Steel Tube Mill Production Line Machine 380V for Hot Rolled Steel

Steel Tube Production Line Tube Making Machine

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Finish Product information:

Product Overview

The Steel Tube Mill Production Line Machine 380V for Hot Rolled Steel is designed for continuous production of welded steel tubes using hot rolled steel strip as the primary raw material.

The production line combines high-efficiency roll forming, high-frequency welding, precision sizing, and automatic cutting into one complete manufacturing solution.

It is suitable for manufacturers producing structural pipes, construction tubes, mechanical tubes, furniture tubes, agricultural tubes, and industrial steel pipe products requiring stable quality and continuous production.

Problem

Many manufacturers using hot rolled steel experience unstable production when increasing output.

Typical problems include poor strip feeding, inconsistent tube dimensions, unstable weld seams, excessive burrs, inaccurate cutting lengths, and frequent production interruptions during coil changes.

These issues increase material waste, reduce production efficiency, and affect downstream fabrication quality.

Clear Answer

A reliable steel tube mill production line should provide stable strip feeding, precise roll forming, efficient high-frequency welding, accurate sizing, and continuous cutting while maintaining consistent tube quality.

Choosing the correct production line improves productivity, reduces scrap, lowers operating costs, and ensures stable product quality throughout long production cycles.

Cause

Hot rolled steel has higher forming resistance than thin cold rolled strip.

If the forming stands lack sufficient rigidity, the strip may deform unevenly before welding, causing poor weld seam quality and unstable tube dimensions.

Incorrect welding power selection may lead to incomplete fusion or excessive heat input, affecting weld strength and surface finish.

Insufficient accumulator capacity often causes frequent production stops during coil replacement, reducing actual production efficiency.

Weak sizing systems can also lead to poor straightness and dimensional inconsistency, especially during continuous high-speed production.

Solution

The Steel Tube Mill Production Line provides a complete manufacturing solution from steel coil loading to finished tube packaging.

The production line generally includes:

• Hydraulic Uncoiler
• Strip Leveling
• Shear & End Welder
• Horizontal Accumulator
• Roll Forming Mill
• High Frequency Welder
• Weld Bead Removal
• Cooling Section
• Precision Sizing Mill
• Flying Saw or Cold Saw
• Run-out Table
• Automatic Packing System (Optional)

The heavy-duty forming section ensures stable strip guidance throughout production.

The high-frequency welding system produces continuous, reliable longitudinal weld seams while maintaining high production efficiency.

Precision sizing controls outside diameter, section dimensions, and straightness before cutting.

Automatic cutting improves productivity while maintaining consistent finished tube lengths.

Zhongyue Metallurgy Equipment Technology can customize the complete production line according to tube specifications, annual production capacity, automation requirements, and factory layout.

Specifications

Application

This production line is suitable for manufacturing steel tubes used across multiple industries.

Construction Industry

Production of structural pipes, scaffolding tubes, guardrails, steel framework, and support structures.

Stable dimensional accuracy improves installation efficiency and structural reliability.

Mechanical Manufacturing

Suitable for machinery frames, conveyors, industrial equipment supports, warehouse racks, and fabricated steel components.

Consistent weld quality reduces downstream machining and welding costs.

Furniture Industry

Ideal for producing chair tubes, table frames, shelving systems, and commercial furniture components.

Smooth tube surfaces and precise cutting improve product appearance and assembly quality.

Agricultural Equipment

Suitable for greenhouse structures, irrigation systems, livestock fencing, and agricultural support frames.

Continuous production helps reduce manufacturing cost while maintaining stable quality.

Industrial Pipe Production

Applicable to general industrial steel tubes used in mechanical fabrication, infrastructure, transportation equipment, and engineering projects.

How It Works

Production begins with loading hot rolled steel coils onto the hydraulic uncoiler.

The strip passes through the leveling section before entering the shear and end welder, allowing continuous production between coils.

The accumulator stores sufficient strip material during coil replacement to keep the forming mill operating continuously.

The roll forming mill gradually transforms flat strip into tubular form.

The high-frequency welding system joins both strip edges into a continuous longitudinal weld.

After weld bead removal, the tube enters cooling and precision sizing to achieve accurate dimensions and straightness.

Finally, the flying saw or cold saw cuts the tube into programmed lengths before transferring products to the run-out table for inspection and packaging.

How To Choose

1. Confirm Raw Material

Determine whether production will use hot rolled steel, cold rolled steel, galvanized steel, or other material grades.

Material selection affects forming force, welding parameters, and production speed.

2. Determine Tube Size Range

Outside diameter, section size, and wall thickness determine the appropriate mill model and motor configuration.

Future product expansion should also be considered during machine selection.

3. Select Proper Production Speed

Higher speed increases productivity only when forming stability, welding capacity, and cutting precision remain consistent.

Select a machine that balances speed with product quality.

4. Match Welding Capacity

High-frequency welding power should correspond to material thickness and production speed.

Proper matching ensures stable weld seams and minimizes production defects.

5. Choose Cutting Equipment

Flying saw is recommended for continuous high-speed production.

Cold saw provides smoother cutting surfaces and higher dimensional accuracy for precision applications.

6. Plan Automation

Automatic control, online inspection, automatic marking, and automatic bundling improve production efficiency while reducing labor requirements.

7. Consider Future Expansion

Choose equipment that supports future upgrades in tube size, wall thickness, production capacity, and automation without replacing the entire production line.

FAQ

1. Can this production line process hot rolled steel?

Yes.

The machine is specifically designed for hot rolled steel strip while remaining adaptable to other carbon steel materials after appropriate configuration.

2. Is 380V the only available voltage?

No.

The production line can be customized for different voltage standards according to customer requirements and local electrical specifications.

3. Can the machine produce square and rectangular tubes?

Yes.

Depending on the mill configuration, the production line can manufacture round pipes, square tubes, rectangular tubes, and other customized structural sections.

4. What information is required before quotation?

Customers should provide tube dimensions, wall thickness range, raw material specifications, annual production capacity, factory layout, preferred production speed, and automation requirements.

5. Can the production line be customized?

Yes.

The complete line can be customized according to production capacity, product specifications, workshop layout, automation level, inspection equipment, and downstream packaging requirements.