Make Production More Efficient

Provide customers with one-stop unique customized solutions

Cold mill inline, speed synchronization

Greatly improve work efficiency

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

Solutions

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.

Precision Tube Mill Production Line

Precision Tube Mill Production Line

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.
laser welding tube mill production line

laser welding tube mill production line

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.
Titanium Tube Mill Production Line

Titanium Tube Mill Production Line

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.
Roller Quick Change Tube Mill Production Line

Roller Quick Change Tube Mill Production Line

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.

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.

Bar Quenching Production Line

Bar Quenching Production Line

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.
Finish Pipe Annealing Production Line

Finish Pipe Annealing Production Line

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.
Bar Quenching Production Line

Bar Quenching Production Line

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.
Rotary Annealing Line

Rotary Annealing Line

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.

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, 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.

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.

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.

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2025-07-15

The Intelligent Evolution of Pipe Welding Equipment under Industry 4.0

2025-07-15

The Intelligent Evolution of Pipe Welding Equipment under Industry 4.0

As manufacturing enters the Industry 4.0 era, pipe welding equipment is transforming from manual tools into intelligent, connected systems. This article explores how smart welding technologies—such as digital power sources, three-cathode torches with electromagnetic arc control, and advanced laser seam tracking systems—are overcoming the limitations of traditional welding. It highlights the integration of data collection, real-time monitoring, and remote operations, enabling higher quality, faster production, and greater safety. Through practical applications in stainless steel pipe, heat exchanger, and complex structural welding, it showcases the real-world value of intelligent upgrades. Looking ahead, the convergence of AI, big data, edge computing, and digital twin simulation is set to revolutionize pipe welding, making it more autonomous and adaptive. Smart welding is no longer a future concept—it’s the path forward for high-end pipe manufacturing in a globally competitive landscap

2025-07-03

What Does An Annealing Machine Do?

2025-07-03

What Does An Annealing Machine Do?

What Does an Annealing Machine Do?IntroductionIn the manufacturing and materials processing industries, the annealing machine is a critical piece of equipment that plays a significant role in improving the properties of various materials. The process of annealing is widely used to enhance the workab

微信图片_20240911094657.jpg

2025-06-25

What Is An Annealing Machine?

2025-06-25

What Is An Annealing Machine?

In the realm of industrial manufacturing and materials processing, the annealing machine is a vital piece of equipment that plays a crucial role in enhancing the properties of various materials. The process of annealing is used across numerous industries to improve the workability, durability, and o

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2025-04-08

Formation reason and solution of welding porosity of stainless steel pipe

2025-04-08

Formation reason and solution of welding porosity of stainless steel pipe

Porosity is a common defect in the welding of stainless steel pipes, which is manifested as small holes in the weld, affecting the tightness and strength of the pipes. The following is an easy-to-understand way to explain the causes of stomata and how to deal with them:1. Where do pores come from?Ga

2025-03-25

Preventing Intergranular Corrosion in Stainless Steel Welds

2025-03-25

Preventing Intergranular Corrosion in Stainless Steel Welds

Title: Understanding and Preventing Intergranular Corrosion in Stainless Steel WeldsMeta Description: Learn about intergranular corrosion in stainless steel welds, its causes, prevention methods, and the importance of bright solution treatment. Optimize weld quality and longevity.Introduction:Weldin

If Our Product Is What You Want

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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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