Wedge wire flat panels screens Wedge wire flat panel screens are manufactured by welding special profiled working wires to support wires at an angle of 90 degrees. A precise slot is achieved by applying modern welding technology on working wires and support wires. The result is a rigid screen construction capable of withstanding heavy loads with a great resistance. Innovative solutions of technology allow: to control quality of welding. to use various working wires. to design various slot sizes in one screen. to design various support wires in one screen and various distances between supports in one screen. to gain superior flatness of sieves (no corrugation of working wires between support wires).