Specifications

Cord Bending Fatigue Tester

Test mechanism:

In the RTC-II Cord Bending Fatigue Tester, the cord samples are subjected to repeated bending at given load through 2 free rotating rollers simultaneously and repeatedly moving up and down.

For testing, select some samples to be tested at the same time: fix the cord samples to the clamp in order, then wrap the cord around the A and B rollers to be connected with the lower clamps (see the following figure for instruction). Then the test starts, the A and B rollers will repeatedly move up and down, and the cord is subjected to a repeated bending fatigue. Record the number of bending times for each cord when it breaks, and collect data from all cords, and round the results to the nearest number, which indicates the fatigue life of the cord sample. Alternatively, you can also measure the residual  strength value of unbroken cord after a certain amount of bending. and use this remaining strength as an indication of the fatigue resistance of the sample. 

                                           S-shape wrapping

Technical parameters:

Cord Bending Fatigue Tester