FFX Technology Tube Mill Line

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FFX Technology Tube Mill Line

The FFX Technology Tube Mill Line incorporates the internationally advanced FFX forming process, which offers a range of advantages including stable forming, excellent surface quality of steel tubes, and easy to change specifications. This forming machine is divided into two sections: rough forming and fine forming. The rolls in the rough forming section can accommodate various specifications of steel tubes, reducing the number of rolls required by 30% to 60% compared to conventional roll forming units. This not only saves on roll inventory but also minimizes roll changeover and adjustment time, significantly enhancing production efficiency. Additionally, the use of segmented rolls instead of integral rolls reduces the need for spare parts storage.


Working Principle of Pipe Making Machine

The FFX (Flexible Forming and expanding) pipe making machine is an advanced tube forming system that utilizes a single set of universal forming rolls to produce different pipe sizes without roll changing. It significantly improves production efficiency, reduces downtime, and enhances dimensional accuracy.


Process Overview:

  1. Uncoiling & Shearing
    Steel coils are uncoiled and cut into strips with the required width.

  2. Strip Entry & Welding Preparation
    The strip passes through a shear and end welder, then enters the accumulator or loop bridge for continuous feeding.

  3. Flexible Forming (FFX System)

    • The strip is gradually formed into a round tube by universal shared rolls, not fixed per size.

    • Roll stands automatically adjust position via servo motors or hydraulic controls to match the desired pipe diameter.

  4. High-Frequency Welding (ERW)
    The edges of the formed tube are heated by high-frequency induction and pressed together to form a solid longitudinal weld seam.

  5. Weld Seam Scarfing & Cooling
    Internal and external weld beads are removed. The tube is then air or water cooled.

  6. Sizing and Straightening
    The tube enters a series of sizing stands to achieve final outer diameter and roundness. Straightening follows.

  7. Cutting to Length
    A flying saw or cold saw cuts the pipe to the required length without stopping the line.

  8. Output & Stacking
    Finished pipes are conveyed to a run-out table and bundled for packaging.


Key Features of FFX Technology:

FeatureDescription
No Roll Change RequiredA single roll set forms multiple pipe sizes, minimizing downtime.
CNC Servo AdjustmentFully automatic, recipe-based setup for fast size changes.
High Dimensional AccuracyConsistent forming force and better roundness control.
Material SavingsReduced strip edge trimming and improved yield.
High-Speed ProductionUp to 120m/min depending on pipe size and model.


Parameter Display

Product Comparison Table

Itemφ191mm FFX Tube Millφ219mm FFX Tube Millφ406mm FFX Tube Mill
Tube Diameter Rangeφ102 – φ191 mmφ114 – φ219 mmφ219 – φ406 mm
Wall Thickness Range2.0 – 6.0 mm2.5 – 8.0 mm3.0 – 12.7 mm
Raw MaterialsLow-carbon steel, low-alloy, high-strengthLow-carbon steel, low-alloy, high-strengthCarbon steel
Forming Speed15 – 50 m/min10 – 45 m/min10 – 35 m/min
Typical ApplicationsFurniture pipes, gym equipment, racksStructural pipes, gas/water pipelines, machineryOil & gas pipes, piling, heavy structural tubing
Key AdvantagesHigh-speed, flexible forming, cost-efficientWider pipe specs, thick-wall forming capabilityIndustrial-grade capacity, heavy-wall tube forming


Application-Oriented Selection Guide

Application TypeRecommended ModelWhy
Furniture & Light Mechanical Tubingφ191mmIdeal for small to medium-diameter tubes, efficient for thin-wall pipes
Building & Infrastructure Tubingφ219mmBalances strength and size, good for scaffolding, fluid pipes, structure
Oil & Gas Pipeline / Pilingφ406mmHeavy-duty pipe production, thick wall, high welding power
General Manufacturing (Automotive, etc.)φ191mm / φ219mmDepending on pipe size; both support high precision and stable forming
High-Strength Structural Pipe Demandφ406mmBest for large-diameter, high-strength applications


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