LSAW/DSAW 406~1422mm(16"~56") * 6~50mm

The JCOE production line for large-diameter, double-side, submerged-arc welded steel pipes (hereinafter referred to as JCOE Production Line) is equipped with YSD forming machine, which is of high forming precision and fast forming speed, evenly distributed stress and small residual stress; major equipment for pre-bending, etc is supplied by Tianshui Metalforming Machine Tool Co., Ltd.; the pre-welding is of large-power CO2 gas shielded welding and high-speed full-length pre-welding techniques; the internal and external welding equipment is Lincoln multiple wire DC/AC automatic submerged-arc welding machine, affiliated by automatic steel plate cutting torch, steel pipe straightener, steel pipe finishing machine, on-line manual UT examination for steel plate, etc. All these are warranties of advanced quality level in the steel pipe manufacturing process.

JCOE Pipe Manufacturing Process