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WG377(DLW1200×12.7-300X300X12.7) Multi-functional Cold Bending Steel Welded Pipe Production Line

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WG377(DLW1200×12.7-300X300X12.7) Multi-functional Cold Bending Steel Welded Pipe Production Line

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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.

(1)workshop size：
220m×18m×＞8m (from crane rail to the ground)
Crane:It is recommended to use one 25t and 10t crane respectively
(2)Electricity, cool and air
Installed electrical capacity	3500KVA approximately
Coolant capacity	40t/h
Compressed air volume	4m³/min 4－7Kg/cm²
(3)The steel coil specification
Inner diameter	Φ610－φ760mm	Material	Low-carbon low-alloy steel: σb≤520mpa，σs≤345mpa
Outer diameter	Φ1100－φ2000mm	Width	400－1200mm
Coil weight	≤25t	Thickness	4.0－12.7mm
(4)Pipe production range
Square/rectangular pipe	Width: 100－300mm Height: 100－350mm	thickness	4.0－12.7mm
Round pipe	Φ219-Φ377mm	thickness	4.0－12.7mm
(5).Production process
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

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

Model	Diameter Range	Pipe Thickness	Molding speed(m/min)	Motor Power（KW）	Mechanical area （m³）
HG20	8-20MM	0.3-1MM	30-120	55	7×50
HG32	12-32MM	0.3-2.0MM	30-120	75	7×50
HG50	16-50MM	0.8-2.5MM	30-110	110	7×60
HG60	20-60MM	0.8-3MM	30-100	132	7×65
HG76	12-76MM	1-3MM	30-100	320	8×80
HG89	32-89MM	1-4MM	30-80	350	8×80
HG114	45-114MM	1.5-5.0MM	30-60	400	10×100
HG165	60-165MM	3-7MM	30-50	600	10×110
HG219	114-219MM	4-8MM	20-40	800	12×150
HG273	114-273MM	4-10MM	15-30	1000	18×160
HG325	165-325MM	4-12MM	10-30	1200	18×180
HG426	165-426MM	4-16MM	8-25	1400	18×180
HG508	219-508MM	4-20MM	8-20	2000	21×180

Our Services

1.) We will send the engineer for  the installation and training your workers how to operate this machine in correct way.
2.)  Warranty Team
One year quality guarantee, life guarantee repair.  Within quality guarantee period, except for failures caused by human error, repair parts will be provided for free. After the quality guarantee period, only charge the cost of the spare parts.
3.)  We supply the pre-sell and after-sell service.
pre-sell service: workshop design, and production output design
after-sell service: installation and training, and the skilled engineer for working.
4.)  We can also sent the engineer working for you serval months or 1 year. The engineer will help you to improve the output, reduce the waste and decrease the cost.
5.)  We supply the pre-sell service-Design for whole project for stainless steel pipe making/ carbon steel pipe making.
6.) We will be responsible for the loading and shipping.