HIGH FREQUENCY TUBE MILL
HIGH FREQUENCY TUBE MILL

Aogang Machinery Co., Ltd.

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Square Tube Mill
square tube making machine
Square Tube Mill | Direct Forming Pipe Machine
square tube mill direct forming pipe machine
automatic square tube mill production line
Square Tube Mill
square tube making machine
Square Tube Mill | Direct Forming Pipe Machine
square tube mill direct forming pipe machine
automatic square tube mill production line

Square Tube Mill Machine

Aogang Square Tube Mill Machine is a high-efficiency, energy-saving, and intelligent pipe manufacturing solution designed for direct forming of square and rectangular tubes from steel strip. By eliminating the traditional “round forming → reshaping” process, it significantly improves production efficiency, reduces material waste, and lowers overall production costs. The production line features a high level of automation, enabling fully automatic operation from uncoiling, forming, welding, sizing, cutting, to final packaging. With advanced control systems and stable performance, it ensures consistent product quality and reliable operation.

As one of Aogang's Tube Mill Line solutions, the Square Tube Mill Machine is designed for efficient production of high-quality square and rectangular tubes.


Product Description

Aogang Square Tube Mill Machine– Key Advantages


1. Direct Forming Technology


Steel strips are directly formed into square or rectangular tubes, eliminating the traditional “round forming → reshaping” process.

Value:

Simplifies the production flow, significantly improves efficiency, and reduces material waste compared to conventional methods.


2. High Automation & Intelligent Control


The entire line operates automatically from uncoiling to packaging, integrated with an intelligent mold-changing system.

Value:

Reduces labor dependency, ensures stable operation, and enables fast specification changes for flexible production.


3. High Precision & Stable Quality


Advanced forming and welding technology ensures accurate dimensions, sharp corners, and consistent weld seams.

Value:

Delivers high-quality MS pipes, GI pipes, and high-strength steel tubes suitable for construction, machinery, furniture, and industrial applications.


4. Energy Efficiency & Cost Reduction


Optimized forming and welding processes minimize energy consumption and material loss.

Value:

Lowers overall production costs while maintaining high output and performance.


5. Flexible Multi-Specification Production


Supports fast changeovers and efficient production of different sizes, including small-batch orders.

Value:

Improves production flexibility, reduces downtime, and enhances responsiveness to market demand.


Square Tube Straight Forming Unit


The Square Tube Straight Forming Unit adopts advanced straight-forming technology, allowing direct shaping and rapid adjustment between different specifications.


Equipped with a highly automated intelligent mold-changing system, it enables efficient multi-size production with minimal manual intervention. This makes it especially suitable for manufacturers handling diverse orders, including small-batch and customized production.


Core Benefits:


  • Faster specification switching

  • Reduced tooling and labor costs

  • Improved production efficiency

  • Lower overall investment and operating costs


Square Tube Mill Model Range


Aogang offers a range of square tube mill models for different tube sizes and wall thicknesses. The production line can produce square tubes from 20 × 20 mm to 500 × 500 mm, while standard models cover different size and thickness ranges. Customized production lines are also available for specific tube sizes, wall thicknesses, and production requirements.


  • LW400: 30 × 30 – 100 × 100 mm | Thickness: 1.0 – 5.0 mm

  • LW600: 70 × 70 – 150 × 150 mm | Thickness: 1.5 – 6.0 mm

  • LW800: 80 × 80 – 200 × 200 mm | Thickness: 2.0 – 8.0 mm

  • LW1000: 100 × 100 – 250 × 250 mm | Thickness: 3.0 – 10.0 mm

  • LW1200: 120 × 120 – 300 × 300 mm | Thickness: 4.0 – 12.0 mm

  • LW1600: 180 × 180 – 400 × 400 mm | Thickness: 5.0 – 14.0 mm

  • LW2000: 250 × 250 – 500 × 500 mm | Thickness: 5.0 – 20.0 mm


Recommended FAQ Version


1. What are the advantages of direct forming technology?


Aogang direct forming technology shapes steel strips directly into square or rectangular tubes without the traditional round-to-square process. This reduces edge wear, improves corner accuracy, ensures more uniform wall thickness, and helps save raw material during production.


2. How does the machine control precise R-angles?


The square tube mill machine uses heavy-duty sizing stands and optimized roller pass design to control deformation during forming. This ensures stable and precise R-angles that meet structural steel pipe production standards.


3. How long does size changeover take?


Aogang square tube mill machines use a quick-change roll system to reduce changeover time. Compared with traditional spacer adjustment methods, the roller replacement process is faster and helps improve production efficiency.


4. Can one production line make both square and rectangular tubes?


Yes. The same direct forming tube mill line can produce both square and rectangular steel pipes by adjusting the roller gap within the machine’s production range.


Aogang Square Tube Mill
Square Tube Mill | Direct Forming Pipe Machine

Product Advantages

Material Savings in Square Pipe Production

Reduces material consumption compared to traditional forming methods (typically up to 5%, depending on specifications).

recise Corner Control for Square Tubes

Ensures precise corner radius for excellent appearance and enhanced strength.

Quick Size Changeover of Tube Mill

Supports multi-size, small-batch production with minimal or no roller replacement.

ntelligent Tube Mill Mold Change

Electric adjustment with intelligent control enables one-touch mold change and faster setup.

Cost-Effective Investment

One set of rollers covers a wide range of specifications, reducing tooling and storage costs.

Enhanced Structural Strength

Optimized forming and welding ensure stable dimensions and higher overall tube strength.

Square Tube Mill Machine Technical Parameters

Customized as per customer requirements
Finished Pipe SpecificationsSquare Tube Size20 mm × 20 mm – 500 mm × 500 mm
Rectangular Tube Size20 mm × 30 mm – 500 mm × 600 mm
Pipe Wall Thickness1.5 mm – 16.0 mm (customizable)
Fixed Length6 m – 12.5 m (customizable, special lengths available)
Equipment PerformanceProduction Speed10 m/min - 80 m/min (Up to 130 m/min for specific models)
Forming MethodHigh-frequency welded forming
Cutting MethodFlying saw cutting / Saw blade cutting
Raw Material SpecificationsStrip Width Range60 mm – 1600 mm (customizable)
Strip Thickness Range1.5 mm – 16.0 mm (customizable)
MaterialCarbon steel, galvanized steel, stainless steel
Other ParametersOperation ModeAutomatic control / PLC + touch screen


Square Tube Mill Machine Video Showcase

These video cases showcase real installation and commissioning processes, allowing you to directly see Aogang’s extensive industry experience, professional service, and the stable performance of our equipment. Our production lines can be customized to meet customer requirements, offering one-stop solutions.

Aogang Square Tube Mill Machine Video
Aogang  Square Tube Making Machine
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