Direct Square Forming Tube Mill
Specialized in Pipe Production Line
More than 23 years...
High Frequency (HF) longitudinal welded pipe production line / pipe making machine / tube mill / Direct square forming welded pipe is designed to produce square and rectangular tubes with a maximum wall thickness of 22.0mm and a production size range of 80x80mm-600x600mm.
Direct Square Forming Tube Mill
Compare to Round-to-Square (RS) forming technique, the Flexible Cold Forming (FCF) creates better outer edge and smaller inner arc for the cross section of the tube, and the brim is flatter with more regular outlook. With our new DSS-3 technique, only one set of rollers is needed for the entire mill with no need for any roller or spacer replacement, which achieves full-automatic adjustment for roller positions, significantly increasing production efficiency and reducing labor cost and risk of hazard.
Scrolling Up→ Uncoiling → Shear and Welding→ Accumulator→ Forming→ HF induction Welding→ External Burr Removing→ Cooling → Sizing→ Flying Saw → Run Out Table →Inspecting→ Packing→ Warehouse
Oblique Roll Stand
To ensure the angle control of forming R-angle, solving the problem of uneven R-angle in traditional direct square forming.
Automatic Adjustable Horizontal Stands
Making it easier when changing rollers from the side of stands since the lower rollers do not need to be adjusted.
Product Information
| 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 | 320mm-2400mm |
| Strip Steel Thickness | Max 22mm |
|
Strip Steel Coil |
Inner diameter：Φ 610mm-760mm Outer diameter：Φ 1300mm-230mm Weight: Max=8-30 T |
| Square Tube | 80x80mm-600x600mm |
| Thickness | 1.2-22.0 mm |
| Length | 6-12 m |
| Forming Speed | 20-100 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 | 400kw-2500 kw |
| Production Line Size | 78m(length) ×6m (width) -400m(length) ×40m (width) |
| Color of Machines | Blue or customized |
| Yearly Out-put | About 40,000 tons |
High Efficiency
Fully automatic adjustment.
Low Wastage
Roller saving and low production cost.
High Accuracy
Diameter error is only 0.5/100 of the pipe OD.
Product Application
We can design and manufacture pipe making machine according to customers’ requirements.
New Energy Industry
High-speed Guardrail
Architectural Decoration Industry
Everything you need to create a steel pipe production line
Our Certificate
Our Company
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.
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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 |
|
|
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 |
|
|
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 |
|
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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 |
|
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ERW377 |
Ф165-Ф377 |
130×130-280×280 |
4.0-14.0 |
35 |
|
|
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 |
Read More |
|
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 |
Read More |
|
SS325 |
Ф219-Ф325 |
170×170-250×250 |
2.0-8.0 |
3 |
Read More |
|
SS426 |
Ф219-Ф426 |
170×170-330×330 |
3.0-10.0 |
3 |
Read More |
|
SS508 |
Ф273-Ф508 |
210×210-400×400 |
4.0-12.0 |
3 |
Read More |
|
SS862 |
Ф508-Ф862 |
400×400-600×600 |
6.0-16.0 |
2 |
Read More |
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