how to test vibration springs in china spring factory

how to test vibration springs in china spring factory

An old friend and regular client from vibration and china spring vibration isolators industry wants to design a new series of vibration springs for their new project, and  their technical department raised a claim that the springs’ free length can not be decreased after compressing to its solid length, it’s really a challenge for us, but with hard working and great cooperation with their department, a series of vibration springs were figured out, to authenticate the design data, we choose two models of these vibration springs to make samples and  to do testing.
After samples were made out, we did the testing as planned, and the results came great, that means, two models of springs’s free length decreased by 0mm after compressing to their solid length.

Model one vibration spring

Spring specification:12*127*248*6.4
Material: alloy steel
Surface treatment: purple coating
Spring end: close and ground
Spring direction:right
Load requirement: F1=89mm, P1=2695±215N
                              F2=102mm, P2=3087±247N
                              F3=114mm, P3=3459±276N
and we did the particular testing under max deflection 114mm to check it will be shorten, as the stress is 882Mpa with deflection 114mm.
the testing result are great with detail report as follow:
vibartion spring testing report from china spring factory

and testing video of Model One vibration spring:
how to test vibration springs in china spring factory
 

Model two vibration spring

Spring specification:9*123*243*7.7
Material: alloy steel
Surface treatment: yellolw coating
Spring end: close and ground
Spring direction:right
Load requirement: F1=89mm, P1=676±54N
                              F2=102mm, P2=774±62N
                              F3=115mm, P3=882±70N
and we did the particular testing under max deflection 115mm to check it will be shorten, the stress is 623Mpa with deflection 115mm and it’s much easier for us to meet the target.
the testing result are great with detail report as follow:
vibration spring testing in china spring factory

And the testing video of model Two spring-china spring factory
 

Finally,we are glad that the results of vibration spring testings come out great and meet the designing purpose,and more important,we don't fail our old friend.