Our accordion protective covers feature a tight and reasonable structure, noiseless operation, large travel distance, fast movement, and long service life. They are widely used on general machine tools, CNC machine tools, hydraulic machinery, and other equipment. Our accordion cover equipment can be made with steel support frames, wooden frames, PVC frames, cold-rolled sheet steel frames, and other options. Depending on the operating environment of the equipment, the internal structure of the accordion cover can include grooves, roller wheels, nylon sliding strips, sliding blocks, tension rods, tension springs, and nylon shafts.