The ERW (Electric Resistance Welding) Tube Mill Line is one of the most efficient and cost effective methods for producing steel pipes with longitudinal seam welding. In this process, the edges of the steel strip are precisely and uniformly welded using hig frequency (HF) current. This technology enables the production of high quality pipes at high speed and productivity, making it widely used in various industries, especially in the oil and gas sector.

High Pressure Steel Pipe Making Machine ERW Tube Mill

The ERW system, also known as the “fixed and replaceable tooling” method, is one of the classic and widely used approaches in the production of steel pipes. In this method, a complete set of forming rolls is specifically designed, manufactured, and installed on the production line for each pipe size.For instance, if the production needs to switch from a 114 mm pipe to a 76 mm or 50 mm pipe, the existing forming rolls must be manually removed, the new set of rolls installed, and all required adjustments must be made from scratch. This process is time consuming and requires a complete shutdown of the production line.

Advantages of the ERW Tube Mill Line at Lotos Forming:

• High precision and high quality pipe production in various diameters and thicknesses. • High production speed with minimal line downtime. • Reduced material waste and optimized use of raw materials. • Flexibility in producing round, square, and rectangular pipes. • Advanced control systems including PLC and HMI for enhanced productivity. • Full customization available based on customer requirements.

Welded Pipe Making Machine

• working flow

Raw material (steel coil) → uncoiling → leveling →shearing and butt-welding → material accumulating → non-power leveling →mill-forming → high-frequency welding → removing burrs outside of weld seam → Zinc spraying → cooling → sizing → roughly straightening → computer controlled fixed length cutting → run-out table

What Is An ERW Tube Mill?

Lotos Forming’s ERW tube mill line, utilizing high frequency welding technology, is recognized as one of the most advanced and cost effective solutions for producing longitudinally welded steel pipes. This system offers high-speed production, low material waste, and the flexibility to produce pipes in a wide range of diameters and thicknesses making it an ideal choice for various industries, including oil and gas.

Thanks to its advanced technology and full customization options, Lotos Forming’s ERW tube mill lines can easily meet the specific requirements of each customer. If you are looking for a tube production line that combines high quality, high efficiency, and professional after sales support, Lotos Forming is your ideal partner. For expert consultation and further information about our ERW tube mill lines, feel free to contact our specialists.

FAQ

1. What is the production speed in an ERW tube mill line? Production speed depends on the type of line, raw materials, and operator settings. However, in general, it ranges between 30 to 120 meters per minute. Lotos Forming’s advanced tube mill lines are capable of maintaining high-speed production without compromising quality.

2. Is it possible to place a customized order based on specific customer requirements? Yes. Lotos Forming fully customizes all tube mill lines to meet the exact needs of each customer. Everything from pipe diameter and wall thickness to the cutting method and automation system can be tailored accordingly.

3. Do ERW tube mill lines from Lotos Forming come with warranty and international after sales service? Yes, all ERW tube mill lines offered by Lotos Forming come with a 12 to 24- month warranty, covering technical failures caused by manufacturing defects and systematic issues. Additionally, our after-sales service is available internationally, and our technical team is fully equipped to handle installation, commissioning, and ongoing support abroad.

4. What does the after-sales service of Lotos Forming include? Lotos Forming’s after-sales service includes installation, commissioning, operator training, preventive maintenance, spare parts supply, and technical consultation. Our support team is available 24/7 to provide both online and on site assistance when needed.

5. What services are covered by the warranty? The warranty includes the replacement of defective parts, free repairs within the warranty period, and access to both remote and on-site technical support. Our after-sales service team responds promptly to resolve any issues that may arise during operation.