The Turks Head square tube rolling mill, also known as the Turks Head round-to-square welded pipe mill, is a high-frequency straight seam welded pipe production line equipped with multiple four-roller Turks Head main machines at the rear. It first forms and welds round tubes, then uses multiple Turks Head four-rollers to extrude the round tubes from all sides, gradually pushing and rolling them into square or rectangular tubes. This is a round-to-square process, distinct from direct square forming mills.
Turkish head push-square tube making machine: First, it forms and welds a round tube, and then uses a four-roll Turkish head to extrude and push the round tube into a square or rectangular tube. In the industry, this is called “round to square”, which is different from the direct square welded pipe production line that directly bends the strip to form a square.

| Product & Yield | Round Pipe | 10mm-89mm |
| Square & Rectangle Tube | 10x10mm-70x70mm | |
| Length | 6-12 m | |
| Production Speed | 50-120 m/min | |
| Production Capacity | 15000 ton | |
| Consumption | Mill Installed Capacity | 300-750 kw |
| Line Area | 40×5m-80×10m | |
| Worker | 6-8 workers | |
| Raw Material | Material | ST-37 ST-52 X42 X48 X52 X60 X70 |
| Width | 120mm-280mm | |
| Coil ID | Φ470~508mm | |
| Coil OD | Φ1000~1800mm | |
| Coil Weight | 2-5 ton |
Advantages: The same forming and welding unit can produce round tubes and square/rectangular tubes by switching the Turkish head rolls; compared with direct square forming, the wall thickness is reduced less and the corners are filled better, making it suitable for building and steel structure square tubes;
ZTZG’s long history and professional R&D capability in tube mill industry, it is known for its excellent product quality. we can design and manufacture pipe making machine according to customers’ requirements, and provide regular technical information and technical training support.
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ERW TUBE MILL LINE |
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Model |
Round pipe mm |
Square pipe mm |
Thickness mm |
Working spead m/min |
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ERW20 |
Ф8-Ф20 |
6x6-15×15 |
0.3-1.5 |
120 |
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ERW32 |
Ф10-Ф32 |
10×10-25×25 |
0.5-2.0 |
120 |
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ERW50 |
Ф20-Ф50 |
15×15-40×40 |
0.8-3.0 |
120 |
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ERW76 |
Ф32-Ф76 |
25×25-60×60 |
1.2-4.0 |
120 |
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ERW89 |
Ф42-Ф89 |
35×35-70×70 |
1.5-4.5 |
110 |
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ERW114 |
Ф48-Ф114 |
40×40-90×90 |
1.5-4.5 |
65 |
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ERW140 |
Ф60-Ф140 |
50×50-110×110 |
2.0-5.0 |
60 |
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ERW165 |
Ф76-Ф165 |
60×60-130×130 |
2.0-6.0 |
50 |
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ERW219 |
Ф89-Ф219 |
70×70-170×170 |
2.0-8.0 |
50 |
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ERW273 |
Ф114-Ф273 |
90×90-210×210 |
3.0-10.0 |
45 |
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ERW325 |
Ф140-Ф325 |
110×110-250×250 |
4.0-12.7 |
40 |
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ERW377 |
Ф165-Ф377 |
130×130-280×280 |
4.0-14.0 |
35 |
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ERW406 |
Ф219-Ф406 |
170×170-330×330 |
6.0-16.0 |
30 |
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ERW508 |
Ф273-Ф508 |
210×210-400×400 |
6.0-18.0 |
25 |
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ERW660 |
Ф325-Ф660 |
250×250-500×500 |
6.0-20.0 |
20 |
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ERW720 |
Ф355-Ф720 |
300×300-600×600 |
6.0-22.0 |
20 |
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STAINLESS STEEL PIPE PRODUCTION LINE |
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Model |
Round pipe mm |
Square pipe mm |
Thickness mm |
Working speed m/min |
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SS25 |
Ф6-Ф25 |
5×5-20×20 |
0.2-0.8 |
10 |
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SS32 |
Ф6-Ф32 |
5×5-25×25 |
0.2-1.0 |
10 |
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SS51 |
Ф9-Ф51 |
7×7-40×40 |
0.2-1.5 |
10 |
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SS64 |
Ф12-Ф64 |
10×10-50×50 |
0.3-2.0 |
10 |
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SS76 |
Ф25-Ф76 |
20×20-60×60 |
0.3-2.0 |
10 |
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SS114 |
Ф38-Ф114 |
30×30-90×90 |
0.4-2.5 |
10 |
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SS168 |
Ф76-Ф168 |
60×60-130×130 |
1.0-3.5 |
10 |
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SS219 |
Ф114-Ф219 |
90×90-170×170 |
1.0-4.0 |
10 |
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SS325 |
Ф219-Ф325 |
170×170-250×250 |
2.0-8.0 |
3 |
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SS426 |
Ф219-Ф426 |
170×170-330×330 |
3.0-10.0 |
3 |
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SS508 |
Ф273-Ф508 |
210×210-400×400 |
4.0-12.0 |
3 |
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SS862 |
Ф508-Ф862 |
400×400-600×600 |
6.0-16.0 |
2 |
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