SFJY series rotary screener 1) Non gear driven variable speed case 2) No need for lubrication 3) No oil leakage SFJY series Rotary vibration sieveFunction and Characteristic: 1. High efficiency, compact design and durable, no powder, mucus can be screening. 2. Changer is easy, simple, easy to clean. 3. Mesh does not block, powder is not flying, may be screened to 500 mesh or 0.028mm. 4. ...