Screw jack guards, also known as screw jack sleeves, are a type of protective cover that effectively shields screws, light bars, shafts, columns, and other components from dust and other external contaminants and damage.

The products are categorized by manufacturing process into steel ring-supported and stitched styles. Shape options include cylindrical, tower, square, rectangular, oval, staircase, crescent, semi-circular, and more. Connection types include: (1) Both ends with collars (buckle style), (2) Both ends with flanges (screw style), and (3) One end with a flange and one end with a collar. Flanges are further divided into PVC flanges and metal flanges.

Steel ring supported

Multiple fabric options, supported by steel wire rings, made with high-frequency heat-sealed sleeves, with fixed outer diameter. Operates normally between -40℃ and 110℃. Provides effective dust, water, oil, emulsion, and chemical resistance. Features a neat appearance and resistance to deformation. Its tightness and rigidity make it suitable for ventilation and dust removal in various machinery. Available in custom diameters and lengths to meet specific customer requirements.

Sewn

Various materials are available depending on the working environment. They are first formed into discs through stamping and sewing. The two inner edges and two outer edges are stitched together, achieving good shape stability and firmness in the horizontal direction through the sewing process. Installation methods include whole, zipper, hook-and-loop, and snap styles, offering greater convenience for users' installation.

The component can be extended or compressed, suitable for both vertical and horizontal use. When in a horizontal position, plastic or aluminum support rings are used to maintain a uniform distance between the protective cover and the screw, thereby extending the service life. For larger stretch lengths, a metal ring is added to each fold to enhance the stability of the protective cover. Metal flanges are used for connections or fixed ends, or a sleeve-type option can be chosen.