Tube Mill
Great Wall designs and manufactures custom tube mill machines for continuous welded steel pipe production. Our tube mill range includes ERW tube mill lines, FFX flexible forming mills, direct square forming lines, large-diameter thin-wall pipe mills and small-diameter thick-wall pipe mills. Each production line can be configured according to the required pipe shape, diameter, wall thickness, material, output and automation level.
Each tube mill line can be configured according to the required pipe shape, outside diameter, wall thickness, steel grade, production speed and automation level. Complete solutions are available from coil handling and strip preparation to forming, high-frequency welding, sizing, cutting, inspection and automatic packing.
Whether you are building a new welded pipe factory, expanding production capacity or replacing an existing line, our engineering team can recommend a suitable tube mill machine based on your finished pipe specifications and workshop conditions.
ERW Tube Mill Lines – High-efficiency production for standard welded steel pipes.
FFX Technology Tube Mill Line – Advanced automation for precision and productivity.
Direct Square Forming Tube Mill – Efficient square and rectangular pipe manufacturing.
Large-Diameter Thin-Walled Steel Pipe Mill Line – Optimized for lightweight, large-diameter pipes.
Small-Diameter Thick-Walled Steel Pipe Mill Line – Designed for robust, heavy-duty applications.
| Tube Mill Type | Main Application | Suitable Buyers |
| ERW Tube Mill Line | Round, square, rectangular and special-shaped welded tubes | General welded pipe manufacturers |
| FFX Technology Tube Mill Line | Flexible round pipe production with faster size changeover | Factories producing multiple pipe specifications |
| Direct Square Forming Tube Mill | Square and rectangular tube production | Manufacturers focused on structural square tubes |
| Large-Diameter Thin-Walled Steel Pipe Mill Line | Lightweight large-diameter welded pipes | Construction, infrastructure and industrial pipe producers |
| Small-Diameter Thick-Walled Steel Pipe Mill Line | High-strength small-diameter thick-wall pipes | Machinery, oil & gas, hydraulic and structural applications |
The actual technical range depends on the selected model and production requirements. Great Wall tube mill machines can be engineered within the following general product scope:
| Item | Available Options |
| Finished pipe shapes | Round, square, rectangular and selected special shapes |
| Main forming methods | Conventional ERW forming, FFX forming and direct square forming |
| Raw materials | Carbon steel, galvanized steel and applicable low-alloy steel |
| Welding method | High-frequency induction welding |
| Cutting options | Hot flying saw or CNC cold flying saw |
| Control system | PLC and HMI control |
| Line configuration | Semi-automatic or highly automated |
| Pipe size range | Selected according to the required tube mill model |
| Wall thickness | Customized according to pipe diameter and steel grade |
| Finished pipe length | Adjustable according to cutting system |
| Packing | Manual, semi-automatic or automatic packing |
| Installation | Complete line layout and commissioning support available |
All technical parameters should be confirmed according to the buyer’s pipe specification sheet, raw material condition and required production capacity.
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ERW Tube Mill Lines: HG20-HG610
The ERW20 series high frequency welded pipe unit adopts the roller forming principle to continuously produce straight seam welded pipes. It adopts high frequency induction welding and can produce not only round pipes, but also square and rectangular pipes and special-shaped pipes that do not exceed the processing range of round pipes.
The ERW Tube Mill Line is a continuous, automated industrial system used to produce Electric Resistance Welded (ERW) steel tubes and pipes. The line forms steel strip into a tubular shape and joins the edges using High-Frequency Induction Welding (HFIW) technology. This process ensures efficient, precise, and high-speed tube production, capable of manufacturing round, square, rectangular, and special-shaped tubes within the forming range.
This equipment is supplied by Great Wall. Great Wall’s ERW Tube Mill machines are renowned for their high-precision forming, stable high-frequency welding performance, and fully automated operation. erw pipe making machines are widely used in industries such as construction, furniture, automotive manufacturing, and fluid transportation, providing customers with reliable and efficient tube production solutions.
Wide Range & Flexibility – Produces round, square, rectangular, and special-shaped tubes from φ12mm–φ610mm, suitable for various thicknesses and industries.
High Efficiency – Production speed up to 120 m/min with stable high-frequency welding, ensuring fast and continuous operation.
High Precision & Quality – Advanced roller forming and HF welding deliver accurate dimensions and smooth, strong welds.
Durable & Energy-Saving – Robust structure with optimized power configuration ensures long life and stable performance.
Automation & Easy Operation – Intelligent control systems and optional quick-change setups enhance productivity and convenience.
| Feature | ERW Tube Mill Machine | Seamless Pipe Mill | Stainless Steel Pipe Mill |
|---|---|---|---|
| Forming Method | High-frequency welding | Hot-rolled or drawn | TIG or laser welding |
| Production Cost | Low | Medium | High |
| Material Suitability | Carbon steel, SS | Carbon steel | Stainless steel only |
| Automation Level | High | Medium | High |
| Application Range | Wide | Medium | Narrow |
Contact your professional HG20-HG610 Welded Pipe Mill Line manufacturer
The FFX Technology Tube Mill Line incorporates the internationally advanced FFX forming process, which offers a range of advantages including stable forming, excellent surface quality of steel tubes, and easy to change specifications. This FFX forming machine is divided into two sections: rough forming and fine forming. The rolls in the rough forming section can accommodate various specifications of steel tubes, reducing the number of rolls required by 30% to 60% compared to conventional roll forming units. This not only saves on roll inventory but also minimizes roll changeover and adjustment time, significantly enhancing production efficiency. Additionally, the use of segmented rolls instead of integral rolls reduces the need for spare parts storage.
The FFX (Flexible Forming and expanding) pipe making machine is an advanced tube forming system that utilizes a single set of universal forming rolls to produce different pipe sizes without roll changing. industrial pipe making machine significantly improves production efficiency, reduces downtime, and enhances dimensional accuracy.
Uncoiling & Shearing
Steel coils are uncoiled and cut into strips with the required width.
Strip Entry & Welding Preparation
The strip passes through a shear and end welder, then enters the accumulator or loop bridge for continuous feeding.
Flexible Forming (FFX System)
The strip is gradually formed into a round tube by universal shared rolls, not fixed per size.
Roll stands automatically adjust position via servo motors or hydraulic controls to match the desired pipe diameter.
High-Frequency Welding (ERW)
The edges of the formed tube are heated by high-frequency induction and pressed together to form a solid longitudinal weld seam.
Weld Seam Scarfing & Cooling
Internal and external weld beads are removed. The tube is then air or water cooled.
Sizing and Straightening
The tube enters a series of sizing stands to achieve final outer diameter and roundness. Straightening follows.
Cutting to Length
A flying saw or cold saw cuts the pipe to the required length without stopping the line.
Output & Stacking
Finished pipes are conveyed to a run-out table and bundled for packaging.
| Feature | Description |
|---|---|
| No Roll Change Required | A single roll set forms multiple pipe sizes, minimizing downtime. |
| CNC Servo Adjustment | Fully automatic, recipe-based setup for fast size changes. |
| High Dimensional Accuracy | Consistent forming force and better roundness control. |
| Material Savings | Reduced strip edge trimming and improved yield. |
| High-Speed Production | Up to 120m/min depending on pipe size and model. |
Direct Square Forming Tube Mill: LW120-LW2000
Cold bending profile steel and square/rectangular pipe line is the equipment used for production of open-mouthed and close-mouthed profile steel. With combined type of rollers, and multi points pre-bending forming technology, rollers can be changed quickly with no necessary to remove main axis or stands. Further, with the low loading, it can reduce 80% of rollers cost and 90% of time for changing rollers. All specified open or close mouthed profile steel can be produced with one set of combined rollers. lt is suitable for multi-specification small batch production and meet the market requirement as well.
DFT tube mill is an industrial production line used to manufacture square or rectangular steel pipes directly from steel strips through continuous roll forming, high-frequency welding, sizing, and straightening processes. Compared to traditional round-to-square forming, direct square forming improves precision and material utilization. As a professional square tube mill line supplier, Great Wall offers a complete range of high-performance tube mill equipment for square and rectangular tubes.
The process begins with steel coil uncoiling, followed by leveling and shearing. The strip is then fed into the forming section where rolls progressively shape it into square or rectangular forms. High-frequency induction welding bonds the edges, after which the welded tube undergoes sizing, straightening, cutting, and stacking. Great Wall’s square tube mill lines feature solid-state HF welding, CNC control systems, and automatic adjustment modules to ensure stability and consistency across production runs.
Square and rectangular steel tubes produced by Great Wall square tube mill lines are widely used in:
Steel structure construction (e.g., warehouses, stadiums)
Guardrails and fencing
Mechanical structures and frames
Automotive chassis and components
Solar mounting structures
Agricultural machinery
In-house CNC machining, roll forming, and assembly lines
ISO 9001 certified, CE-compliant manufacturing process
Pre-shipment full trial assembly & performance testing
Turnkey service: layout design, training, and after-sales support
Fast spare parts supply & global technical assistance
1,000+ projects delivered across 25+ countries
Great Wall ensures stable performance, fast delivery, and full engineering support for every square tube mill line.
Large-diameter thin-walled steel pipe mill line
Large diameter tube mill is used to produce straight seam welded steel pipes with outer diameters from 114 mm to over 500 mm, widely applied in structural, fluid transport, and construction piping.
Greatwall specializes in high-frequency welded pipe production lines for large-diameter, thin-walled steel pipes. The lines feature advanced control systems, reliable forming technology, and high efficiency, serving the construction, infrastructure, and petrochemical industries.
Each line is customized to customer needs. The pipes have a smooth appearance, high pressure resistance, and reduced weight, helping lower installation and material costs.
Process: loading → unwinding → straightening → clamping and leveling → shearing and welding →Accumulator→ forming, high-frequency extrusion welding, removing external (internal) burrs, weld polishing, weld flaw detection, water cooling, sizing, rough straightening → Saw cutting → conveyor rollers → automatic packaging → marking → inspection and collection → storage
High-Frequency Welding Technology: Stable and precise straight seam welding.
Adjustable Roll Forming: Accommodates a wide range of pipe diameters and thicknesses.
Servo-Controlled Flying Saw: Ensures high-accuracy cutting at full line speed.
Human-Machine Interface (HMI): Intuitive PLC control system for easy operation.
Thin-Wall Compatibility: Suitable for 2.0–6.0 mm wall thickness, optimizing material use.
High Production Speed: Up to 60 m/min depending on configuration.
| Model | Round tube | Tube Thickness | Production Speed | Welding Type |
|---|---|---|---|---|
| ERW180 | 50–180 mm | 1.2–3.0 mm | 15–50 m/min | High Frequency Welding |
| ERW230 | 76–230 mm | 1.8–5.0 mm | 15–50 m/min | High Frequency Welding |
| ERW325 | 114–325 mm | 1.6–5.0 mm | 15–50 m/min | High Frequency Welding |
| Application Area | Common Challenges | Greatwall Solutions |
|---|---|---|
| Construction & Building | Long-length pipe demand, consistent diameter | Continuous forming and HF welding stability |
| Infrastructure Projects | Pressure resistance, installation precision | Stronger weld seams, accurate sizing |
| Fluid Transport | Internal surface smoothness, corrosion risk | Thin-walled precision pipe forming |
| Steel Structure Fabrication | Load-bearing capacity | Thick-wall pipe forming with tight tolerance |
| Piling/Foundations | Pipe strength under heavy load | Uniform welding and OD consistency |
Target Pipe Size Range: Choose a model (e.g., ERW180 / ERW230 / ERW325) based on required OD and wall thickness.
Material Type: Compatible with carbon steel, low-alloy steel, and galvanized strip.
Production Speed: Consider speed requirements for daily output targets.
Factory Space: Greatwall offers layout design assistance based on space constraints.
Automation Level: All models support PLC + touch screen automation with optional remote monitoring.
Founded in 1999, specializes in ERW welded pipe equipment (HG, DLW, LW series)
Top 3 manufacturer in photovoltaic zinc-aluminum-magnesium bracket equipment in China
Serves 20+ provinces in China; partners with leading domestic and international companies
Exports to Saudi Arabia, Russia, USA, India, Egypt, Southeast Asia, and more
30,000+ m² factory with advanced CNC and assembly lines
CE certified with strict quality control
Offers turnkey services: design, manufacturing, installation, training, after-sales
Provides on-site installation, remote support, spare parts, and technical assistance
Small-diameter thick-walled steel pipe mill line
Pipe manufacturing equipment refers to a series of machinery used to produce metal or plastic pipes for industrial use. These machines include pipe forming, welding, sizing, and cutting systems that convert raw materials such as steel coils into finished pipes of various diameters and wall thicknesses.
Greatwall is a professional manufacturer of pipe manufacturing equipment, focusing on small-diameter, thick-walled steel pipe mill lines. With over 15 years of production experience, Greatwall offers equipment with high-precision forming, stable welding, and automated control systems to support pipe manufacturing for construction, petrochemical, machinery, and infrastructure industries.
Uncoiling → shearing and welding → Accumulator→ forming, high-frequency welding, deburring, cooling, sizing, rough straightening → cold cutting and sawing → roller after sawing → inspection and collection → packaging → weighing → marking → storage
| Model | Round tube | Tube thickness | Line Speed | Pipe Shape |
|---|---|---|---|---|
| HG50 | φ16～φ50mm | 1.5～5.5mm | 20–60 m/min | Round/Square/Rectangular |
| HG76 | Φ25～φ76mm | 2.0～7.0mm | 15-50m/min | Round/Square/Rectangular |
| HG141 | Φ60～φ141mm | 3.0～12.0mm | 15-50m/min | Round/Square/Rectangular |
| HG127 | Φ60～φ127mm | 3.0～10.0mm | 10–40 m/min | Round/Square/Rectangular |
| Industry | Common Problems | Solutions with Greatwall Equipment |
|---|---|---|
| Oil & Gas Pipeline | High pressure, corrosion resistance | Supports thick-walled steel tube forming and HF welding |
| Construction Framework | Dimensional stability, load-bearing | High-precision sizing and shaping units |
| HVAC Systems | Leak-proof joints, tight dimensional fit | Seamless welding and servo-driven control |
| Automotive | Tight tolerances for exhaust pipes | Stable forming + precise cut-to-length |
| Water Supply Systems | Long-length production, uniform wall | Continuous production with online control |
A tube mill line is a continuous production system that forms steel strip into a tube shape and welds the strip edges into a finished pipe. A typical welded pipe production process includes:
Uncoiling → Strip Leveling → Shearing and Butt Welding → Accumulator → Roll Forming → High-Frequency Welding → Burr Removal → Cooling → Sizing → Straightening → Cutting → Inspection → Packing → Finished Pipe Collection
Different production lines can be configured with solid-state high-frequency welders, flying saws, cold saws, automatic packing machines, online flaw detection systems, and PLC control systems to meet different production needs.
High Production Efficiency: Production speed ranges from 30 to 120 meters per minute depending on tube diameter and material.
Wide Tube Range: Capable of producing tubes from small diameter thin-wall pipes to large diameter structural tubes.
Advanced Automation: PLC and HMI control systems ensure stable operation and minimal downtime.
Flexible Material Compatibility: Supports carbon steel, stainless steel, galvanized steel, and other alloys.
Precision Welding & Forming: Ensures smooth surfaces, strong welds, and consistent dimensions.
Customizable Lines: Industrial tube mills can be tailored to specific diameters, wall thickness, and steel grades.
Our industrial tube mills serve multiple industries including:
Construction & infrastructure (scaffolding, structural tubing)
Automotive & transportation (chassis, exhaust systems)
Oil & gas (pipeline tubes, casing)
Furniture & appliances (metal frames, components)
Mechanical engineering (hydraulic cylinders, machine parts)
Choosing the right tube mill line depends on your tube type, size range, wall thickness, production capacity, and workshop layout. Great Wall can recommend a suitable welded pipe production line based on your actual manufacturing needs.
For round welded pipes, you can choose an ERW tube mill, HF tube mill, or FFX technology tube mill. For square and rectangular tubes, a direct square forming tube mill is more suitable.
Confirm your minimum and maximum pipe diameter, wall thickness, finished pipe length, and material grade. These factors determine the forming system, welding power, cutting method, and machine structure.
For high-volume standard pipe production, choose a stable and efficient tube mill line. For frequent size changes, FFX technology or direct square forming can help reduce adjustment time.
Tube mill lines can be configured for carbon steel, galvanized steel, low alloy steel, stainless steel, and other materials. High-frequency welding is commonly used for stable and continuous welded pipe production.
Plant length, width, crane height, coil loading area, pipe conveying space, and packing area should be considered before finalizing the tube mill design.
PLC control, HMI operation, quick-change systems, online inspection, automatic cutting, and automatic packing can be added according to your labor cost and production efficiency requirements.
| Production Need | Recommended Tube Mill |
|---|---|
| General welded pipe production | ERW Tube Mill Line |
| High-frequency welded pipe production | HF Tube Mill |
| Frequent round pipe size changes | FFX Technology Tube Mill |
| Square and rectangular tube production | Direct Square Forming Tube Mill |
| Large-diameter thin-wall pipe production | Large-Diameter Thin-Walled Tube Mill |
| Small-diameter thick-wall pipe production | Small-Diameter Thick-Walled Tube Mill |
Contact Great Wall to get a customized tube mill line solution based on your tube size, wall thickness, material, output, and workshop layout.
An HF tube mill, also known as a high frequency tube mill, is a welded pipe production line that uses high-frequency induction welding technology to manufacture steel tubes from continuous steel strip. Compared with conventional welding methods, HF tube mills provide higher welding speed, stronger weld seams, improved dimensional accuracy, and better production efficiency.
| Feature | HF Tube Mill | Conventional Tube Mill |
|---|---|---|
| Welding Method | High-frequency induction welding | Conventional welding process |
| Production Speed | Higher | Lower |
| Weld Quality | Strong, consistent weld seam | Depends on welding process |
| Automation | PLC and intelligent control | Varies by configuration |
| Production Efficiency | High | Medium |
| Suitable Products | Round, square, rectangular welded tubes | General pipe production |
In-House Production: A 30,000+ m² factory supports machining, assembly, testing, and complete production line manufacturing.
Patented Technology: Multiple patented technologies are applied to ERW, FFX, and direct square forming tube mill systems.
Quality Assurance: ISO 9001 quality management and strict inspections are applied from component machining to final line testing.
Customized Solutions: Tube mill lines are designed according to pipe size, wall thickness, material, output, and automation requirements.
Global Export Experience: Tube mill equipment has been supplied to customers in more than 25 countries and regions.
Factory Testing: Each production line is assembled, commissioned, and tested before shipment.
Technical Support: Professional engineers provide installation guidance, commissioning, operator training, and after-sales service.
Yes. Great Wall is a professional tube mill manufacturer established in 1999, with its own machining, assembly, and testing facilities.
Great Wall manufactures ERW tube mills, FFX tube mill lines, direct square forming lines, large-diameter pipe mills, thick-wall tube mills, slitting lines, and auxiliary equipment.
Yes. Each line can be customized according to pipe shape, diameter, wall thickness, steel grade, production speed, and automation level.
Yes. Installation guidance, commissioning, operator training, remote support, and spare parts services are available.
Yes. Customers can visit the factory and inspect the tube mill during assembly, commissioning, or final acceptance testing.
Please provide the pipe shape, diameter range, wall thickness, material, finished pipe length, required speed, workshop size, voltage, and destination country.
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