Definitive Ecology F series single extractor screw batch feeders are designed for dosing powders, granules and synthetic fibres. Available in both a volumetric version and a gravimetric version with electronic load cell weighing system, these batch feeders guarantee high precision and reliability. The batch feeders are used in various configurations in all industrial sectors, from food to chemicals, and in the AISI 316L stainless steel versions specifically designed for the pharmaceutical sector. Especially suitable for use with ultra-fine powders. Available also in a version for the food industry and in a version for ATEX zone applications.