The screen frame is the device used for the screening of the material by the experimental sieve.
Note when using the sieve frame:
1. Determine the standard sieve frame to be used according to the materials to be inspected and the corresponding standards.
2. Lay the standard screen frame from small to large, and stack it from bottom to top to the base of the screen frame.
3. Put the material to be inspected into the uppermost standard sieve frame, cover the standard sieve upper cover, adjust the height of the adjustment rod according to the total height of the standard sieve frame, and then press and clamp the standard sieve frame with the pressure plate and the lock nut (Note: The force on both sides should be consistent).