-Specially designed upper cover that never deforms -All stainless steel upper and lower clamping rings -Motor base is integrally formed by hydraulic pressing -Entire machine surface and mirror finish polished to #300 grit -Supports up to 8 sieve layers -No noise or other mechanical movements -Prevents powder from spreading, liquids from splashing, and granules from bouncing -Supports mesh sizes from 3.5 mesh to 635 mesh -Equipped with an automatic timer (1–60 minutes)