The zipper fatigue tester is used for the reciprocating testing of various zippers by continuously testing back and forth. It aims to test the distance between zippers, loose or connector failure, nap, wear, etc.

The zipper fatigue testing machine was used to test the zipper's load pulling. Its principle is the tester of zipper under the action of transverse and longitudinal tension.To test if the zipper can bear the specified number of reciprocating pulling operations. During the test.The zipper's puller is driven at the programmable speed for 30 movements per minute up to the specified number of times.The reciprocating stroke is 75mm; The width of the transverse clamping device is 25mm, the total weight of the longitudinal clamping device is 0.28 ~ 0.34kg, and the distance between the two clamping devices is 6.35mm.

Standard：

CNS -1083 , BS 3084 , QB/T2171

Application：

This test method is suitable for all kinds of zippers.

Conditions：

Room temperature(23±2℃)

Size of sample：

One zipper(length≥200mm)

Parameter requirements：

  1. Speed：30times/min

  2. Stroke：75mm

  3. Angel of opening and closing：Opening 30°;Closing 60°;

Zipper Fatigue Tester Procedure：

  1. Switch on the power.Adjust the knob so that the tension clamp device is at a lower position, at the same time the lower indicator light is on.

  2. Select the appropriate thickness of the positioning plate to be fixed on the zipper pull head, and fix the zipper pull head under the pressure plate to lock and fix.

3.Firstly fixed the end of zipper(lower end) at point A of the upper clip. Then fixed the head of zipper at two longitudinal clip points D and E. of the upper clip

  4. Loosen the upper pincer slightly, pull the end of the zipper upward to make the vertical clamping device G horizontal line parallel to the horizontal plate, then lock the upper pincer A.

  5. Loosen the two transverse clips B and C, let the cloth tape at both sides of the zipper fit into B and C fixtures, clamping, and the clamping port is about 5mm from the tooth foot.

  6. Adjust the tension of Adjust the tension of the longitudinal and lateral spring balance separately according to the standard.

  7. Setting the test times and press the start button to start test。

  8. Remove the sample after the number of arrival stops automatically.Observe the degree of sample damage.