With attached Key-end™ Eyelets
		6mm	9mm	12mm	15mm
Variable Force	.010 x .030	X	X	X	X
	.011 x .030	X	X	X	X
	.012 x .030	X	X	X	X
Original Superelastic Force	Super Light .009 x .030		X	X
	Light .010 x .030		X	X
	Medium .011 x .030		X	X
	Heavy .012 x .030		X	X
X Indicates available from stock.

Force graphs of our original Nickel Titanium Extension Springs are available to our customers upon request.

Our quality extends beyond our parts, with superior service and support.

Let's Form the Future!

Phone 860.582.9111, Toll-Free 800.999.6484 (USA & Canada)

 

 

 

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