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A welded pipe mill line is an integrated production system used to manufacture steel pipes and tubes through continuous forming and high-frequency welding processes. Widely applied in construction, oil & gas, automotive, and structural engineering industries, welded pipe mill lines are essential for producing high-quality steel tubes with consistent dimensions and strong weld integrity.
Modern welded pipe mill lines are designed for high efficiency, automation, and precision, enabling manufacturers to meet large-scale production demands while maintaining strict quality standards.
Shijiazhuang Faith Machinery Co., Ltd specializes in manufacturing advanced welded pipe mill lines for global markets.
Tel: +86 15350593960
Email: crystal@faith-machinery.com
A welded pipe mill line is a continuous system that transforms steel coils into round, square, or rectangular pipes by:
Uncoiling steel strips
Forming them into tubular shapes
Welding the seam using high-frequency technology
Sizing and cutting to required lengths
This process is commonly referred to as ERW (Electric Resistance Welding) pipe production.
A complete welded pipe mill line consists of several key machines working together:
Holds and feeds the steel coil into the production line.
Flattens the steel strip and prepares edges for welding.
Stores strip material to ensure continuous operation during coil changes.
Gradually shapes the flat strip into a round tube.
Uses electric resistance welding to join the edges.
Adjusts the pipe diameter and shape to precise specifications.
Cuts pipes to fixed lengths without stopping production.
Collects finished pipes for further processing or packaging.
The production process follows a continuous and automated workflow:
Steel coil is loaded onto the uncoiler
Strip passes through leveling and forming rollers
Edges are heated by high-frequency current
Pressure rolls weld the seam
Weld bead is trimmed
Pipe is sized and straightened
Flying saw cuts the pipe to required length
This process ensures high-speed production with consistent quality.
Produces circular pipes
Widely used in water, oil, and gas transportation
Converts round pipes into square or rectangular shapes
Used in construction and structural applications
Designed for thin-wall and small-diameter tubes
Suitable for automotive and furniture industries
Produces pipes for oil and gas pipelines
Meets strict international standards
| Parameter | Typical Range |
|---|---|
| Pipe Diameter | 20 mm – 219 mm (or customized) |
| Wall Thickness | 0.8 mm – 8 mm |
| Production Speed | 30 – 120 m/min |
| Material | Carbon steel, low alloy steel |
| Welding Type | High-frequency ERW |
| Length Cutting | 6 m / 12 m or custom |
Continuous operation enables large output with minimal downtime.
High-frequency welding ensures strong and uniform seams.
Capable of producing different pipe sizes and shapes.
Modern systems include PLC control for precision and consistency.
Lower material waste and high output reduce overall production cost.
Construction and structural frameworks
Oil and gas pipelines
Water supply systems
Automotive components
Furniture and mechanical tubing
Shijiazhuang Faith Machinery Co., Ltd provides tailored solutions based on customer requirements:
| Custom Option | Details |
|---|---|
| Pipe Size Range | Customized diameter and thickness |
| Mill Speed | Standard or high-speed lines |
| Automation Level | Semi-automatic or fully automatic |
| Output Capacity | Based on production needs |
| Layout Design | Factory layout optimization |
As a professional manufacturer of tube mill equipment, we provide reliable solutions for global customers.
Advanced ERW tube mill technology
Strong engineering and design team
Custom production line solutions
Stable international export experience
Installation and technical support
Competitive factory pricing
We support long-term partnerships with steel pipe manufacturers worldwide.
ERW pipes are welded from steel strips, while seamless pipes are formed without welding.
Mainly carbon steel and low alloy steel coils.
Yes, with roller adjustments and tooling changes.
Usually between 30–120 meters per minute depending on specifications.
Yes, full customization is supported based on project requirements.
Yes, technical guidance and installation services are available.
If you are looking for a welded pipe mill line, choosing a reliable manufacturer ensures stable production, precise output, and long-term operational efficiency.
Shijiazhuang Faith Machinery Co., Ltd provides complete ERW tube mill solutions for construction, energy, and industrial applications worldwide.
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