200KN 300KN 400KN500KN 600KN Pressing Fatige Testing Machine for Leaf Spring
GB/T19844-2005 leaf spring used in automobile
5.5.2 stiffness testing, continuous loading and unloading with confirmation loading, recording deformation at the same time, and loading gradually, testing point should be equal or more than 7, stoping when loading up to 1.5 times.
5.6 vertical loading fatige testing, pulsing fatige testing carried out by certain amplitude after pre-deformation, stree amplitude up to 323.62Mpa(3300kgf/cm²) and maximum loading up to 833.5Mpa(8500kgf/ cm²), fatige life of leaf spring is equal or more than 80000 times. Inspecting test-piece every 10000 times, inspecting every 500 times after check out crack. Recording Life of sample after test-piece cracked.
Compatible machine type:
Electronic pressing testing machine for spring
Mechanical pressing testing machine for spring
Hydraulic pressure testing machine for spring
Hydraulic pressure fatige testing machine for spring
Static fatige testing machine