ROTARY FEEDERS Classique range   D R A According to your choice, this machine will be in turn rotary valve, airlock or balance. It fits all kind of applications : extraction under cells, gravitary flow or "au fil de l'eau", pneumatic conveying introduction (vacuum or pressure)... Basique range   D R E This machine will be in turn rotary valve, airlock or balance. And its best application will be in dust extraction. Which industry has never had to solve a problem due to the dust ? All are concerned ! Of course, everyone will be able to find others applications for this basic range, because its use possibilities are very vast thanks to its conception. Granuvac range   D R F O This machine is specially conceived for industries using vacuum dust collectors like filters or cyclons. Fréquence range   D R I A machine specially conceived for users who must clean their machine frequently. Plastics industry, chimicals industry, or food industry will find a particular interest at the time of products change (color or others caracteristics) on a same line of pneumatic conveying. Performance range   D R B Among the A7 feeders range, this rotary feeder is distinguished specially by its robust conception : separated bearings and packing gland. Ventillation range   D R C In the A7 rotary feeder range, there is a place for the machines said "chaudronnés" (thin mecanowelded steel layer). Their principal qualities are simplified construction with flanged bearings and very reduce weigh. Special ranges   D R Besides its adaptable standard machines range, A7 Constructeur proposes : a machine, YOUR MACHINE... Whatever the industry, the setting up or the operating conditions, the machine perfectly designed for your application case exists. Send us your specifications sheet.