This machine uses automatic scraper movement to complete the operation of fineness scraper, thus avoiding the error caused by scraper operation among personnel and improving the reproducibility of judgment results.

It tests the pull-off of the coating in a specific area by hydraulic pressure, and the whole pull-off process is automatically completed by the instrument, so that the pull-off speed is stable and controllable, and the error caused by the unstable speed caused by manual pressure is avoided.