Use a thickness measuring instrument to measure the thickness of the tungsten layer (the thickness of the tungsten carbide layer is required to be 0.06-0.08)
Use a smoothness meter to measure the surface finish of the corrugated roll (surface finish requirements ≤ Ra0.4)
Use the Leeb hardness tester to measure the hardness (the hardness of the roll surface matrix is required to be above HRC57)
Corrugated Roller,Corrugated Paint Roller,Flute Corrugated Roller,Corrugated Machine Roller LLY PACK(foshan) Co.,Ltd. , https://www.llypack.com
This model is with automatic trimmer,automatic needle position automatic presser lifter,and other function.High production efficiency ,high quality sewing and in full accordance with the sewing data to achieve low-tension sewing System and awide range of sewing performance .Do not need to be re-treated after trimming off-line,prevents the sewing start prone,bird's nests and sew Line stains.Clean sewing the strong machine needle penetration force.Using CF card,low noise ,low vibration,low power consumption,economical and practical.
High-Speed 1-Needle Bar Tacking Sewing Machine