ERW273 H.F. Straight Welded Pipe Production Line

ERW273 high frequency longitudinal welded pipe production line / pipe making machine / tube mill / pipe mill is designed to produce welded pipes of 114mm-273mm in OD and 3.0mm-10.0mm in wall thickness, as well as corresponding square and rectangular pipe.   We can design and manufacture pipe making machine according to customers’ requirements.

Products Details

ERW tube mill is also called high-frequency longitudinal welded pipe production line. Suitable materials are hot-rolled or cold-rolled strip coils such as plain carbon steel and high-strength steel, etc. The strip steel is unrolled by the uncoiler, and then enters the accumulator storage after passing through the shear butt welding machine. The strip steel is extruded by rollers and divided into two parts: break-down section and fine pass section. After high-frequency induction welding and sizing part, output the required length of pipe, cut off by flying saw, and finally stack and pack the steel pipe. This production line is a comprehensive complete production line for continuous welding of steel strips into pipes, mainly composed of uncoiler, shear & end welder, accumulator, forming & sizing machine, H.F welder, flying saw, stacking & packing machine.

If there are special purposes or requirements for steel pipes, it is necessary to add testing equipment, such as hydraulic testing machine, intermediate frequency annealing machine, ultrasonic flaw detection machine, etc.

Product & Yield Round Pipe 114mm-273mm                  Thickness:3.0mm-10.0mm
Square & Rectangle Tube 90mm×90mm -210mm×210mm    Thickness:3.0mm-8.0mm
Length 6m-12m                       Length Tolerance: ±3mm
Production Speed 20-45 m/min
Production Capacity 40,000ton/year
Consumption Mill installed Capacity 350 kw
Line Area 120m(length) ×10m (width)
Worker 6-8 workers
Raw Material Material Carbon steel coil  Q235B(ASTM GR·D,σs 230)
Width 280mm-690mm                  Thickness: 2.0mm-8.0mm
Coil ID 570-640mm
Coil OD Max 1800mm
Coil Weight 15.0t
Forming process
Round pipe  Cold roll forming process Good roller design
ZTF forming process Save alt least 60% roller cost with electric control adjustment Read More
Square & rectangular tube General round-to-square process Stable forming process
Round-to-square with Turks head Good pipe quality
Process of directly square-to-square(DSS) One set of roller can produce all tubes with electric control and automatic adjustment Read More
Equipment advantages When producing round pipe, it can utilize ZTF forming technique When producing square & rectangular tube, it can utilize directly square-square (DSS) technique Products: architectural structure tubes, low-pressure liquid tubes, coal transmission belt tubes, drive shaft tubes, guardrail tubes, tower footing tubes, automobile beam steel tube and other products.High frequency welded pipe production line is mainly used for continuous production of straight seam welded pipe. It adopts high-frequency induction welding, which can not only produce round pipe but also corresponding square pipe and special-shaped pipes. The high-frequency pipe welding machine is mainly used for the production of various iron pipes, construction pipes, structural pipes, water pipes, oil pipes, API Pipes, and so on. Technical flow Scrolling upUncoiling Shear and WeldingSpiral accumulatorForming H.F. induction weldingExternal burr removingCooling SizingFlying saw Run out table InspectingPackingWarehouse

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