ERW Carbon Steel Tube Mill

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32mm ERW Tube Mill Machine | Small Investment Steel Pipe Production Line with Flying Cold Saw

32mm ERW Tube Mill Machine for producing round, square and rectangular steel tubes. Low investment, high speed, compact design, 100kW HF welder and flying cold saw. Ideal for startups and tube manufacturers.

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Product Description

32mm ERW Tube Mill Machine – Small Investment, Fast Return, Big Opportunities

Introduction

The 32mm ERW Tube Mill Machine may be one of the smallest tube production lines in the industry, but its business potential is enormous. For entrepreneurs entering the steel tube manufacturing industry, this compact production line offers an ideal balance of low investment, high efficiency, and rapid return on investment.

Designed for producing small-diameter welded steel tubes, the 32mm ERW tube mill requires less factory space, consumes less power, and involves lower startup costs than larger tube mills. At the same time, it delivers impressive production speeds, helping manufacturers quickly recover their investment and gain market share.

Whether you are launching a new tube manufacturing business or expanding your existing production capacity, the 32mm ERW Tube Mill is a practical and profitable choice.

Why Choose a 32mm ERW Tube Mill?

Low Initial Investment

Compared with larger tube mills, the 32mm line requires significantly lower capital investment, making it perfect for startups and small manufacturers.

Fast Return on Investment

The machine's high production speed and strong market demand for small steel tubes enable customers to recover their investment quickly.

Compact Factory Layout

The entire production line occupies relatively little floor space, reducing workshop construction costs and making installation easier.

High Production Efficiency

Equipped with advanced forming technology and a 100kW high-frequency welding system, the line delivers stable, continuous production with excellent welding quality.

Flexible Product Range

The mill can produce round, square, and rectangular tubes used across various industries.

Complete Production Line Configuration

The 32mm ERW Tube Mill Production Line typically includes:

1. Double-Head Uncoiler

Coil loading capacity: 2-3 tons
Quick coil changing
Reduced downtime
Continuous production support

2. Shear and Butt Welding Machine

Automatically cuts strip ends
Welds strip tails and heads together
Ensures uninterrupted production

3. Cage Accumulator or Spiral Accumulator

Cage Accumulator Benefits

Compact structure
Lower maintenance
Suitable for high-speed production

Spiral Accumulator Benefits

Larger strip storage capacity
Longer continuous running time
Improved production efficiency

4. Forming Section

Functions include:

Strip guiding
Edge preparation
Roll forming
Open tube forming

The forming section gradually transforms steel strip into a tubular shape.

5. High-Frequency Welding System

100kW Solid-State HF Welder
Stable welding quality
Energy efficient
High welding speed

6. Sizing Section

The sizing unit accurately controls:

Tube diameter
Tube straightness
Surface quality

It can also produce square and rectangular tubes directly through roll adjustment.

7. Flying Cold Saw

Advantages:

Burr-free cutting
High cutting accuracy
Reduced noise
Improved safety
Suitable for high-speed production

8. Run-Out Table and Packing Area

Finished tubes are automatically transported for collection and packaging.

Technical Parameters

Item	Specification
Round Tube Diameter	Φ10 – Φ32 mm
Square Tube Size	10×10 – 25×25 mm
Rectangular Tube Size	10×20 – 20×30 mm
Wall Thickness	0.3 – 1.5 mm
Production Speed	Up to 120 m/min
Strip Width	According to tube size
HF Welder Power	100 kW
Cutting Method	Flying Cold Saw
Material	Carbon Steel, GI Steel, Mild Steel
Line Direction	Left-to-right or right-to-left
Control System	PLC Automatic Control

Parameters can be customized according to customer requirements.

The Technical Flow of the Production Line

{Steel Tape}→→ Double-head un-coiler →→Strip-head Cutter and welder→→Spiral accumulator→→Forming section（Flattening unit +Main driving unit +Forming unit +Guide unit +squeeze roller）+ De-burr frame →→Cooling unit →→ Sizing unit and straightener →→Cutoff saw →→ Run-out table

Products That Can Be Manufactured

The 32mm ERW Tube Mill can produce:

Round Tubes

Furniture tubes
Greenhouse tubes
Electrical conduit pipes
Bicycle frame tubes
Lightweight structural pipes

Square Tubes

Furniture frames
Shelving systems
Display racks
Metal cabinets

Rectangular Tubes

Window and door reinforcement
Decorative structures
Light steel constructions

Ideal Applications

New Tube Manufacturing Businesses

For first-time investors, the 32mm tube mill offers the lowest entry barrier while maintaining strong profitability.

Small and Medium Enterprises

Companies looking to diversify their product portfolio can quickly add tube production capabilities.

Local Steel Service Centers

Steel processing centers can increase value-added production by manufacturing finished tubes directly.

Export-Oriented Manufacturers

Small-diameter steel tubes remain in strong demand across Africa, South America, Southeast Asia, and the Middle East.

Advantages of the Flying Cold Saw System

Many traditional tube mills still use friction saws. The flying cold saw offers several important advantages:

Cleaner cut surface
Higher dimensional accuracy
Lower noise levels
Reduced maintenance
Better product appearance
Improved worker safety

These benefits help manufacturers meet higher market standards and increase product competitiveness.

Frequently Asked Questions

What materials can this tube mill process?

The machine can process:

Carbon steel strips
Mild steel strips
Galvanized steel strips
Low-alloy steel strips

Is the machine suitable for beginners?

Yes. The 32mm ERW tube mill is one of the best choices for new investors because of its low investment cost, compact footprint, and simple operation.

How much factory space is required?

Generally, a workshop length of 60–80 meters is sufficient, depending on the accumulator type and packing requirements.

Can the machine produce square tubes directly?

Yes. By adjusting the roll tooling, the line can produce square and rectangular tubes from round tube formation.

What is the expected return on investment?

Many customers recover their investment quickly because of the low startup cost and high demand for small-diameter welded tubes. Actual ROI depends on local market conditions and production volume.

Can the machine be customized?

Yes. We can customize:

Tube size range
Production speed
Accumulator type
Welder power
Cutting system
Automation level

Why AIS MACHINERY?

AIS MACHINERY specializes in ERW tube mills, roll forming machines, and steel processing equipment. With years of manufacturing experience and installations worldwide, we provide:

Professional engineering support
Customized solutions
Reliable machine quality
Overseas installation service
Operator training
Long-term technical support

If you are planning to start a tube manufacturing business with limited investment but strong growth potential, the 32mm ERW Tube Mill Machine is one of the smartest choices available today.

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small diameter steel tube making machine

Welding quality is unstable during operation. How to resolve it?

Unstable welding quality can result from several factors, including unstable welding current, inaccurate workpiece dimensions, or uneven welding pressure. First, check the high-frequency induction welder to ensure the welding current and frequency settings are correct and stable during operation. If the issue persists, inspect the temperature control system in the welding area to ensure uniform heating. Lastly, check the feed speed and dimensional control of the workpiece to ensure they match the welding process.

Pipe deformation occurs during high-speed production. What should be done?

Pipe deformation is typically related to the forming and sizing system. It’s recommended to check the pressure balance of the forming rollers to ensure even pressure during the forming process. An additional cause could be an issue with the sizing system calibration. Ensure the gap between sizing rollers is set correctly and adjust based on the pipe specifications. If these issues are ruled out, check the cooling system to ensure even distribution of cooling water to prevent localized overheating that may cause deformation.

The production speed is slow. How can production efficiency be improved?

Slow production speed can be caused by multiple factors. First, check the automation control system to ensure the program is correct and optimize running parameters to minimize unnecessary downtime. Next, inspect the wear of the drive system to ensure that the motor and driving parts are operating efficiently. Also, ensure continuous material supply without obstruction. The speed at which steel coils are replaced can also impact the overall speed. By making these adjustments, production efficiency can be significantly improved, reducing downtime and increasing overall output.

Frequent strip breakage during production. How to prevent it?

Strip breakage is often caused by unstable tension control or issues with the feeding system. Start by inspecting the tension control system to ensure the precision of the tension sensors and actuators, as well as their compatibility with the PLC control system. Uneven tension distribution on the steel strip can lead to breakage. Additionally, check the feeding system for smooth operation, ensuring the strip is fed uniformly to prevent breakage. Installing strip tension control devices or improving feed guide systems can help mitigate this issue.

What are the maintenance cycles and operational precautions for the equipment?

Maintenance cycles should be based on usage frequency. Regular daily maintenance includes checking the lubrication system, cleaning the cooling system, and inspecting electrical and mechanical parts for wear, especially the power system of the welding machine and sizing rollers. Monthly checks should focus on system precision, making necessary adjustments and cleaning to ensure stable operation. It is also crucial to regularly replace consumables such as welding electrodes, drive belts, and gears to minimize the risk of equipment failures.

How to select the right pipe specifications and production requirements?

When selecting the right pipe specifications, evaluate the market demand and the intended use of the product. The 12.7mm-50.8mm longitudinal seam welding pipe equipment is widely used for producing small to medium-sized pipes and is suitable for various wall thicknesses. It is ideal for industries such as construction, machinery, and oil and gas transportation. Choose the appropriate material, welding process, and sizing settings based on the application. It’s advisable to communicate with the technical team to determine the optimal production process for precise pipe specifications.

Does the equipment's electrical system support remote monitoring and fault diagnosis?

Yes, the 12.7mm-50.8mm longitudinal seam welding pipe equipment is equipped with an advanced PLC control system that allows for remote monitoring and fault diagnosis. By connecting the equipment to a cloud platform or remote interface, users can monitor the production status in real time, analyze fault causes, and make necessary adjustments. This remote functionality significantly reduces downtime and enhances the equipment’s operational efficiency.

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