This is bob from hengshui guangxing screens company.We are a manufacturer of rotary drum screen in china.Rotary drum screen cylinders are manufactured in various diameters from 1/2" pipe size to 36" diameter. Screen cylinders can be fabricated into much larger sizes. Each intersection of wedge wire and support rod is welded for strength and durability. Variou wedge wire and support rod combinations can be used to produce the best screen design.Wedge Wire screen cylinders can be designed with slot openings and wires running radially on the outside surface of the screen cylinder or they can be positioned axially on the inside of the cylinder.Rotary Screens typically use wedgewire for the screening media.The externally fed unit has a spiral wound wedgewire screen drum 36" OD x 120" long.Please tell us your demand and then we design ,manufacture for you.Yours faithfully bob.