Global energy infrastructure is accelerating toward super-large-diameter transmission pipelines to boost fluid throughput, cut project costs and reduce land occupation. Yet most traditional 3LPE coating equipment can barely handle pipes above DN3000, creating a critical bottleneck for manufacturers undertaking national long-distance oil/gas mains, cross-basin water transfer and offshore pipeline projects.
Today, Qingdao Huashida Machinery Co., Ltd. proudly launches our flagship **Φ3620mm full-automatic 3LPE anti-corrosion production line** — a domestically certified First Set of Major Technical Equipment that breaks long-term foreign monopoly in ultra-large-diameter pipe coating machinery, supporting seamless mass production of SSAW/SAWH steel pipes up to outer diameter 3620mm.Customizable expansion to full 4200mm diameter production supported
