ERW φ114 HF Welding Tube Mill | High-Frequency Pipe Mill

Sep . 26, 2025 00:00

Introduction
The ERW φ114 HF Welding Tube Mill is a high-frequency pipe production line designed for manufacturing steel tubes with a maximum diameter of 114mm. Equipped with advanced forming technology and solid-state HF welding, this tube mill ensures precise shaping, strong weld seams, and consistent production quality. It is widely used in construction, mechanical structures, oil & gas transportation, furniture, and automotive applications.

ERW HF Welding Tube Mill – Main Equipment and Functions

• Un-Coiler: Holds and unwinds steel coils, feeding the strip smoothly into the production line.
• Shear and Welder: Cuts and welds coil ends together for continuous, uninterrupted production.
• Horizontal Spiral Accumulator: Stores strip material and balances coil changeovers to maintain steady line speed.
• Forming and Sizing Machine: Gradually bends the strip into a tube and ensures precise sizing and roundness.
• Rollers (Material: D3): Provide high wear resistance and accuracy for stable forming and long service life.
• 300kW Solid State HF Welder: Delivers high-frequency energy for strong, clean, and efficient tube seam welding.
• Electric Control System: Manages and automates the entire line, ensuring accuracy, stability, and safety.
• Cold Cutting Saw: Cuts tubes to the required length with smooth, burr-free edges.
• Run Out Table & Turn Over Device: Transfers, flips, and organizes finished tubes for easy handling.
• Packing Machine: Bundles and straps pipes for secure storage and safe transportation.

Advantages of φ114 HF Welding Tube Mill

High Productivity – Stable, continuous production with fast line speed.
Strong Weld Quality – High-frequency welding delivers durable and clean seams.
Energy Saving – Efficient HF welder reduces power consumption.
Versatility – Produces round, square, and rectangular steel tubes.
User-Friendly – PLC automation improves operation and reduces downtime.
Durability – Robust machine structure with long service life.

Typical Applications

Construction Industry – Structural pipes, scaffolding, and steel frameworks.
Oil & Gas – Low-pressure fluid transport pipes.
Furniture Industry – Steel frames, bed structures, and tables.
Automotive & Mechanical – Exhaust pipes, chassis parts, and machinery components.

Why Choose This Tube Mill?

The ERW φ114 HF Welding Tube Mill combines advanced technology, robust design, and high-frequency welding to deliver exceptional productivity and pipe quality. Compared with conventional mills, it offers faster speed, stronger welds, lower energy consumption, and higher flexibility. It is an ideal solution for manufacturers looking to upgrade their production capacity and reduce operating costs.

Technical Specifications (Customized for Customer)

Items	Specification
Raw Material
Strip Materials	Hot-rolled strip steel & Cold-rolled strip steel
Grades	σb ≤ 520MPa, σs ≤ 340MPa
Width	120mm ~ 360mm
Thickness	1.0mm ~ 3.0mm
Coil I.D.	Φ480mm ~ Φ520mm
Coil O.D.	Φ800mm ~ Φ1800mm
Max. Coil Weight	5T
Finished Pipe
Pipe O.D.	Φ38mm ~ Φ114mm
Square Pipe (mm)	Φ30 × 30mm ~ Φ90 × 90mm
Rectangular Pipe (mm)	Φ40 × 20mm ~ Φ100 × 80mm
Thickness	1.0mm ~ 3.0mm

round pipe

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