Vacuum packaging machineryis suitable for packing very fine and light products,such as: Minerals: Alumina, Talc powder, etc. Chemicals:Fluffy Carbon black , Pigments, Graphite powders, Silicon dioxide, Aluminum powder, Stearate, Kaolin clay, Light calcium carbonate, etc.Specifications : Diameter of filling spout:55mm-76mm Container type: Valve bag with internal self closing or external (tuck-in) valve Filled container weight: 12.5-25 kg Bag material: Paper, plastic, or woven polypropylene sacks Packing speed:1 - 4 BPM Bulk density of filled product: 0.04 - 0.3 ton/m3 Accuracy:+-0.2% - 0.4%, depending on the product bulk density, flow characteristics, and parcel size Electrical requirements: 220V/1PH/50Hz; 380V/3PH/50Hz Operating temperature: 2°C-45°C