Used stainless steel set of powder hoppers by Powtech (Sweden). Top tank has diameter 1000 mm x 1200 mm length of straight side of wall and 480 mm of height of conic. Total volume of top tank is 1100 l. Tank has connection for pneumatic transport and air outlet. Bottom conical with central discharge outlet, with diameter 360 mm. Top tank is mounted on 3 lugs with tension cells. To the discharge there is mounted slide valve manufactured by WAM, operated pneumatically. Working diameter 360 mm. Bottom receiving tank has rectangular shape with conical bottom and central discharge outlet. Working volume 600 l. Tank is also equipped with level sensors. Tanks are mounted on stainless steel supporting frame. Controls not included.