HG 140 Automatic Tube Mill for 140x140mm Square Pipe Production

This automatic tube mill is designed for high-quality production of welded steel pipes, including round, square, and deformed pipes. Featuring precision roll pass design, the production line ensures excellent machining quality and high assembly precision.

• Standards: Carbon steel, hot galvanized steel
• Material: Low carbon steel and low alloy constructional steel
• Mechanical properties: σb≤520Mpa, σs≤365MPa
• Strip Width: 110-540mm
• Strip Thickness: 1-5mm
• Inner Diameter of Coils: Φ508mm
• Outer Diameter of Coils: Φ1300～φ2000mm
• Coil Weight: ≤11T

• Pipe Diameter: Square pipe 70x70-140x140mm
• Thickness: 1-5mm
• Length: 6m
• Pipe-cutting Precision: 0-6mm
• Forming Speed: Max 160m/min for 2mm thickness

• Workshop: 95x12m, H＞5m (with crane)
• Power: Approx. 850KW 380V/60Hz/3phases
• Circulation Cooling Water: Flow 30+30 CBM, Pool Volume 40m³
• Compressed Air: Flow 5m³/min, Pressure 5-7kg/cm²
• Cables: All external cables to be supplied by buyer

Strip steel to coil → Uncoiler → End straightener → Flattener → Shear welder → Storage material unit → Forming, welding, cooling → Pipe diameter sizing → Pipe length sizing and cutting → Inspection → Packaging

Our technical personnel will provide on-site debugging, maintenance, and operational training after equipment arrival. The warranty covers 12 months from equipment arrival date. Under normal operation, we provide free repair or replacement for any quality-related parts failure.

Hebei Tengtian Welded Pipe Equipment Manufacturing Co., Ltd specializes in high-frequency welded pipe equipment, slitting lines, and cold bend steel equipment. With a skilled technical team, our products have been exported to South Korea, Vietnam, Indonesia, South Africa, Kazakhstan, and other countries, receiving high praise from domestic and international customers.