The product uses SUS 304 Food grade stainless steel, Safe and healthy, away from the dangers of heavy metals.(Only the crushing chamber and cover are 304 stainless steel, the base and others are galvanized steel) Can crushed whole grains, herbs, minerals, food additives and other dry material. (You can crush with oily materials, such as: peanut, sesame, walnut) Scope: Pharmacies, hospitals, clinics, grains mill, family, and other research institutes.Voltage: 220V / 50-60HZ Rated power: 2000W Load power: 4200W Speed: 32,000 rev / minAvailable In Capacity: 150g-250g-500g-1000g-2500g-3500g-4500gCrushing fineness :60-350 meshRunning time: Max 8 minutesGrinding chamber material: Stainless Steel