ERW Straight Seam Round Pipe Mill Line

Product Detail

ERW Straight Seam Round Pipe Mill Line 

ERW stands for Electric Resistance welding. Different with other welding method ERW steel pipe is welded by melting the steel material itself and joining together as a pipe. This is good for the pipe mechanical performance. Our ERW pipe mill line has following features such as lower labor intensity and high production capacity. Compared with other competitor's , one of the advantages of our mill line is that our quick-change system can shorten the time of changing rollers on machines, more efficient than others’. And also, the pipes coming out from our machines are smooth on the surface and can bear particular pressure.



Technical process: 









We can also offer designs according to buyer’s requires, make some change on the above process flow, to satisfy the buyers’ needs. For example, we can add welded seam annealing machine on the line to meet API pipe making requirements.
Raw materials entering Machine 


Carbon structural steel or low alloy steel :ss=400MPa 

Yield strength:=235MPa 

Tensile strength: =400MPa




Item      Model	HG32	HG50	HG60	HG76	HG89	HG114
Output Pipe OD	Ø12-Ø32	Ø21-Ø50	Ø21-Ø60	Ø21-Ø76	Ø32-Ø89	Ø48-Ø114
Wall thickness(mm)	0.5-2.5	0.6-3.5	0.8-3.5	1.0-3.75	1.0-4.0	1.5-5.0
Steel material	Carbon steel and low alloy steel coil, ss=400MPa, sb=580MPa
Main power	75KW	90KW	110KW	160KW	185KW	200KW
Welding speed (m/min)	60-120	60-120	60-110	50-95	30-85	30-80
HF power	150KW	200KW	200KW	300KW	350KW	400KW
Item      Model	HG165	HG219	HG273	HG325	HG426	HG660
Output Pipe OD	Ø89-Ø165	Ø140-Ø219	Ø165-Ø273	Ø165-Ø325	Ø219-Ø426	Ø325-Ø660
Wall thickness(mm)	less than 12	less than 16	less than 16	less than 16	less than 16	less than 22
Steel material	345B, J55, K55, X52, X60, X70, N80
Main power	560KW	800KW	800KW	960KW	960KW	1200KW
Welding speed (m/min)	=80	=70	=60	=50	=40	=30
HF power	600KW	1000KW	1000KW	1000KW	1000KW	1900KW
Components	Loading car, decoiler, strip threading machine, shearer and end welder, accumulator, forming stand, air cooler, sizing stand, flying saw, straightner, end beveler, hydraulic tester, mark sprayer, packing and bundling machine.




Package and shipping: Standard exporting packing and shipping.
Our service after sale: The same as ERP steel pipe mill line for big pipes.
Loading port: Tianjin port, China

Welcome to get the high quality erw straight seam round pipe mill line from us. We are one of the leading China manufacturers and suppliers of various manufacturing machines. Welcome to check the price list and the quotation with us.