Welded Steel Carbon Pipes Production Machine

Product Description

Product Description
ERW Welded Tube Mill
ERW welded tube mill is designed to roll steel strips continuously to produce straight seam welded tubes or pipes which is used to produce structure pipes of circular, square and rectangular tube such as threading pipe, scaffold pipe, bicycle tube, fitness equipment pipe, pile pipe in highway, low and medium pressure fluid pipe such as water pipe, heating pipe etc, as well as automobile tube, boiling pipe, roller carrier pipe etc high precision welded pipe.
The production flow of ERW welded tube mill :
Steel coils -- Coil loading -- Uncoiler --Shear & Welder -- storing accumulator -- forming -- HF welding -- Burr removing -- Polishing -- Cooling -- Sizing -- Rough straightening -- flying cutting saw -- Inspecting & Collecting -- Packaging -- Storing
The shear& welder is used for the shearing of the irregular parts in the head and the tail of the two belt coil, and the fulfilling out of butt welding . Using pneumatic (or hydraulic)shearing, with semi-auto argon arc welding.
There mechanical double-cone uncoiler and pneumatic double-cone uncoiler , also hydraulic single cone uncoiler and hydraulic double-cone uncoiler also available in our factory. The ERW pipe mill uncoiler is used for the alternative feeding of steel strip. Using double-station mechanical or hydraulic tensioning, with 360°rotary, while one cone online and the other standby.
For material storage, we also have professional devices for this function. In order to realize the function of storing a certain steel strip to supply the main forming & sizing pipe mill and ensure the continuous steel pipe production. We developed many kinds of storage device , like cage type storage, horizontal spiral accumulator, landing spiral accumulator etc .
Product Parameters
Main technical parameters of steel pipe tube mill ERW32-ERW114 :

	ERW32	ERW50	ERW60	ERW76	ERW89	ERW114
Diameter range(mm)	φ12-32	Φ21-50	Φ21-60	Φ21-76	Φ32-89	Φ48-114
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	σb≤580Mpa σs ≤400Mpa carbon steel and low alloy steel
Main motor power	75KW	90KW	110KW	160KW	185KW	200KW
Speed(m/min)	60-120	60-120	60-110	50-95	30-85	30-80
HF welder power	150KW	200KW	200KW	300KW	400KW	400KW
Equipment configuration	Uncoiler , shear & butt welder, accumulator, forming& sizing machine,flying cutting saw, end facing machine,automatic packing machine, storage.

Main technical parameters of steel pipe tube mill ERW165-ERW660:

	ERW165	ERW219	ERW273	ERW325	ERW426	ERW660
Diameter range(mm)	Φ89-165	Φ140-219	Φ165-273	Φ165-325	Φ219-426	Φ325-660
Wall thickness(mm)	≤12	≤16	≤16	≤16	≤16	≤22
Steel material	345B J55 K55 X52 X60 X70 N80
Main motor power	560KW	800KW	800KW	960KW	960KW	1200KW
Speed(m/min)	≤80	≤70	≤60	≤50	≤40	≤30
HF welder power	600KW	1000KW	1000KW	1000KW	1200KW
Equipment configuration	Uncoiler , shear & butt welder, spiral accumulator, forming& sizing machine,flying cutting saw, straightening machine, end facing machine, hydrostatic testing machine,marking machine,automatic packing machine, storage.

Besides the straight seam welded pipe production line, we also provide all kinds of matching rollers. Those rollers are made of Cr12 and Cr12MoV.Technologies including vacuum heat treatment,cryogenic cooling and surface oxidation guarantee the high precision and long durability of the rollers. Their service life is increased by over 50% compared to traditional products.
Packaging & Shipping