This instrument is suitable for testing the repeated flexural damage resistance of coated fabrics, and provides a reference for improving fabrics. DRK516B fabric flexing tester is suitable for testing the repeated flexing damage resistance of coated fabrics, and provides a reference for improving fabrics. Compliance with standards: BS 3424 P9, ISO7854 and GB/T12586, etc. Test principle: Place a rectangular strip of coated fabric around two opposed cylinders so that the sample is cylindrical. One of the cylinders reciprocates along its axis to alternately compress and relax the coated fabric tube, thereby causing folds on the sample. This folding of the coated fabric tube continues until a predetermined number of cycles or significant failure of the sample occurs. Technical parameter: 1. Test station: 10 groups 2. Rotation speed: 8.3Hz±0.4Hz (498±24r/min) 3. Cylinder: outer diameter 25.4mm±0.1mm 4. Test track: arc R460mm 5. Test stroke: 11.7mm±0.35mm 6. Clamp: width 10mm±1mm 7.Inside distance of clamp: 36mm±1mm 8.Sample size: 50mmx105mm 9. Number of samples: 6 pieces, 3 pieces each in the warp and weft directions 10.Volume (WxDxH): 43x55x37cm 11.Weight (approximately): ≈60Kg 12. Power: 1∮ AC 220V 50Hz 3A