A UJ cross 4-spindle drilling machine is a type of machine tool that is used to create multiple holes in a workpiece simultaneously. The machine is equipped with four spindles, each of which is mounted on a U-shaped cross slide, which allows the spindles to move in a radial direction. The U-shape allows for the spindles to be positioned closer together, which can be useful for drilling holes in tight spaces or for drilling multiple holes in a single pass. The machine typically uses high-speed drilling heads, which are capable of drilling holes in different types of materials including alloy steels, stainless steels. The drilling heads are mounted on the spindles, which can be alinged to different positions to drilling heads with the workpiece. This allows the machine to drill Single hole in a single pass UJ cross 4-spindle drilling machine is commonly used in mass production environments, such as in the automotive, aerospace and electronic industries. They are well-suited for drilling large numbers of identical holes in a workpiece. The machine can be programmed to drill specific patterns of holes, which can be useful in the manufacturing of complex parts and components. In summary, UJ cross 4-spindle drilling machine is a specialized machine that uses four spindles mounted on a U-shaped cross slide, which allows the spindles to move in a radial direction. This design allows for the spindles to be positioned closer together, which can be useful for drilling holes in tight spaces or for drilling multiple holes in a single pass. The machine is typically used for mass production environments, such as in the automotive industries, and can be programmed to drill specific patterns of holes.