... ) No need for lubrication 3) No oil leakage SFJY series Rotary vibration sieveFunction and Characteristic: 1. High efficiency, compact design and ... reach five, it is recommended to use three.SFJY series rotary vibration sieve is a high precision powder screening machine, its low ... .2General Motors—0.751.11.51.52.22.23.0 Rotary vibration sieve