What is the tolerance accuracy of Cheng Yan automatic thread cutting, winding machine and binding machine for rice cutting?

Cheng Yan automatic thread cutting, winding and binding machine has a tolerance accuracy of 2mm per meter. The low-end machine is 5 mm per meter, and the simple version roughly calculates the cutting length according to the number of windings. The tolerance accuracy is closely related to the meter structure of the meter wheel, and the matching pay-off machine will also affect the tolerance accuracy. Tolerances are also cumulative.