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A steel tube making machine, often referred to as a tube mill, is a specialized system designed for the continuous manufacturing of steel tubes and pipes from coiled strip material . These machines are engineered to produce tubes of various cross-sectional profiles, including round, square, and rectangular, to meet diverse industrial demands . Shijiazhuang Faith Machinery Co., Ltd. integrates advanced technology and precision engineering in the design of these production lines.
The operational process begins with an uncoiler, which holds and feeds the steel coil into the system . The strip then passes through a leveling machine to remove any curvatures or deformities, ensuring a flat and uniform material enters the forming section. For continuous operation, the ends of consecutive coils are often sheared and welded together at a butt welding station, with an accumulator storing sufficient strip to maintain production during this joining process.
The heart of the machine is the forming section, where a series of precision-engineered rolls progressively shape the flat strip into a cylindrical or other desired tubular form . Following forming, the open-seamed tube enters the welding station. Here, the edges are heated and fused together, typically using High-Frequency (HF) or Electric Resistance Welding (ERW) techniques, to create a strong, longitudinal weld . Post-weld, scarfing tools remove internal and external flash to smooth the weld seam.
The welded tube then proceeds to the sizing section, where another set of calibrated rolls ensures the tube achieves its final precise dimensions and improved roundness . A flying cutoff saw subsequently cuts the continuous tube into predetermined lengths without stopping the production line . Finally, the cut tubes are conveyed via a run-out table for stacking, inspection, and packaging .
These machines find applications across numerous sectors, including construction for structural supports, the automotive industry for exhaust and frame components, and furniture manufacturing for frames and decorative elements . The design of Shijiazhuang Faith Machinery Co., Ltd.'s equipment focuses on production efficiency, dimensional consistency, and the flexibility to produce a wide range of tube specifications.
