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

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

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

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.

million+

Registered CGas & Oiltal

Industry Experience

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Cover An Area

Company Members

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.

2025-12-25 145216_副本_3081_2310_2463_1847.jpg

2025-12-26

Love Spreads Warmth, Responsibility Forges Commitment – Hangao Tech "Dream Realization Campaign" Material Distribution Event Successfully Held

2025-12-26

Love Spreads Warmth, Responsibility Forges Commitment – Hangao Tech "Dream Realization Campaign" Material Distribution Event Successfully Held

the Party Branch of Guangdong Shunde Seko Machinery Technology Co., Ltd. has always adhered to the business philosophy of "taking from society and giving back to society," leading the employees of Guangdong Hangao Technology Co., Ltd. to deliver comfort and warmth to families in need.

2025-12-26

Ordinary Bright Annealing Vs. Bright Annealing with Heat Preservation Section: Core Differences in Stainless Steel Pipe Manufacturer

2025-12-26

Ordinary Bright Annealing Vs. Bright Annealing with Heat Preservation Section: Core Differences in Stainless Steel Pipe Manufacturer

This article compares the core differences between the conventional bright annealing process and the bright annealing process with an additional insulation section in stainless steel tubes. The former has a simpler process and lower investment, and is suitable for medium and low-end pipe materials, but its performance and precision are limited; the latter adds an insulation section, and comprehensively upgrades in terms of microstructure, mechanical properties, surface quality, etc., and is suitable for high-end industries and extreme scenarios. It is environmentally friendly and has high added value, making it the preferred choice for enterprises to pursue high-end development.

2025-10-15

HANGAO Laser Welding Technology — Defining Weld Quality Through Precision and Intelligence

2025-10-15

HANGAO Laser Welding Technology — Defining Weld Quality Through Precision and Intelligence

HANGAO Laser Welding Technology — Weld Quality Defines Core CompetitivenessI. Industry Background: Transition from Traditional Welding to Precision Laser WeldingAs manufacturing evolves toward intelligence and high-end applications, welding technology has become a crucial part of modern metal formin

2025-09-19

Intelligent Manufacturing and Green Transformation: Guangdong Hangao Technology to Present HVAC Tube Solutions at TUBOTECH 2025

2025-09-19

Intelligent Manufacturing and Green Transformation: Guangdong Hangao Technology to Present HVAC Tube Solutions at TUBOTECH 2025

Guangdong Hangao Technology will showcase its latest intelligent welding and tube production solutions at TUBOTECH 2025 in São Paulo, Brazil. As the tube and welding industry embraces intelligent manufacturing and sustainability, Hangao’s innovations deliver high-speed, precise, and eco-friendly production. Visit Booth No. 310 to explore how Hangao is driving global competitiveness and green transformation in tube production.

2025-09-30

Important Holiday Notice: Mid-Autumn Festival & China National Day 2025

2025-09-30

Important Holiday Notice: Mid-Autumn Festival & China National Day 2025

Guangdong Hangao Technology Co., Ltd. would like to inform all our valued customers and partners about our upcoming holiday schedule for the Mid-Autumn Festival and China National Day in 2025.These two important Chinese traditional holidays are a time for reunion, celebration, and national pride. We

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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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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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