Double-Sided CO₂ / MIG Welding Machine

The 2026 New High-Precision Seam-Welded Square & Rectangular Tube Making Machine is engineered for manufacturers who require high welding accuracy, strong seam integrity, and stable mass production.

Developed by CANGZHOU ZHONGTUO ROLL FORMING MACHINERY CO., LTD, this machine integrates double-sided synchronous welding, a rigid mold-fixing system, and advanced CO₂ / MIG welding technology, making it ideal for modern steel tube fabrication plants.

High-Speed Seam Welding Solution for Square & Rectangular Tubes

This machine is specifically designed for square and rectangular steel tubes that demand clean, uniform, and high-strength weld seams.

Unlike traditional single-side welding equipment, it adopts dual welding guns on both sides, enabling simultaneous welding.
As a result:

• Welding time is significantly reduced
• Seam symmetry and strength are improved
• Welding deformation is effectively minimized

Moreover, the fixed-mold welding structure ensures accurate tube positioning throughout the entire process.

Key Advantages of the Seam-Welded Tube Machine

Double-Sided Synchronous Welding

The machine uses two welding guns working simultaneously on both sides, which:

• Dramatically shortens welding cycles
• Enhances seam strength and penetration
• Ensures repeatable, stable welding quality

The seam-welded tube making machine can operate as:

• A standalone welding unit, or
• An integrated part of a complete tube mill production line

Thanks to its industrial-grade structure and stable control system, it supports long-term continuous operation with consistent weld quality.

High-Precision Mold-Fixing Structure

With customized welding molds:

• Tubes are firmly clamped during welding
• Weld seams remain straight and uniform
• Dimensional accuracy is strictly controlled

Therefore, finished tubes meet high industrial standards without rework.

Powerful CO₂ / MIG Welding System

To meet heavy-duty production demands, the machine is equipped with:

• 6 sets of 350A CO₂ / MIG welding machines
• Welding length range from 500 mm to 3500 mm
• Stable arc performance for continuous operation

Fully Customized Manufacturing

As a direct manufacturer, Zhongtuo provides customized solutions based on:

• Tube size and cross-section
• Required welding length
• Production capacity
• Factory layout and automation level

Consequently, each machine is optimized for the customer’s real production needs.

Technical Specifications of custom square rectangular tube welding machine

Item	Specification
Machine Type	Seam-Welded Square & Rectangular Tube Making Machine
Welding Method	CO₂ / MIG Welding
Welding Guns	Double-sided, synchronous
Welding Power	6 × 350A welding machines
Welding Length	500 – 3500 mm
Applicable Profiles	Square & Rectangular Tubes
Power Supply	380V / 50Hz
Gas Source	Carbon Dioxide (CO₂)
Control Type	Industrial electrical control system
Customization	Available

Installation Options

• On-site installation by Zhongtuo engineers
• Remote installation guidance with full documentation

Why Choose Zhongtuo Seam-Welded Tube Machines?

With over 18 years of manufacturing experience, Zhongtuo offers:

• Factory-direct pricing
• Strict quality control
• Professional customization capability
• Reliable global after-sales service

CTA

📩 Contact us now to get a customized seam-welded tube making solution and a competitive quotation.