In the global steel industry, ERW tube mills (Electric Resistance Welded tube mills) are the backbone of efficient, high-quality steel pipe production. These advanced machines transform steel coils into seamless, precision-welded tubes used in construction, oil & gas, automotive, and infrastructure projects. As a leading ERW tube mill manufacturer in China, SRET Co. has earned a reputation for engineering cutting-edge ERW tube mill lines and tube mill machines that deliver unmatched performance, reliability, and productivity.
ERW tube mill utilizes high-frequency current to heat and weld steel strips into tubes, offering advantages like fast production speeds, consistent weld quality, and versatility in tube sizes (from 1/2 inch to 24 inches in diameter). A complete ERW tube mill line integrates decoiling, forming, welding, sizing, and cutting processes, automating the transformation of raw materials into finished pipes.
With decades of expertise in metal forming and welding technology, SRET designs and manufactures ERW tube mill line tailored to diverse production needs. The company’s state-of-the-art facilities and R&D capabilities ensure its machines meet global standards, serving clients in over 30 countries.
SRET offers a comprehensive range of ERW tube mill solutions, from standard models to custom-engineered lines:
– Complete Turnkey Systems: Integrated lines including decoiler, strip leveling machine, forming stands, high-frequency welding unit, cooling system, sizing mill, flying cut-off machine, and end-finishing equipment. Capable of producing pipes with diameters from 16mm to 610mm and wall thicknesses from 0.8mm to 20mm.
– High-Speed Models: Designed for mass production, with speeds up to 120 meters per minute (depending on tube size), ideal for large-scale steel pipe manufacturers.
– Forming Stands: Precision-engineered roll tooling to shape steel strips into cylindrical forms, with adjustable pass designs for multi-size production.
– High-Frequency Welders: Equipped with solid-state HF generators (400-600kHz) for clean, strong welds, minimizing heat-affected zones (HAZ) and ensuring pipe integrity.
– Sizing & Straightening Machines: Calibrating tubes to exact dimensions and straightness, with options for online ultrasonic testing (UT) and eddy current inspection (EC) for quality control.
– Flying Cut-Off Machines: High-speed circular saws or plasma cutters for precise, burr-free tube cutting, synchronized with production speed to minimize material waste.
SRET Co. specializes in custom ERW tube mill line for unique requirements, such as:
– Small-Diameter ERW Mills: For producing precision tubes used in automotive fuel lines or medical devices.
– Thick-Wall ERW Mills: For heavy-duty applications like oil country tubular goods (OCTG) or structural pipes.
– Stainless Steel ERW Mills: Equipped with specialized welding and cooling systems to handle corrosion-resistant alloys.
– Advanced Technology: SRET’s ERW tube mill machine features servo-driven controls, PLC automation, and HMI touchscreens for precise parameter adjustment and real-time production monitoring. The use of German Siemens motors and Japanese Mitsubishi inverters ensures stable performance and low maintenance.
– Superior Weld Quality: proprietary welding processes and HF generators deliver uniform, defect-free welds that meet API 5L, ASTM A53, and DIN 2448 standards. Online NDT (Non-Destructive Testing) systems further ensure weld integrity.
– High Productivity: Optimized line layouts and fast changeover capabilities reduce downtime, allowing manufacturers to switch between tube sizes in minutes. Energy-efficient designs lower operational costs.
– Durable Construction: Heavy-duty frames, hardened steel rolls, and wear-resistant components ensure long service life, even in continuous 24/7 operation.
SRET’s ERW tube mill lines produce pipes for critical sectors:
– Construction: Structural tubes for buildings, bridges, and scaffolding.
– Oil & Gas: Seamless ERW pipes for pipelines and drilling equipment.
– Automotive: Precision tubes for exhaust systems, fuel lines, and chassis components.
– Infrastructure: Water/gas transmission pipes and drainage tubes.
As a trusted ERW tube mill manufacturer, SRET Co. combines Chinese manufacturing expertise with global innovation. From standard tube mill lines to custom ERW tube mill machine, the company delivers turnkey solutions that maximize productivity, ensure quality, and reduce total cost of ownership. With a dedicated after-sales team providing installation, training, and technical support, SRET is the ideal partner for businesses aiming to scale their steel pipe production.
