The low thrust of fast feed operation is used to judge the pass/fail of the product.
The hydraulic cylinder thrust during fast feed operation is equivalent to that of an air cylinder, so products cannot be processed using fast feed operation alone.
The position and time at the completion of the fast feed operation are converted into signals to determine whether the parts are acceptable or not.
In addition, higher quality manufacturing is possible by determining whether the final product is acceptable or not based on the hydraulic pressure, position, thrust, etc. generated upon completion of a high thrust feed operation.