Product description: This tester is used to test the anti-cracking index in the thin leather and upper leather. First fixed specimens periphery by this device, and then make the ball rise up from the leathers inside by speed about 12mm per minute, When the leather suffered the strength of 80N, the value of rising height is the measured value of crack.

Technical date:
1, Sample fixed diameter: ∮45 ~ 50mm (using ∮45mm special punch knife).
2, Ball diameter: 20 ± 0.2mm
3, Test speed: 12 ± 2mm / min
4, Crack Height: 0.05 ~ 25mm.
5, Load capacity: 100KG.
6, Dimensions: 52 × 37 × 48cm.
7, Weight: 50kg.
8, Power: AC220V 50HZ

Attachments:
1, One Chinese instrument operating manual
2, The instrument warranty card
3, International CNAS third party laboratory instrument calibration report