| Meet the standard |
GB/T457、ISO5626、TAPPI T511、ASTM D2176
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| test principle |
Clamp the sample (140 * 15mm), fold it to break at a 135 ° double-fold angle and a rate of 175 times/minute, and record the logarithm of the number of double folds
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| folding angle |
Left and right (135 +/- 2) °
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Material yield bending angle is steplessly adjustable from 0 ° to 142 °
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| folding speed |
(175 +/- 10) times/minute
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Bending speed is adjustable from 10 times/min to 2000 times/min
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| Folding port specification |
Arc Radius: (0.38 +/- 0.02) mm Width: (19 +/- 1) mm
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| frictional resistance |
< 0.245N (under 9.81N conditions)
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| Folding head crack specification |
(0.25~ 0.50) mm, (0.50~ 0.75) mm (std.)
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| Tension adjustment Range |
4.91N~ 14.72N (every increase of 9.81N weight, spring compression deformation ≥ 17mm, tension change ≤ 0.343N)
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| control system |
Chinese measurement and control LCD screen (life is about 50,000 hours)
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| power supply |
AC 220V +/- 22V, 50Hz, 0.5A (requires reliable grounding)
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AC 220V，50Hz
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| Drive mode |
Stepper motor drive, smooth operation, low noise
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| Calibrating function |
Standard 9.81N (1kg) weight, spring tension can be calibrated at any time; Verification and Measurement calibrated during support
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| data processing |
Automatic test, data statistics, result memory, printout, automatic chuck reset
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