NACE Horizontal Screens are high-efficiency screens, also referred to as the Vibration-Control screen group, where each screen has a 3-shaft drive system having 6 bearings lubricated with liquid oil. Their capacities are high, returning loads are low. They make an oval vibration by means of three-shaft drive systems. This oval vibration prevents clogging in the screen meshes. The oval stroke is controlled easily by means of the axis angle and size.