Solutions

Flat—Pull With Intensive Force
Mount a zipper on the testing clamp, align the zipper tooth foot with the clamp mouth and keep them close to each other. The measured value is lateral strength.

Flat—Pull With Intensive Force
Mount the divider on the upper and lower clamps, with the clamp edges aligned with the internal end of the box retainer. and the clamp mouth kept close to the pin and box retainer. The measured value is open—end lateral strength.

Lower Stopper Flat—Pull With Intensive Force
Mount the zipper with a bottom stop on the upper and lower damps, with the clamp end face aligned with the bottom stop internal surface, and the clamp mouth kept dose to the bottom stop. The measured value is bottom stop lateral strength.

Single Teeth Shift With Intensive Force
Remove two teeth in a single—sided chain from the cutting place, with the third tooth remaining and mounted onto the lower clamp. The measured value is the single—tooth displacement strength.

Zipper Slider Self With Intensive Force
Pull the slider to the middle, and the two beads are respectively clamped on the upper and lower clamps. The measured value is slider self—locking strength.

Jack Shift With Intensive Force
Secure one end of the box retainer on the damp mouth of the upper clamp, with the other end clamped on the lower clamp. The measured value is box retainer displacement strength.

Zipper Slider Combine With Intensive Force
Mount the head of slider on the lower clamp, and mount the puller on the upper clamp. The measured value is slider and puller strength.

Lower Stopper With Intensive Force
Pull the slider (For the self—locking slider, its self—locking function shall be first deactivated.) to the bottom top, and the two beads are respectively clamped on the upper and lower clamps. The measured value is bottom top strength.

Bending Pull With Intensive Force
Double up a zipper and mount it on the upper and lower clamps with vertical alignment, align the zipper tooth foot with the clamp mouth and keep them close to each other. Leave 0.5—1 mm on the folding end face. The measured value is folded lateral strength.