300×300×12.7mm Square and Rectangular tube making mill
Second hand 325x12.7mm ERW tube mill
Second hand 3200x20mm Spiral pipe mill
Second hand (219-508)×16mm HF ERW Tube Mill
Second hand φ2020×15mm Spiral pipe machine for sale
Used 3220x18mm Spiral welded pipe machine
Used 2540×25mm Spiral pipe machine
Second-hand φ813×20mm JCOE pipe line
Second-hand 1020x12mm 3LPE coating line
Second-hand 820x12mm Spiral pipe machine with beveler and hydro tester
Second-hand 1620×18mm Spiral pipe machine with Beveler and Hydro tester
Second-hand 3620x24mm Spiral welded pipe machine
Second-hand 200x200x16mm DFT tube machine
Second hand 2420x20mm Spiral welded pipe machine
Second hand 1220x12mm Spiral welded pipe machine
Second-hand 1820x16mm Spiral pipe machine
Second-hand 1220x16mm Spiral welded pipe machine
Second-hand 2540x25.4mm Spiral pipe machine
Second hand 1620x18mm spiral pipe machine
Second-hand 355×16mm high frequency pipe welding machine
Second-hand 1300×2.5mm slitting machine
Second-hand 2000×16 mm cut to length machine
Second-hand 750 4hi cold rolling mill
300×300×12.7mm Square and Rectangular tube making mill
Second hand 325x12.7mm ERW tube mill
Second hand 3200x20mm Spiral pipe mill
Second hand (219-508)×16mm HF ERW Tube Mill
Second hand φ2020×15mm Spiral pipe machine for sale
Used 3220x18mm Spiral welded pipe machine
Used 2540×25mm Spiral pipe machine
Second-hand φ813×20mm JCOE pipe line
Second-hand 1020x12mm 3LPE coating line
Second-hand 820x12mm Spiral pipe machine with beveler and hydro tester
Second-hand 1620×18mm Spiral pipe machine with Beveler and Hydro tester
Second-hand 3620x24mm Spiral welded pipe machine
Second-hand 200x200x16mm DFT tube machine
Second hand 2420x20mm Spiral welded pipe machine
Second hand 1220x12mm Spiral welded pipe machine
Second-hand 1820x16mm Spiral pipe machine
Second-hand 1220x16mm Spiral welded pipe machine
Second-hand 2540x25.4mm Spiral pipe machine
Second hand 1620x18mm spiral pipe machine
Second-hand 355×16mm high frequency pipe welding machine
Second-hand 1300×2.5mm slitting machine
Second-hand 2000×16 mm cut to length machine
Second-hand 750 4hi cold rolling mill
The coil opener is the core front-end machine of the spiral welded pipe production line and serves as the basic unit for raw material supply of the entire production line.
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As the core pre‑processing unit of the spiral‑welded pipe mill, the leveler adopts staggered leveling roll sets. It relieves residual internal stress of the strip steel via controlled alternating bending process and corrects plate‑shape deviations such as warpage and waviness. The numerically‑controlled adjustable roll gap accommodates plates of multiple specifications, ensuring flatness and geometric consistency of incoming materials. It avoids risks including forming misalignment and weld offset, stabilizes pipe forming and welding quality, and lays a technical foundation for continuous and efficient operation of the whole mill.
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This is a challenge for equipment manufacturers or steel pipe producers, but it is a straightforward task for construction teams. Now, let me explain how to build the foundation for civil engineering.
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Taiyuan Jintong Heavy Machinery Equipment Co., Ltd.'s slitting shears feature high-precision cutting, stable shearing tension control, and a quick-change blade design, effectively improving the processing efficiency of materials such as steel strip and hot-rolled/cold-rolled strip. Multiple customers have reported significant improvements in overall production line uptime and product consistency after implementing this equipment. The company's sales director stated, "We provide integrated services, from complete line design to on-site installation and commissioning, tailored to the individual needs of our clients, helping factories achieve digital and flexible production transformation." Since its launch, this product has been exported to Southeast Asia and parts of the Middle East, receiving positive feedback from the international market.
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The uncoiler of the spiral welded pipe mill is the core equipment of the first process in the production line, used to unfold the metal strip and smoothly transport it to the subsequent processes.
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Spiral welded pipe: the steel strip is rolled into a pipe blank according to a certain Angle of the helix (called forming Angle), and then the pipe seam is welded together to make it, which can use a narrower strip to produce a large diameter steel pipe, and can also use a steel strip with the same bandwidth to produce a different pipe diameter steel pipe.
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