GB/T 3903.40-2008, QB/T 2712-2005, ISO 17695, DIN 53325, BS 3144, SATRA TM24, QB 3812.7
Sensor Capacity: |
1000N |
Accuracy: |
±1% |
Unit: |
kg、N、LB |
Diameter of Specimen after Fixation: |
Ф25mm |
Test Speed: |
(12±3)mm/min |
Steel Ball Diameter: |
Ф(6.25±0.05)mm |
Electric Machinery: |
Three phase stepping motor |
Volume: |
44*33*48cm |
Weight: |
30kg |
Power: |
AC220V
50HZ |
A steel ball is pressed at the center of the meat surface of a round leather sample. And the periphery of the sample is fixed with a clamp. The maximum force and extension height were recorded when the grain surface was cracked.
Good quality leather must meet the following standard:
GB/T 3903.40-2008, QB/T 2712-2005, ISO 17695, DIN 53325, BS 3144, SATRA TM24, QB 3812.7
Use the leather cracking tester to test the crack resistance index of shoe uppers, various thin leathers and leather surfaces. The clamp frame of this device fixes the outer periphery 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 value raised is the crack value.