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Shanghai DaiDo SP co.,ltd Quality Control

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When you use DAI spring, please observe the following instructions.


1. As illustrated in the drawing, use over 300,000 times condition will become the use around  solid length. Around the solid length, since the number of active coils will become gradually coherent, the spring constant will become higher, and as illustrated, the load characterisic rises and becomes high strees, which would cause damage to products. Please refrain from using over 300,000 times condition.


2. Use with any space wil give impact and cause damage to spring. Be sure to use with the initial deflection of 1mm or more.


3. When any foreign articles is caught in spring, such part will not work as number of active coils, and the number of active colis will substantially become reduced, which would cause higher spring constant and damage to spring. Also, the solid length will become longer.


4. Bad parallelism of mounted surface would cause twisting or damage to spring. Be sure to check the parallelism.


5. Use without spring guide would cause twisting or damage to spring. Be sure to ure spring guide such as outside diameter guide.


6. When the using environmental temperature becomes higher, substantilal function loss will occur. Be careful about using environmental temperature.

  • Standard:ISO/TS 16949:2009

    Number:Reg.-Nr. 313057 TS09

    Issue Date:2008-04-30

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Shanghai DaiDo SP co.,ltd

Contact Person: Ms. Suzy, Cao

Tel: 86-21-57747016-825

Fax: 86-21-57745228

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