3inch 76mm HF Welding Tube Mill

5.FAQ – 3 Inch (76mm) HF Welding Tube Mill

Q1: What type of pipes can this tube mill produce?
A1: It can produce round tubes (Ø21.3mm–Ø76mm), as well as square (20×20mm–60×60mm) et rectangular hollow sections (15×25mm–40×80mm).

Q2: What is the wall thickness range of the tubes?
A2: The tube mill supports 1.0mm to 4.0mm for round pipes, and up to 3.5mm for square and rectangular pipes.

Q3: What is the production speed?
A3: The line speed can reach up to 90m/min, depending on pipe size and material.

Q4: What raw materials are suitable for this machine?
A4: It is designed for hot rolled steel, cold rolled steel, and galvanized steel after slitting.

Q5: Does the machine come with a packing system?
A5: Yes, the line includes a conveyor, roll-out table, and automatic packing & strapping machine for efficient bundle preparation.

Q6: Can the tube mill be customized?
A6: Absolutely. We provide custom coil width, thickness, and automation solutions to match your production requirements.

6.The Technical Flow of the Production line

{Steel Tape}→→ Double-head Uncoiler→→Strip-head Cutter and welder→→Cage Loop→→Forming section（Flattening unit +Main driving unit +Forming unit +Guide unit +High frequency induction welding unit +squeeze roller）+ De-burr frame →→Cooling unit →→ Sizing unit and straightener →→Friction saw →→ Run-out table

Tube Application Scope:

• Furniture and decoration industry

• Greenhouse structures

• Mechanical frameworks

• Fluid and gas pipelines

• Automotive components

Production Notes:

• • Maintain alignment during forming to avoid weld defects.

  • Ensure clean, dry steel strips for consistent welding.

  • Adjust HF welder power according to wall thickness.

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Packaging and Transportation:

• Machine modules are film-wrapped and fixed in steel frames.

• Electrical and hydraulic parts are packed in moisture-proof wooden boxes.

• Each shipment includes a user manual, wiring diagram, and spare parts list.

• Export standard compliant with CE, ISO, and customer destination customs requirements.