Henry Spring is the largest spring manufacturing company maintain its leading position in the domestic spring industry, the initial production of watches and clocks spring, famous for the quality and stability, both in the spring production technology and equipment are the highest domestic.。

  The torsion springs (torsion spring) is one of the widely used spring. Henry spring production of various specifications torsion springs (torsion spring) is well-known superior quality and stable. Henry spring HENRY (standing standard) torsion springs (torsion spring) and custom torsion springs (torsion spring) solution。

HENRYTension springs specifications tablePDF download and standard parameters

Material

	Instrument chord metal wire meets the ASTM-A228 or AMS 5112. When the temperature is higher than 121 degrees Celsius (250 Fahrenheit), does not recommend the use of musical instrument strings made ??of metal wire spring。
	The stainless steel model 302, in line with the ASTM-A313 or AMS, 5 688, the spring after tempering (only the physical and chemical processing) when the temperature higher than 260 degrees Celsius (500 Fahrenheit), do not recommend the use of musical instrument strings made ??of metal wire spring。
	Type 302 stainless steel is a little magnetic. There will be little residual nickel in the stainless steel surface, which is normal and will not affect product performance。
	Diameter is forming the diameter before。

Spiral direction

Left-handed helical or right-handed direction, depending on the direction of the operation of machinery layout。

The end

	Full bend ring. Upon request, but also provide a special end of。
	The initial tension T is for reference only; free length size L estimates。
	Stretched to a length L1, the maximum load P。.
	To measure the stainless steel load P, the elastic coefficient R, or the initial tension T, the value multiplied by 0.833. Determination other than L1, other than the length of the tensile load P *, will spring to stretch from the free length of the distance of this length (in inches) multiplied by the coefficient of elasticity R, plus the initial tension T。

Last layer of print

The final paint color of the final paint color of the standard normal metal wire. Coatings are available upon request. When you require special coating must be given sufficient additional time。

Tolerance

Load, P ± 10%
Coefficient of elasticity, R ± 10%
The location of the end of most of the parts processed into ± 22 degrees. If it is very important applications, please contact our engineering department。

Note: When out into the L1. Outside, the spring can be a fixed device。
*P = (Lx - L) x R + T
Lx = Load length of the need

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