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First spiral pipe produced at Schuler plant

September 12, 2017 - Experts predict that in North America alone, over 10,000 kilometers of new pipeline will be laid per year by 2020. And most of that will be spiral pipes. Tuberías Procarsa, one of the leading manufacturers of steel pipe in Latin America, is equipped for this trend: the company with headquarters in Monclova (Mexico) has put a spiral pipe plant from Schuler into operation and used it to produce large-diameter pipes.

The offline spiral pipe plant can produce large-diameter pipes with a diameter of 508 to 2,235 millimeters (20 to 88 inches) and a length of 12 to 24.4 meters. The raw material up to 25.4 millimeter-thick sheet metal band made of high-quality steel (up to X100) comes on a hot rolled coil (HRC). The spiral mill forms the diameter and welds the spiral pipe within the first step by tack welding.  In a further process, the final pipes will be weld by several final welding stands with a submerged arc welding process.

An innovation from Schuler is the integrated coil preparation stand. It ensures short changeover times, high occupational safety and an exact 90-degree cut of the beginning of the band.  A crane transfer is no longer necessary. All relevant work steps on the spiral mill are automated: settings are no longer made manually; instead, setting is done directly on the well-organized control panel and implemented by servo motors. This results in an energy savings of up to 30 percent and short changeover times.

At a length of 285 meters, the pipe plant also includes various equipment for inspecting the large-diameter pipes in accordance with the API 5L standard. Ultrasonics, X-rays and water pressure stands are used here. The production capacity of Tuberías Procarsa will be increased by 200,000 tons a year thanks to the Schuler system.

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