Adjustable Width Structural Steel Pipe Production Line

The Zhongtuo Laser Welding Square Tubing Making Machine is an advanced and efficient tube mill system designed to manufacture galvanized square and rectangular steel pipes with high precision and stable welding quality. By integrating modern laser welding technology with a robust roll forming structure, this production line provides manufacturers with a reliable and cost-effective solution for structural steel applications.

Compared with conventional high-frequency welding equipment, this laser welding tube mill requires less investment, consumes lower energy, and occupies a smaller workshop area. Therefore, it is particularly suitable for growing factories, new production lines, and businesses seeking flexible manufacturing capacity.

Flexible Adjustable Square Tube Production for Construction Applications

This machine is engineered to produce square tubing with a fixed height of 50 mm while allowing width adjustment across multiple sizes, including:

80 / 90 / 100 / 110 / 112 / 120 / 130 / 140 / 150 mm

As a result, manufacturers can quickly switch specifications without replacing major tooling components, significantly improving production efficiency and reducing downtime.

Key Advantages of Zhongtuo Square Tube Making Machine

1. High Precision Forming and Stable Welding

We design the forming rollers with high-strength materials to ensure dimensional accuracy and long service life. Meanwhile, the laser welding system guarantees strong and smooth seams.

2. Automatic Size Adjustment

The machine supports automatic specification change, which greatly reduces manual labor and improves operational efficiency.

3. Heavy-Duty Structure with Gearbox Drive

Compared with chain transmission, the gearbox driving system provides higher stability, lower noise, and longer equipment lifespan.

4. Integrated Cooling System

The cooling unit maintains welding temperature stability, ensuring consistent production quality during long-time operation.

5. Customized Engineering Support

We design each machine according to customer drawings and production needs. From layout planning to installation guidance, our engineers provide one-to-one technical support.

laser welding galvanized square tubeThe finished tubes are widely used in:

• Steel structure buildings
• Purlins and support frames
• Mechanical structures
• Metal fabrication systems
• Industrial construction projects

Why Choose Laser Welding Tube Mill Technology?

Laser welding technology introduces several important advantages. First, it delivers a cleaner weld seam with minimal heat-affected zones, which reduces deformation and improves product strength. Additionally, the process ensures stable welding consistency across different wall thicknesses.

Moreover, laser welding supports medium-thickness galvanized materials (1.2–2.0 mm) with excellent dimensional accuracy, making it ideal for structural applications that require both strength and appearance quality.

Production Process Flow

The complete production line operates automatically and smoothly through the following steps:

Decoiling → Leveling → Roll Forming → Laser Welding → Sizing → Straightening → Flying Saw Cutting → Output Table

Before production begins, our engineering team provides CAD profile drawings and process layout diagrams for customer confirmation. This step ensures the final machine configuration meets all technical requirements and avoids potential production risks.

Main Technical Specifications

Item	Specification
Material	Galvanized Steel / Carbon Steel
Material Thickness	1.2 – 2.0 mm
Tube Height	Fixed 50 mm
Adjustable Width	80–150 mm
Decoiler	5 Ton Manual Decoiler
Forming Stations	Customized
Driving System	Gearbox Transmission
Welding Type	3 kW Laser Welding
Speed	10–25 m/min
Cutting System	Flying Saw
Automatic Size Change	Yes
Cooling System	Included
Voltage	410V, 50Hz, 3 Phase
Machine Color	Same as CZ Machine (Customized)

Additional Roll Forming Machine We Provide

Besides square tubing machines, we also manufacture a full range of roll forming equipment:

• C / Z Purlin Roll Forming Machine
• Drywall Stud and Track Machine
• Roof and Wall Panel Machine
• Floor Deck Roll Forming Machine
• Ridge Cap Machine
• Downspout Machine
• Top Hat Channel Machine

FAQ

What material can this square tube making machine process?

The machine can process galvanized steel coils and carbon steel coils with thickness ranging from 1.2 mm to 2.0 mm and yield strength between 250–550 MPa.

Can the tube size be adjusted automatically?

Yes. The machine supports automatic width adjustment from 80 mm to 150 mm while maintaining a fixed tube height of 50 mm, which significantly reduces changeover time.

What welding technology does the machine use?

The production line uses a 3 kW laser welding system, which provides cleaner weld seams, lower deformation, and higher structural strength compared with traditional welding methods.

Is gearbox transmission better than chain transmission?

Yes. Gearbox drive offers higher stability, longer service life, lower noise, and more precise synchronization during production.

Do you provide installation and technical support?

Yes. We provide CAD drawings, process flow diagrams, remote guidance, and overseas installation support to ensure smooth machine operation.

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