According to the standard:The design of this instrument complies with testing standards such as QB/T 3812.7

Product Description:The leather cracking tester is mainly used to test the anti cracking index of shoe uppers, various thin leathers, and leather surfaces. The clamp frame of this device is used to fix the outer circumference of the sample, and then at a speed of 12mm per minute, the steel ball is pushed up from the inner surface of the leather. When the leather surface is subjected to a force of 800N, the height of the rise is the cracking value.

Experimental principle:A steel ball is pressed onto the center of the flesh surface of a circular leather test piece, and the edges of the test piece are fixed with fixtures. Record the required force and Shenzhen velocity when cracks and fractures occur on the grain surface.

Specification parameters of leather cracking testing machine:
Capacity 1000 N
Decomposition degree 1/50000
After fixing the sample, the diameter is Φ 25mm
Steel ball diameter: 6.25mm
Speed 12 ± 2mm/min
Scale range 0~20mm
Volume (W × D × H) 44 × 33 × 45 cm