More than 23 years...
High Frequency (HF) longitudinal welded pipe production line / pipe making machine / tube mill is designed to produce welded pipes of 114mm to 820mm in OD and with a maximum wall thickness of 22mm, as well as corresponding square and rectangular pipe.
Our advanced tube mill utilizes the innovative ZTF forming technology, which divides the forming section into a breakdown section and a fin-pass section. The ZTF technology is specifically implemented in the breakdown section of our tube mill, enabling the production of a wide range of round pipes with a single set of rollers (comprising approximately 60% of the entire mill rollers). This unique feature of our tube mill dramatically reduces the need for frequent roller changes. When switching to different sized pipes, only the rollers in the fin-pass and sizing sections of our tube mill require replacement. This approach results in significant savings on roller costs and a considerable increase in productivity.
The latest generation ZTF technique (ZTF4), integrated into our tube mill, allows for fully automatic adjustment of roller positions in the breakdown section. This minimizes or eliminates the need for manual adjustments, significantly improving productivity while reducing labor, maintenance costs, and potential hazards. The control system of our tube mill employs close-loop servo control to ensure the accuracy and stability of roller positions, guaranteeing consistent and high-quality pipe production.
Scrolling Up→ Uncoiling → Shear and Welding→ Accumulator→ Forming→ HF induction Welding→ External Burr Removing→ Cooling → Sizing→ Flying Saw → Run Out Table →Inspecting→ Packing→ Warehouse
Line Component | Uncoiler Shear & end welder Accumulator Forming & sizing machine H.F welder Flying saw Stacking & packing machine |
Special | Hydraulic testing machine, intermediate frequency annealing machine, ultrasonic flaw detection machine, etc. |
Material |
High strength steel, Low carbon steel, GI, etc |
Strip Steel Width | 90 mm- 400mm |
Strip Steel Thickness | 1.2 - 4.0mm |
Strip Steel Coil |
Inner diameter:Φ 508-610 mm Outer diameter:Φ Max.2000 mm Weight: Max=4.0 T |
Round Pipe | Φ114-Φ720 mm |
Thickness | 1.5-22 mm |
Square & Rectangular Tube | 80x80-600x600mm |
Thickness | 1.2-4.0 mm |
Length | 6-12 m |
Forming Speed | 20-65 m/min (Attn: Max pipe diameter thickness doesn't correspond with the max speed) |
Feeding Direction | Left feeding (or right feeding), option by customer. |
Electric Installed Capacity | Approx. 600 kw |
Production Line Size | 70×6 m |
Color of Machines | Blue or customized |
Yearly Out-put | About 40,000 tons |
Line speed can be up to 120m/min.
Low unit wastage and low production cost.
Diameter error is only 0.5/100 of the pipe OD.
Shijiazhuang Zhongtai Pipe Technology Development Co., Ltd.was established in 2000 locating in Shijiazhuang, the capital city of Hebei Province. The factory covers an area of 67,000 square meters. Our main products consist high frequency straight welded pipe production line, cold roll steel production line, multi-function cold roll steel/welded pipe production line, slitting line production line, stainless steel pipe mill, various pipe mill auxiliary equipment and rollers, etc.
ERW TUBE MILL LINE |
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Model |
Round pipe mm |
Square pipe mm |
Thickness mm |
Working spead m/min |
|
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 |
|
ERW50 |
Ф20-Ф50 |
15×15-40×40 |
0.8-3.0 |
120 |
|
ERW76 |
Ф32-Ф76 |
25×25-60×60 |
1.2-4.0 |
120 |
|
ERW89 |
Ф42-Ф89 |
35×35-70×70 |
1.5-4.5 |
110 |
|
ERW114 |
Ф48-Ф114 |
40×40-90×90 |
1.5-4.5 |
65 |
|
ERW140 |
Ф60-Ф140 |
50×50-110×110 |
2.0-5.0 |
60 |
|
ERW165 |
Ф76-Ф165 |
60×60-130×130 |
2.0-6.0 |
50 |
|
ERW219 |
Ф89-Ф219 |
70×70-170×170 |
2.0-8.0 |
50 |
|
ERW273 |
Ф114-Ф273 |
90×90-210×210 |
3.0-10.0 |
45 |
|
ERW325 |
Ф140-Ф325 |
110×110-250×250 |
4.0-12.7 |
40 |
|
ERW377 |
Ф165-Ф377 |
130×130-280×280 |
4.0-14.0 |
35 |
|
ERW406 |
Ф219-Ф406 |
170×170-330×330 |
6.0-16.0 |
30 |
|
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 |
|
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 |
Read More |