3 Inch 76mm ERW Tube Mill Machine

3 inch ERW tube mill for producing round steel tubes from 19.1mm to 76mm. Suitable for carbon steel pipe manufacturing, furniture tubing, structural pipes, and industrial applications. Customized thickness up to 4mm.







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3 Inch (76mm) ERW Tube Mill Machine | 19.1–76mm Steel Pipe Production Line

3 Inch ERW Tube Mill – The Most Popular Choice for Steel Tube Manufacturers

The 3-inch ERW tube mill (76mm tube mill) is one of the most widely used and best-selling models in the welded pipe industry. Designed for producing round steel tubes from 19.1mm to 76mm in diameter, this production line offers excellent flexibility for manufacturers serving construction, furniture, mechanical, automotive, agricultural, and structural steel markets.

For companies entering the steel tube manufacturing business, a 3-inch ERW tube mill is often considered the ideal starting point because it covers a broad range of common pipe sizes while maintaining reasonable investment and operating costs.

Whether you are producing thin-wall furniture tubing or thicker structural pipes, this machine can be customized according to your production requirements.


Main Technical Parameters

ItemSpecification
Mill Model3 Inch ERW Tube Mill
Round Tube Diameter19.1mm – 76mm
Tube Wall Thickness1.0mm – 3.0mm (standard)
Optional Thickness Range1.0mm – 4.0mm
Tube TypeRound, Square, Rectangular (with sizing section)
Raw MaterialCarbon Steel Coil, Mild Steel Strip, Low-Alloy Steel
Welding MethodHigh Frequency Induction Welding (HFW/HFIW)
Forming ProcessRoll Forming
Production SpeedDepending on tube size and thickness
Control SystemCustomized according to customer requirements

Technical specifications can be customized based on production requirements and local market demand.



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What Can a 76mm ERW Tube Mill Produce?

A 3-inch tube mill can manufacture a wide range of welded steel tubes used in various industries, including:

Construction Industry

  • Scaffolding tubes

  • Structural steel pipes

  • Fence posts

  • Handrail tubes

Furniture Industry

  • Chair frames

  • Table frames

  • Bed frames

  • Decorative steel tubing

Mechanical Manufacturing

  • Equipment support tubes

  • Conveyor rollers

  • Machine frames

Agricultural Applications

  • Greenhouse pipes

  • Irrigation tubing

  • Livestock fencing systems

General Industrial Use

  • Steel pipe distribution

  • OEM component manufacturing

  • Storage rack systems


Production Process

The complete production line generally includes:

  1. Steel Coil Loading

  2. Uncoiling

  3. Strip End Shearing and Welding

  4. Accumulator Storage

  5. Forming Section

  6. High Frequency Welding

  7. Weld Seam Deburring

  8. Cooling

  9. Sizing Section

  10. Straightening

  11. Flying Saw Cutting

  12. Finished Tube Collection

The entire process operates continuously to ensure stable production efficiency and consistent product quality.


Key Features of the 3 Inch Tube Mill

Wide Product Range

With a tube diameter range from 19.1mm to 76mm, one production line can cover many common market specifications, reducing the need for multiple machines.

Ideal for New Investors

Many first-time tube manufacturers choose this model because it offers a good balance between production capacity, product diversity, and investment cost.

High Frequency Welding Technology

The line utilizes high-frequency welding technology to achieve strong weld seams, stable production, and reliable tube quality.

Flexible Thickness Options

Standard configurations typically produce tubes from 1–3mm wall thickness, while customized solutions can handle up to 4mm depending on customer requirements.

Expandable Product Capability

By changing roll tooling, the machine can produce round tubes as well as square and rectangular sections, improving production flexibility.


Why Is the 76mm Tube Mill So Popular?

The 76mm ERW tube mill occupies a unique position in the market because it covers a large percentage of commonly used steel tube sizes.

Compared with smaller mills, it provides greater product diversity. Compared with larger mills, it requires lower investment and operating costs.

For many manufacturers, this model offers:

  • Broad market coverage

  • Flexible product dimensions

  • Lower production risk

  • Easier customer acquisition

  • Faster return on investment

These advantages have made it one of the most popular ERW tube mill sizes worldwide.


  • ERW pipe making machine


  • steel tube production line




  • 3 inch ERW tube mill

     

  • 76mm tube mill machine


 



Quality Control

A reliable tube mill should include quality control measures throughout production, such as:

  • Precision roll forming

  • Stable welding parameter control

  • Weld seam monitoring

  • Dimensional inspection

  • Straightness verification

  • Cutting accuracy control

These measures help ensure consistent tube quality and production stability.


Frequently Asked Questions (FAQ)

What is the maximum tube diameter this machine can produce?

The standard maximum round tube diameter is 76mm (3 inches).

What is the minimum tube diameter?

The minimum round tube diameter is 19.1mm.

What wall thickness can be produced?

Standard production ranges from 1.0mm to 3.0mm. Customized configurations can support up to 4.0mm wall thickness.

Can the machine produce square and rectangular tubes?

Yes. By using the appropriate sizing rolls and tooling, the line can produce square and rectangular sections within the machine's forming range.

Is this model suitable for beginners?

Yes. The 3-inch ERW tube mill is widely considered one of the best choices for companies entering the welded pipe manufacturing industry because of its versatility and market coverage.

What raw materials can be used?

The machine is typically designed for carbon steel strips, mild steel coils, and other suitable steel materials used in welded tube production.

Can the production line be customized?

Yes. Technical configurations, thickness range, production speed, electrical systems, and auxiliary equipment can be customized according to customer requirements.


Looking for a Reliable 3 Inch ERW Tube Mill?

If you are planning to start a steel tube manufacturing business or expand your existing production capacity, a 76mm ERW tube mill offers an excellent combination of flexibility, market coverage, and investment efficiency.

Contact us for detailed technical specifications, production solutions, and customized configurations tailored to your project requirements.

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Contact AIS MACHINERY

If you are looking for a reliable 5 inch 127mm ERW tube mill machine with advanced automation and stable production performance, please contact AIS MACHINERY for technical details, videos, quotations, and project solutions.

Website: www.aistubemill.com

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Looking for a complete understanding of ERW TUBE MILL technology? Read our Ultimate Guide to ERW TUBE MILL.




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    ERW tube mill with spiral accumulator

    What pipe sizes can this 5 inch ERW tube mill produce?

    The machine can produce round pipes from 38mm to 127mm with wall thickness from 1.5mm to 5.0mm. Square and rectangular tubes can also be produced with corresponding tooling.

    What is the advantage of the spiral accumulator?

    The spiral accumulator allows continuous production during coil changing and provides stable strip feeding for high-speed operation.

    Why choose a cold saw instead of a friction saw?

    Cold saw cutting provides smoother pipe ends, higher cutting precision, lower noise, and better finished product quality.

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