Tube Mill Roll Tooling & Flying Cold Saw
ERW Tube Mill Machinery Lines
ERW & HF tube mill lines, tube mill roll tooling and flying cold saws — machined and assembled in our own workshops.
Trusted by pipe makers in 15+ countries.

ERW Tube Mill Line
Uncoiler to cold saw cut-off — each station matched to your pipe, wall and line speed
Explore Tube Mill LineFlying Cold Saw Cut-Off
Burr-free cold cutting at line speed · no heat-affected zone, no second trim · built in our own workshop
Explore Flying Cold SawTube Mill Roll Tooling & Rolls
Pass-line design · CNC machining · vacuum heat treatment — all in our own shop
Explore Pipe Mill RollerWhy Pipe Makers Choose Comsco
Four reasons buyers come back.
Built module by module
The roll tooling, the shear welder and the flying cold saw are each built in their own workshop, under one management. In a COMSCO line the modules are designed to work with each other — a change in wall thickness does not become an argument between several suppliers.
HG16–HG355, configured to your pipe
From ø8 mm furniture and bicycle tube to ø355 mm pipe, standard models plus builds to your own requirement. A line is customized to your wall thickness, line speed and end quality — not simply sold from a list.
A single station is also a quote
You do not have to buy the whole line. If the sizing stand or the cut-off is what is costing you money, that is what we quote. Based on rich hands-on experience in this field, we can also help you optimize your existing pipe mill lines — bringing cost down and winning more market potential.
150+ mills in 15+ countries
Mostly Southeast Asia, the Middle East, Africa and South America — and about half of them came back for a second set of rolls. Blades, impeder cores and scarfing knives ship from stock, so a stopped line is a courier question rather than a production-planning one.
Machines In Action
Real footage from our workshops and customers' lines — no renders, no stock clips.



Notes From The Workshop
Practical writing on roll tooling, cut-off technology and tube mill lines.

ERW Weld Seam Defects: A Diagnostic Order That Saves Time
A tube mill with a weld problem usually gets adjusted in the order the symptoms appear, and the symptoms appear at the…
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HF Weld Power and Coolant: Setting Up for Thin Wall
Thin wall is where a tube mill stops being a forming machine and starts being a heat balance. Below about 1.2 mm…
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Tube Mill Roll Changeover: Where the Hours Actually Go
Ask a mill manager how long a size change takes and the answer is usually a number with a shrug: “about a…
Read moreFrequently Asked Questions
Quick answers before you send an inquiry.
What is an ERW tube mill?
An ERW (Electric Resistance Welded) tube mill is a machine that forms steel strip into tubes and welds the seam using high-frequency current. It is widely used for producing round, square and rectangular steel pipes.
What industries use tube mill pipes?
Tube mill pipes are commonly applied in construction and scaffolding, automotive, oil & gas, furniture, agricultural greenhouses and fluid transmission projects — thanks to their cost-effectiveness and durability.
How do I choose the right tube mill size?
The right machine depends on your pipe diameter, wall thickness, material type and production capacity requirements. COMSCO builds complete lines from HG16 (8 mm) up to HG355 (355 mm), and our engineers will help you select the most suitable configuration.
What is the difference between a tube mill and a pipe mill?
Both terms are often used interchangeably. In general, tube mills focus on smaller precision pipes, while pipe mills are usually for larger-diameter applications.
Does COMSCO provide installation and after-sales service?
Yes. COMSCO offers installation guidance, commissioning, operator training, spare parts supply and long-term technical support, ensuring your production runs smoothly.
Need roll tooling, a flying cold saw, or a complete tube mill line?








