Factory
Shandong Hanbang
manufacturer with 15 years of production historyExport regions: Southeast Asia, the Middle East, Africa, South America, etc.
Factory scale: 36,000 square meters factory, 30 production lines, annual inventory of 5,000 tons
Core advantages: Located in China’s metal processing industry base, offering the highest cost-performance ratio globally.
Two-roll mill production process
After pickling, the steel pipe billet enters the two-roll mill unit. Under the cooperation of a pair of co-rotating rolls and a mandrel, the billet is continuously rolled, achieving wall thickness reduction, outer diameter sizing, and inner wall smoothing. During the rolling process, the metal deforms uniformly and is under stable stress, ultimately resulting in precision steel pipes with high dimensional accuracy, uniform wall thickness, and good straightness. Subsequent processes include straightening, trimming, bundling, and packaging to meet finished product delivery standards.
Seamless Steel Pipe Piercing Mill Production Process
Solid round steel billets are uniformly heated in a furnace and then fed into the piercing mill. Under the combined action of the piercing mandrel, guide plates, and rolls, the solid steel billet is rotated, extruded, and pierced into a seamless steel pipe. The outer diameter is then controlled by the sizing mill to meet standard requirements. Ensuring uniform wall thickness, smooth inner hole, and high concentricity are key processes in seamless steel pipe production.
Packaging: Wooden crate packaging, double-layer waterproof woven bag packaging
Containers: 40-foot high cube (40HQ), loading capacity depends on product volume, up to 60 cubic meters
20-foot high cube (20HQ), capacity up to 27 tons.
