Hebei Tengtian Welded Pipe Equipment Manufacturing Co., Ltd.
republic of liberia WG377(DLW1200×12.7-300X300X12.7) Multi-functional Cold Bending Steel Welded Pipe Production Line
Category:
republic of liberiaDifferent size pipe mill
Product Description
Brief introduction of ERW high precision tube rolling mill
DLW1200×12.7 multi-functional cold bending steel welded pipe production line is used to produce square pipes and rectangular pipes which both conform with international standard GB/T6728, as well as welded circular pipes that conform with international standard GB/T3091 and GB/T13793. Steel strip is formed into open pipes in forming device. Pipes are welded into straight-seam ones by high frequency, which are cooled, and then shaped and straightened in sizing device. The circular, square and rectangular pipes with needed size are produced, which meet up to Chinese National Standards.
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(1)workshop size： |
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220m×18m×＞8m (from crane rail to the ground) |
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Crane:It is recommended to use one 25t and 10t crane respectively |
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(2)Electricity, cool and air |
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Installed electrical capacity |
3500KVA approximately |
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Coolant capacity |
40t/h |
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Compressed air volume |
4m3/min 4－7Kg/cm2 |
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(3)The steel coil specification |
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Inner diameter |
Φ610－φ760mm |
Material |
Low-carbon low-alloy steel: σb≤520mpa，σs≤345mpa |
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Outer diameter |
Φ1100－φ2000mm |
Width |
400－1200mm |
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Coil weight |
≤25t |
Thickness |
4.0－12.7mm |
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(4)Pipe production range |
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Square/rectangular pipe |
Width: 100－300mm Height: 100－350mm |
thickness |
4.0－12.7mm |
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Round pipe |
Φ219-Φ377mm |
thickness |
4.0－12.7mm |
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(5).Production process |
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Feeding → uncoiling → straightening → clamped for leveling → cutting for butt welding → looping (horizontal accumulator) → forming, welding, cooling and sizing → cutting with flying saw → conveying to roll table →packing → entry of finished products into warehouse |
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Production Process
Scroll up → Uncoil → Flattening → End Shear & Butt Welding → Accumulator → Forming → High-frequency induction welding→ Removing external burr → Cooling → Sizing → Cutting → Checking & Collecting → Accessing Warehouse
Production flow chart:
ERW Tube Mill Other Model
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Model |
Diameter Range |
Pipe Thickness |
Molding speed(m/min) |
Motor Power（KW） |
Mechanical |
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HG20 |
8-20MM |
0.3-1MM |
30-120 |
55 |
7×50 |
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HG32 |
12-32MM |
0.3-2.0MM |
30-120 |
75 |
7×50 |
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HG50 |
16-50MM |
0.8-2.5MM |
30-110 |
110 |
7×60 |
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HG60 |
20-60MM |
0.8-3MM |
30-100 |
132 |
7×65 |
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HG76 |
12-76MM |
1-3MM |
30-100 |
320 |
8×80 |
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HG89 |
32-89MM |
1-4MM |
30-80 |
350 |
8×80 |
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HG114 |
45-114MM |
1.5-5.0MM |
30-60 |
400 |
10×100 |
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HG165 |
60-165MM |
3-7MM |
30-50 |
600 |
10×110 |
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HG219 |
114-219MM |
4-8MM |
20-40 |
800 |
12×150 |
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HG273 |
114-273MM |
4-10MM |
15-30 |
1000 |
18×160 |
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HG325 |
165-325MM |
4-12MM |
10-30 |
1200 |
18×180 |
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HG426 |
165-426MM |
4-16MM |
8-25 |
1400 |
18×180 |
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HG508 |
219-508MM |
4-20MM |
8-20 |
2000 |
21×180 |
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