ERW219 H.F. Straight Welded Pipe Production Line

ERW219 high frequency longitudinal welded pipe production line / pipe making machine / tube mill / pipe mill is designed to produce welded pipes of 89mm-219mm in OD and 2.0mm-8.0mm in wall thickness, as well as corresponding square and rectangular pipe.   We can design and manufacture pip e 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 89mm-219mm                  Thickness:2.0mm-8.0mm
Square & Rectangle Tube 70mm×70mm -170mm×170mm   Thickness:2.0mm-6.0mm
Length 6m-12m                       Length Tolerance: ±3mm
Production Speed 20-50 m/min
Production Capacity 35,000 ton/year
Consumption Mill installed Capacity 280 kw
Line Area 100m(length) ×9m (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 600-800mm
Coil OD Max 2000mm
Coil Weight 8.0t
Forming process
Round pipe Cold roll forming process Good roller design
Square & rectangular pipe General round-to-square process Stable forming process
Round-to-square with Turks head Good pipe quality
1.  High production efficiency, line speed can be up to 120m/min. 2.  High yielding, the machine works stably at a high speed, which improves the yielding of products. 3. Low wastage, low unit wastage and low production cost. 4.  High accuracy, diameter error is only 0.5/100 of the pipe OD. Products: GI, carbon steel and stainless steel tubes for metallurgy, construction, transportation, machinery and vehicle industries.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 up→ Uncoiling → Shear and Welding→ Spiral accumulator→ Forming → H.F. induction welding→ External burr removing→ Cooling → Sizing→ Flying saw → Run out table →Inspecting→ Packing→ Warehouse

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