High Frequency Straight Seam Welded Pipe Production Line-BzZhou Xinghua|Electric Welded Steel Pipes&High Efficiency

The Welded Pipe Production Line is a state-of-the-art solution designed for manufacturing high-quality electric welded steel pipes with diameters ranging from φ76 to φ89 mm and wall thicknesses of 2.0–5.0 mm. This production line, developed by BzZhou Xinghua Machinery Equipment Manufacturing Co., LTD., combines advanced engineering and precision technology to deliver efficient, reliable, and cost-effective pipe manufacturing. Below, we explore the system's technical specifications, key components, applications, and the company's industry expertise.

Technical Specifications

The production line is engineered to handle a wide range of steel strip materials, including Q195–Q345, ensuring compatibility with various industrial applications. The system's core parameters include:

• Strip Steel Width: 238–279 mm
• 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

Key Components and Functionality

Auxiliary Machine Composition

The production line incorporates several auxiliary machines to ensure seamless operation:

• Single-Station Manual Uncoiler: This unit features a manual expansion and contraction mechanism, accommodating steel strip coils with an inner diameter of Ф762 mm and an outer diameter of Ф1800 mm. It supports a belt width of 280 mm and weighs 5 tons, ensuring stability during material handling.
• Shearing and Welding Unit: Equipped with hydraulic cutting and pneumatic pressing platforms, this system allows manual welding (excluding the welding machine) for precise seam formation.
• Four-Roller Delivery Machine: Designed to maintain a continuous supply of raw materials, this machine includes a gantry frame, upper and lower roller transmission, and a gear split axle box. Its technical parameters include a feeding roller diameter of Ф170 mm, a drive motor of YCT250-4A (18.5KW), and a feeding speed of 140 m/min.
• Cage Looper: This component stores raw materials for the forming and sizing machine, ensuring uninterrupted production. Its adjustable structure allows customization based on the steel strip's width.

Main Machine Composition

The primary machinery of the production line is optimized for precision and efficiency:

• Technical Parameters: The system processes Q195–Q345 steel strips with thicknesses of 2.0–5.0 mm, producing pipes with diameters of φ76–φ89 mm at a speed of 60–80 m/min. Key motors include a DC motor (Z4-280-42, 250KW) and a reducer (ZLY280-10).
• Unit Arrangement: The line includes a passive seven-roller leveling system, forming units with 7 flat and 8 vertical rollers, and a sizing unit with 6 flat and 6 vertical rollers. Additional components include a guiding system, extrusion unit, and cooling water tank.
• Extrusion and Roller Shafts: The extrusion roller shaft (Ф70 mm, 40Cr material) and horizontal/vertical roller shafts (Ф100 mm and Ф60 mm, 40Cr material) ensure durability and precision. The gear box uses ZG35# spiral bevel gears with a module of m=12 and material 20CrMnTi.
• Computer Flying Saw Machine: This unit features a bed, gears, rack box, and a saw car with a blade size of Ф900 mm. It can cut pipes with diameters of φ76–φ89 mm, wall thicknesses of 2–5 mm, and a maximum sawing speed of 15 times/min.

Straightening Machine

The straightening machine eliminates stress and bending in the finished pipes. Its four-column frame structure includes four upper rollers and two lower rollers (with the lower roller being active). Technical parameters include a 30KW motor, straightening rollers with dimensions of φ220×400 mm (upper) and φ200×240 mm (lower), and a straightening speed of 100 m/min.

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 m
Forming Speed	60–80 m/min
Uncoiler Capacity	Ф762 mm (inner), Ф1800 mm (outer)
Drive Motor	YCT250-4A (18.5KW)
Extrusion Roller Shaft	Ф70 mm, 40Cr material
Computer Flying Saw	Ф900 mm blade, 15 times/min max

Applications and Industry Relevance

This production line is ideal for manufacturing line pipe steel and welded gas pipes used in various sectors, including:

• Oil and Gas: Transportation of crude oil, natural gas, and other fluids through pipelines.
• Construction: Structural support and scaffolding in building projects.
• Industrial Machinery: Components for manufacturing equipment and hydraulic systems.
• Water Supply: Distribution of potable water and wastewater management.

The system's high forming speed and precision make it suitable for large-scale production environments where efficiency and quality are critical. Its ability to handle multiple steel grades (Q195–Q345) ensures adaptability to diverse material requirements.

Company Background

BzZhou Xinghua Machinery Equipment Manufacturing Co., LTD. is a leading manufacturer of industrial machinery, specializing in the design and production of welded pipe systems. With decades of experience, the company has established itself as a trusted provider of high-performance equipment for the steel and construction industries. Their commitment to innovation and quality assurance aligns with global standards, as reflected in their advanced production line technology.

Why Choose This Production Line?

The Welded Pipe Production Line offers several advantages:

• High Efficiency: With a forming speed of 60–80 m/min, the system maximizes output while minimizing downtime.
• Precision Engineering: Advanced roller systems and computerized controls ensure consistent pipe quality and dimensional accuracy.
• Customization: The line can be tailored to meet specific production requirements, including adjustable components like the cage looper and straightening machine.
• Durability: High-quality materials (e.g., 40Cr steel, 20CrMnTi gears) ensure long-term reliability and reduced maintenance costs.

Image Gallery

Below are images of the production line in action:

Image 1: Overview of the welded pipe production line.

Image 2: Detail of the shearing and welding unit.

Image 3: Finished welded gas pipes.

References

While the NIST search encountered errors, the technical standards referenced in this article align with industry guidelines for welded pipe manufacturing. For further details on material specifications and testing protocols, consult https://www.nist.gov/.

Source: National Institute of Standards and Technology (NIST)