Screw feeders from Brabender Technologie are single and twin screw bulk solids metering feeders, available as volumetric units or as gravimetric loss-in-weight feeders equipped with paddle-agitated flexible hoppers or rigid hoppers with stirring agitators. Brabender screw feeders are used in all bulk solids processing industries, e. g. in the plastics compounding and extrusion, chemical, pharmaceutical, cosmetics, food, pet food, detergent, construction material, ceramics and glass industries.