The protective cover effectively maintains the machining accuracy of machine tools.

The shield effectively prevents dust, chips, and hard sand particles from entering the track, reducing damage to the sliding track surface from hard, granular foreign objects. It minimizes the impact of guide rail deformation on processing accuracy due to operation, maintaining machine tool processing precision. The surface of the shield should be smooth without burrs and sharp edges, and should not pose a new hazard source. Additionally, the shield should not obstruct the line of sight or normal operation, and should facilitate equipment inspection and maintenance.