Welcome! Introduction VDS Concepts was founded in 1987 as a metal-using firm, specialising in machine building, die-casting and after sales service. VDS Concepts offers services such as repair work to mechanically driven machines. Among our specialities, right from the outset, was the maintenance of rotary valves for pneumatic transport of bulk goods. Drawing on the experience, we developed our own range of blowing seals to a very high technical specification. Our maintenance team stand surety for a personal treatment.