High-Frequency Straight Seam Welded Pipe Production Line-BzZhou Xinghua Machinery Equipment Manufacturing Co.,LTD.|Line Pipe Steel&Welded Gas Pipe

**Welded Pipe Production Line** is a state-of-the-art solution designed for manufacturing electric welded steel pipes with precise specifications. This production line is engineered to deliver high-quality **line pipe steel**, **welded gas pipe**, and **steel pipe line** with diameters ranging from **φ76 to φ89 mm** and wall thicknesses between **2.0–5.0 mm**. Developed by **BzZhou Xinghua Machinery Equipment Manufacturing Co., LTD.**, this system combines advanced technology with robust engineering to meet the demands of modern industrial applications.

Overview of the Welded Pipe Production Line

The **linepipe** production line is a critical component in the manufacturing of seamless and straight-seam welded pipes. This system is tailored for high-frequency electric resistance welding (ERW), ensuring consistent quality and efficiency. The line is capable of producing **line pipe steel** with a maximum length of **4–8 meters** and a forming speed of **60–80 meters per minute**. The integration of advanced automation and precision engineering makes this production line ideal for industries requiring durable and reliable steel pipes.

Main Technical Parameters

The production line is equipped with a series of technical specifications that ensure optimal performance and precision:

• Strip Steel Width: 238–279 mm (material: Q195–Q345)
• Strip Steel Thickness: 2.0–5.0 mm
• Steel Pipe Specifications: φ76–φ89 mm
• Steel Pipe Length: 4–8 meters
• Length Accuracy: 0–6 mm
• Forming Speed: 60–80 m/min

Auxiliary Machine Composition

The production line includes several auxiliary machines that enhance its functionality and efficiency:

• Single-Station Manual Uncoiler: Designed to handle steel strip coils with an inner diameter of **Ф762 mm** and an outer diameter of **Ф1800 mm**, this uncoiler ensures smooth material feeding.
• Shearing and Welding Unit: Features hydraulic cutting, pneumatic pressing platforms, and manual welding (excluding welding machines) for precise pipe assembly.
• Four-Roller Delivery Machine: Equipped with a gantry frame, upper and lower roller transmission, and a gear split axle box, this machine ensures continuous material supply to the forming unit.

Main Machine Composition

The core of the production line is its main machine, which includes the following components:

• Technical Parameters:
  • Raw materials: Q195–Q345, strip steel thickness 2.0–5.0 mm coil
  • Welding pipe diameter: φ76–φ89 mm
  • Welding pipe speed: 60–80 m/min
  • Motor: DC Z4-280-42, 250KW
  • Reducer: ZLY280-10
• Unit Arrangement: Passive seven-roller leveling, feeding vertical roller, forming 7 flat and 8 vertical, sizing 6 flat and 6 vertical, guiding, extrusion, scraping, cooling water tank, and a Turkish ear head (8 rollers, single-sided 4 rollers).
• Material Specifications:
  • Horizontal shaft: Ф100 mm, vertical roller shaft: Ф60 mm (material: 40Cr, quenched and tempered)
  • Extrusion roller shaft: Ф70 mm (material: 40Cr, quenched and tempered)
  • Gearbox: ZG35#, spiral bevel gear transmission (module m=12, material: 20CrMnTi)

Computer Flying Saw Machine

The **computer flying saw machine** is a critical component for precise cutting:

• Sawing Pipe Diameter: Ф76–89 mm
• Steel Pipe Wall Thickness: 2–5 mm
• Fixed Length: 4–8 meters
• Accuracy: ±3 mm
• Saw Blade Size: Ф900 mm
• Sawing Motor (AC): 55KW
• Driving Motor (DC): 22KW

Straightening Machine

The straightening machine ensures the elimination of stress and bending in the welded pipes:

• Function: Stress and bending elimination after welding
• Structure: Four-column frame with four upper rollers and two lower rollers (active lower roller, passive upper roller with manual worm gear pressure)
• Technical Parameters:
  • Motor: 30KW
  • Straightening Rollers: φ220×400 mm (upper), φ200×240 mm (lower) (material: GCr15, HRC60–65)
  • Straightening Speed: 100 m/min
  • Straightening Roller: φ120 mm (material: 40Cr, HRC45–50)
  • Angle Between Roller and Pipe: 30°

Product Specifications Table

Parameter	Specification
Strip Steel Width	238–279 mm
Strip Steel Thickness	2.0–5.0 mm
Steel Pipe Diameter	φ76–φ89 mm
Steel Pipe Length	4–8 meters
Forming Speed	60–80 m/min
Uncoiler Capacity	Inner Diameter: Ф762 mm, Outer Diameter: Ф1800 mm
Sawing Accuracy	±3 mm
Straightening Speed	100 m/min

Applications and Industry Use Cases

The **line pipe steel** produced by this system is widely used in various industries, including:

• Oil and Gas: For transporting crude oil and natural gas through pipelines.
• Construction: As structural components in buildings and infrastructure projects.
• Automotive: For manufacturing vehicle frames and exhaust systems.
• Manufacturing: As raw material for machinery and equipment.

Company Background: BzZhou Xinghua Machinery Equipment Manufacturing Co., LTD.

**BzZhou Xinghua Machinery Equipment Manufacturing Co., LTD.** is a leading manufacturer of industrial machinery, specializing in **steel pipe line** and **welded gas pipe** production equipment. With years of experience and a commitment to innovation, the company has established itself as a reliable supplier of high-quality machinery to global markets. Their expertise in **line pipe steel** production ensures that their products meet the stringent standards required by modern industries.

Industry Standards and Compliance

The production line adheres to international standards for **steel pipe line** manufacturing. According to the **National Institute of Standards and Technology (NIST)**, precision in manufacturing processes is critical for ensuring the safety and reliability of industrial equipment. The **welded gas pipe** produced by this system meets these standards, making it suitable for high-stakes applications.

Conclusion

The **Welded Pipe Production Line** is a testament to advanced engineering and technological innovation. With its robust design, precise specifications, and versatile applications, it is an essential asset for industries requiring high-quality **line pipe steel** and **steel pipe line**. By partnering with **BzZhou Xinghua Machinery Equipment Manufacturing Co., LTD.**, businesses can ensure they are equipped with the latest in **welded gas pipe** production technology.

References

National Institute of Standards and Technology (NIST). (n.d.). Retrieved from https://www.nist.gov