Welded pipe & tube mill manufacturer since 2000 · Botou, China
Welded Pipe Making Machines & HF Tube Mill Lines
Cangzhou Zhongtuo Roll Forming Machinery Co., Ltd. designs and builds HF welded pipe production lines, stainless steel precision welded pipe lines, pipe moulds and forming rollers — from uncoiler to runout table.
- HG25–HG165Pipe mill series range
- Round · Square · OvalPipe sections built on our lines
- Since 2000Manufacturing pipe machinery
- 22,000 m²Workshop & machining base

Complete ERW tube mill line, workshop assembly
Selection Guide
Select your tube mill by pipe size
Diameter figures are the ones published for that series. Every line is built around your own section and profile — send us the drawing and we confirm the exact forming range before quotation.
Product Lines
Pipe Making Production Lines

HG32 Welded Pipe Machine
HG32 machine supports material thickness within 0.4-2.5mm, the diameter range from 10-45mm and the machine speed could make from 30…
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HG50 Welded Pipe Machine
Here I will introduce HG50 welded pipe machine cantilever type. This machine is good for those who needs make various types small p…
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HG76 Tube Mill
The feature of this HG76 Tube mill is high effective and durable. Specification range: 0.4mm wall, 40~50m/min.
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HG127 Tube Mill
The mill is intended for manufacturing of round pipe of Φ20mm-Φ127mm with thickness of 1.5mm–5.0mm from cold-rolled and hot-rolled …
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HG165 Tube Mill
The mill is intended for manufacturing of round pipe of Φ76 mm-Φ168 mm with thickness of 2.0 mm–5.0 mm from cold-rolled and hot-rol…
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Spiral Welded Tube Machine
Spiral welded pipe machine is used to big diameter pipes by spiral welding method.
View details →Auxiliary Equipment
Tube Mill Auxiliary & Pipe Processing Equipment
Roll Forming
Cold Roll Forming & Roofing Sheet Machines
Why Zhongtuo
From Plant Layout to Operator Training
Own factory, direct pricing
Machines are built in our own 22,000 m² workshop with large CNC machining and gantry processing centres — no middle layer.
Built to your pipe spec
Line configuration, roll pass design and cut-off are engineered around your pipe diameter, wall thickness, material and required output.
Plant layout & project planning
Whole-plant building evaluation, machine selection and layout design with a detailed report before you commit to the order.
Installation, training & spare parts
Commissioning support, advance training for local technicians and fixers, plus a continuing supply of moulds, rollers and replacement parts.
About Us
Pipe machinery manufacturer since 2000
Cangzhou Zhongtuo Roll Forming Machinery Co., Ltd. specialises in designing and manufacturing HF welded pipe lines, stainless steel precision welded pipe lines, and high-precision steel-plastic composite welded pipe lines. We also produce welded pipe moulds, forming rollers and shaped rollers as a complete series.
More about the company- Founded2000
- Workshop22,000 m²
- Fixed assetsRMB 50 million
- FocusHF welded pipe & tube mills
Technical Notes & News
Latest from the workshop
What Gets Checked Before a Tube Mill Leaves the Factory
Buying a tube mill is not like buying a standard product. The machine is built to your specification, it is t…
Read more →Laser Welding vs High-Frequency Welding in a Steel Tube Mill
High-frequency (HF) induction welding has been the standard way to close the seam on an ERW tube mill for dec…
Read more →Laser Welded Pipe Mill — Round 32-96 mm, Square up to 75x75 mm
A 60-type tube mill that closes the seam with a 6000 W fibre laser instead of high-frequency induction.
Read more →Tell us your pipe size — we’ll spec the line
Send your pipe diameter, wall thickness, material and target output. Our engineers reply with a machine configuration and quotation.