High-Precision Stainless Steel Tube Mill for Industrial Welded Pipe Production

Modern stainless steel tube manufacturing demands more than fast production—it requires dimensional accuracy, stable welding quality, intelligent process control, and long-term operational reliability. Our Steel Pipe Making Machine is engineered to meet these requirements, providing a complete automated solution for manufacturing high-quality stainless steel welded tubes.

Developed by Wuxi Marley Machinery Technology Co., Ltd. this production line combines precision roll forming, intelligent welding technology, online heat treatment, sizing, straightening, inspection, and automatic cutting into one continuous manufacturing system. It is suitable for producing industrial stainless steel pipes that comply with international quality standards while improving production efficiency and reducing operating costs.

Whether you manufacture heat exchanger tubes, sanitary tubing, stainless steel water pipes, automotive exhaust tubes, or industrial process pipes, this machine delivers stable performance and consistent product quality throughout long production cycles.

Why Choose Our Steel Pipe Making Machine?

Unlike conventional welded tube mills, our production line is designed around precision engineering, intelligent automation, and continuous production stability.

High-Precision Mechanical Structure

The transmission shaft runout is controlled within ≤0.03 mm, ensuring excellent roll alignment and smooth pipe forming. Critical components are precision-machined with flatness controlled between 0.01–0.02 mm, significantly reducing vibration and improving dimensional consistency.

Intelligent Welding Control

The production line adopts an advanced single-cathode electromagnetic welding control system, automatically adjusting welding current and frequency to maintain stable weld penetration and consistent weld quality throughout production.

Stable High-Speed Production

Optimized forming technology enables continuous production speeds of up to 7 m/min when manufacturing Ø16 × 0.6 mm SUS304 stainless steel tubes while maintaining excellent welding quality.

High Finished Product Rate

With optimized forming rolls, precision welding, and stable sizing technology, the production line can achieve a finished product yield exceeding 98%, reducing material waste and improving production efficiency.

Complete Production Traceability

The PLC system automatically records important production parameters including:

• Welding current
• Welding frequency
• Solution annealing power
• Production speed
• Pipe specification
• Production time

This allows manufacturers to trace every production batch and supports comprehensive quality management.

Intelligent PLC Operation

The control system features:

• One-touch machine start and stop
• Automatic parameter storage
• Water shortage alarm
• Automatic water protection
• Real-time production monitoring
• Historical production record management

These functions simplify operation while improving production safety and equipment reliability.

Technical Specifications

Automated Production Process

The Steel Pipe Making Machine integrates every manufacturing stage into one continuous production line, ensuring stable quality and high production efficiency.

Stainless Steel Coil

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Uncoiling

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Strip Cleaning

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Edge Preparation

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Precision W Forming

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Automatic TIG Welding

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Internal Weld Bead Removal

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External Weld Grinding

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Online Solution Annealing (Optional)

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Water Cooling

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Sizing

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Straightening

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Online Eddy Current Inspection

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Length Measuring

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Automatic Cutting

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Inkjet Marking

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Finished Product Packing

Each production stage is optimized to ensure consistent pipe dimensions, smooth weld seams, and reliable mechanical performance.

Innovative Structural Design

Our latest generation Steel Pipe Making Machine incorporates several engineering improvements to enhance long-term production stability.

Modular Machine Frame

The machine adopts a sectional frame structure that improves installation accuracy, simplifies maintenance, and enhances equipment rigidity during continuous production.

Online Solution Annealing

An optional online solution annealing section is positioned immediately after welding to eliminate residual welding stress. This helps prevent deformation during subsequent sizing and polishing operations while improving the corrosion resistance of stainless steel pipes.

Reinforced Vertical Roll Stand

The vertical roll stand features an innovative U-shaped shaft support design with bearings mounted at both ends of the shaft. This structure effectively minimizes shaft deformation and maintains accurate roll positioning throughout high-speed production.

Precision Machining Technology

Critical mounting surfaces are precision-milled to a flatness tolerance of 0.01–0.02 mm, ensuring accurate equipment assembly and superior forming consistency.

Pipe Types Produced

The production line is suitable for manufacturing a wide range of stainless steel welded tubes, including:

• Stainless Steel Industrial Pipe
• Stainless Steel Sanitary Tube
• Heat Exchanger Tube
• Stainless Steel Water Pipe
• Stainless Steel Fluid Pipe
• Stainless Steel Automotive Exhaust Tube
• Decorative Stainless Steel Tube
• Structural Stainless Steel Tube
• Food Grade Stainless Steel Tube
• Chemical Process Pipe

Different pipe sizes can be produced by changing roll tooling, allowing manufacturers to switch specifications efficiently without replacing the complete production line.

Typical Applications

Our Steel Pipe Making Machine is widely used in various industries requiring precision stainless steel tubing.

International Manufacturing Standards

The production line is capable of producing stainless steel welded pipes that comply with major international manufacturing standards, including:

• ASTM A249
• ASTM A269
• ASTM A270
• ASTM A312
• GB/T 12771
• GB151
• HG 20537
• DIN Standards
• ISO Standards

Compliance depends on material selection, production configuration, and customer specifications.

Optional Equipment

To meet different production requirements, the Steel Pipe Making Machine can be equipped with optional systems including:

• Automatic Coil Loading System
• Laser Seam Tracking
• Online Diameter Measurement
• Eddy Current Testing
• Ultrasonic Testing System
• Automatic Pipe Stacking
• Inkjet Marking Machine
• Automatic Packaging System
• MES Data Integration

Why Choose Wuxi Marley Machinery Technology Co., Ltd.?

We provide more than equipment—we deliver complete stainless steel tube production solutions.

From project planning to final commissioning, our engineering team supports customers with:

• Production line layout design
• Equipment selection
• Roll tooling design
• Installation guidance
• Operator training
• Production commissioning
• Process optimization
• Spare parts supply
• Long-term technical support

Our goal is to help manufacturers establish stable, efficient, and high-quality stainless steel tube production lines with lower operating costs and higher productivity.

Frequently Asked Questions

What materials can this Steel Pipe Making Machine process?

The machine is suitable for stainless steel grades including 201, 304, 304L, 316L, 321, 310S, and duplex stainless steel. Other materials can also be evaluated according to project requirements.

Can one machine produce different pipe sizes?

Yes. Different pipe diameters and wall thicknesses can be produced by replacing the roll tooling, allowing flexible production for multiple product specifications.

Is online solution annealing available?

Yes. The production line can be equipped with an optional online solution annealing system to reduce welding stress, improve corrosion resistance, and enhance the mechanical properties of stainless steel tubes.

How is weld quality ensured?

The production line utilizes precision W-forming technology, intelligent electromagnetic welding control, online weld bead treatment, and real-time production monitoring to maintain stable weld quality throughout continuous operation.

What inspection systems are available?

Optional online inspection systems include eddy current testing, ultrasonic testing, diameter measurement, and production data traceability to support comprehensive quality control.