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Breakthrough industry barriers and lead industry development Large diameter rotary black annealing production line: ¢1200*16mm

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Hangao distinguishes itself as a premier one-stop service provider in China for high-end stainless steel industrial pipe equipment. Our extensive portfolio includes precision welded pipe production lines, weld bead rolling machines, online and offline bright annealing equipment, welding tracking systems, intelligent control systems, finish rolled pipe bright annealing machines, rotary black annealing machines, and more. We pride ourselves on seamlessly integrating R&D, manufacturing, sales, and comprehensive support services to meet the diverse needs of our clientele.
High Speed Precision Welded Pipe Production Line
High Speed Precision Welded Pipe Production Line
Hangao's stainless steel pipe production line solution aligns seamlessly with the evolving landscape of smart industry, featuring integrated intelligent control systems capable of real-time production data recording and line management. Encompassing a diverse array of pipe diameters, our solution offers a range of welding methods, ensuring exceptional precision, speed, yield, and efficiency.
 
 
 
 
Induction Finished Tube Bright Annealing Production Line
Induction Finished Tube Bright Annealing Production Line
Hangao's stainless steel tube bright annealing machines have earned widespread acclaim, commanding an impressive 80% market share in China. Our commitment to continuous technological advancement, high-end bespoke services, and exemplary professional after-sales support has garnered recognition from discerning industry clients.
 
 
 
 
 
 
Rotary Black Annealing Line
Rotary Black Annealing Line
 
The rotary black annealing production line is used to heat stainless steel pipes to 1050-1080 ℃. Subsequently, place it in a specialized equipment that is cooled to room temperature through water spraying. After our equipment treatment, stainless steel welded pipes meet the technical requirements of ASTM A249-04 for industrial welded pipe heat treatment. Equipped with automatic feeding and discharging devices, the feeding and discharging pipes adopt a rotary feeding method, making the pipes more evenly heated and have better performance; After heat treatment, the pipe does not deform and saves straightening process.
 
 

Tube Mill

Hangao stands as the global frontrunner in delivering turnkey project, fully automated stainless steel tube mill lines. With a rich legacy of over two decades in the industry, we boast a comprehensive team dedicated to design, manufacturing, and after-sales support. Our extensive offerings encompass laser-welded tube machines, quick mold change stainless steel manufacturing machines, precision stainless steel tube making machines, titanium-welded tube manufacturing machines, and a spectrum of cutting-edge solutions.

Annealing Line

Hangao also offers a wide range of customised solutions in the field of tube annealing, commanding a robust market share of exceeding 80%. Our offerings include bright annealing machine for common stainless steel welded tubes, bright annealing machine for finish cold rolled tubes, black annealing machine for large and small diameter black steel tubes, in-line annealing plants, off-line annealing lines, etc.

About Hangao

Manufacturer Specializing In High-End Welded Pipe Equipment

Hangao is a 20 years high-tech and specialized enterprise, is China's only one with high-end precision industrial welded pipe production line full set of equipment manufacturing capabilities. At the same time, we have the R&D and manufacturing capacity of precision pipe welding machine, weld bead roller machine, bright annealing machine, off-line rotating annealing line welding tracking system, intelligent control system, mould and other whole plant equipment Products are exported to Dubai, Russia, India, Thailand, Pakistan, Vietnam, Malaysia, Serbia, Costa Rica, South Korea, the United States, Australia and other countries.
After 20 years of development, many of our technologies are leading the world and leading the trend.

The world's first intelligent insulation type bright annealing equipment, insulation section temperature accurate to ±2℃, better guarantee heat treatment quality.
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Why Choose Us

Hangao is a 20years high-tech and specialized enterprise, is China's only one with high-end precision industrial welded pipe production line full set of equipment manufacturing capabilities.
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  • One-Stop Service

    Our comprehensive one-stop service and extensive product range, encompassing various pipe making machinery available for purchase, uniquely position us to address and resolve any challenges you may encounter in the pipe-making process. It's our expertise in providing tailored solutions for your specific needs.
  • Powerful Technology
    Our company, backed by two decades of establishment, showcases formidable technical prowess with integrated capabilities in R&D, manufacturing, and sales. Through a continuous commitment to innovation, technical expertise accumulation, and collaborative teamwork, we have earned recognition from industry leaders such as Jiuli, Dewei, and Tsingshan. Our extensive factory space and a comprehensive array of foundational processing equipment underscore our commitment to providing top-tier manufacturing solutions.
  • Perfect After-Sales Service
    Customer-centered company values lead a professional repair team with years of experience and a customer service team that is always on call, your satisfaction is our unwavering commitment.​​​​​​​

What's new at Hangao?

Hangao is a 20years high-tech and specialized enterprise, is China's only one with high-end precision industrial welded pipe production line full set of equipment manufacturing capabilities.
Rotary Annealing Line.png
2024-11-11
Which Annealing Machine Do You Recommend?
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2024-11-11
Which Annealing Machine Do You Recommend?

​In industries like metal fabrication, automotive, aerospace, and construction, the choice of an annealing machine can significantly impact the efficiency and quality of production. With a wide range of options available, it can be challenging to determine which machine best suits your specific needs. This article aims to provide an in-depth analysis of the different types of annealing machines, including the Annealing Machine, Tube Annealing Machine, and Rotary Annealing Machine, to help manufacturers make informed decisions. We will also explore the key factors to consider when selecting an annealing machine and highlight the importance of choosing a reliable annealing machine manufacturer.

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2024-11-08
What Temperature Is Tube Annealing?
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2024-11-08
What Temperature Is Tube Annealing?

Tube annealing is a critical process in metallurgy and manufacturing, particularly for industries that rely on high-quality metal tubing. The annealing process involves heating the metal to a specific temperature and then cooling it in a controlled manner to alter its physical and mechanical properties. This process helps reduce hardness, increase ductility, and relieve internal stresses. However, one of the most common questions asked by professionals in the field is: "What temperature is tube annealing?" Understanding the right temperature for tube annealing is essential to achieving the desired material properties. In this paper, we will explore the factors that influence annealing temperatures, the role of different materials, and the importance of using advanced equipment like the Tube Annealing Machine and Coil Tube Annealing Machine to ensure optimal results.

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2024-10-02
How Coil Tube Annealing Machines are Transforming Industrial Heat Treatment
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2024-10-02
How Coil Tube Annealing Machines are Transforming Industrial Heat Treatment

In the ever-evolving landscape of industrial manufacturing, the demand for precision and efficiency in heat treatment processes is more critical than ever. Coil tube annealing machines have emerged as a pivotal solution, revolutionizing the way industries handle the annealing of coil tubes. These ma

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2024-09-27
Rotary Annealing Machines: Enhancing Heat Treatment for Industrial Applications
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2024-09-27
Rotary Annealing Machines: Enhancing Heat Treatment for Industrial Applications

In the world of industrial manufacturing, the heat treatment process plays a crucial role in enhancing the properties of materials. Among the various heat treatment methods, rotary annealing has emerged as a highly efficient and effective technique. In this article, we will explore the concept of ro

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2024-10-04
The Role of Straightening Tube Annealing Machines in Modern Manufacturing
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2024-10-04
The Role of Straightening Tube Annealing Machines in Modern Manufacturing

In the fast-paced world of modern manufacturing, precision and efficiency are the cornerstones of success. Among the many machines that play a pivotal role in achieving these goals, the Straightening Tube Annealing Machine stands out as a true game-changer. This remarkable piece of technology not on

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If Our Product Is What You Want

Please get in touch with our team immediately to answer you with a more professional solution
WhatsApp：+86-134-2062-8677 
Tel: +86-139-2821-9289 
E-mail: hangao@hangaotech.com 
Add: No. 23 Gaoyan Road, Duyang Town, Yun 'anDistrictYunfu City. Guangdong Province

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Guangdong Hangao Technology Co., Ltd. is China's only one with high-end precision industrial welded pipe production line full set of equipment manufacturing capabilities.
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