The bottom frame of the rotary vibrating screen is an essential part of the screen, mainly used for sealing, collecting materials, and discharging materials to prevent dust from overflowing, protect materials from pollution, and ensure that work is carried out under sealed conditions; Collect the undersized material from a fine sieve and discharge it from the discharge port to prevent dust from entering the vibration motor or exciter. The bottom frame material of the rotary vibrating screen of Dayu brand mainly includes two types: stainless steel and ordinary carbon steel. Special designs can also be made according to user needs.