WAFU Brothers was founded in 2009,
one of the earliest manufacturers in China to enter the leak testing instrument industry.
WAFU Brothers (Shenzhen) Automation Technology Co., Ltd. is a high-tech manufacturer specializing in the research, development, production, and sales of various types of leak testers, sealing integrity testing systems, IPX waterproof testing equipment, and customized fixtures and tooling. Its products are widely used in industries such as automotive, medical devices, aerospace, defense, consumer electronics, security systems, and home appliances.
With 17 years of industry experience, WAFU Brothers has provided products and services to over 8,000 customers worldwide, including well-known domestic and international enterprises such as Audi, BYD, Xiaomi, and General Motors. The company’s market presence spans across the globe.
The company is supported by a professional R&D team, a dedicated pre-sales and after-sales service team, and modern manufacturing facilities. From product design and quality to customer experience, as well as software and hardware development, every detail reflects the team’s commitment and focus. WAFU Brothers consistently upholds the principle that “providing optimal leak testing solutions and satisfactory service to customers” is its top priority.
Holds nearly 100 software copyrights, utility model patents, and invention patents related to leak testing instruments,
and has served more than 8,000 domestic and international clients, including Huawei and Audi.
Focused on the R&D of leak testing technology, initially established a research team, benchmarked against international advanced technologies, and launched the first direct-pressure leak tester, laying the foundation for the industry.
Released the second-generation leak tester, specifically addressing the instability issue of high-pressure solenoid valves. Obtained three core patents, with accuracy improved to 0.1 Pa.
Launched automated testing systems, entered the new energy battery sector, and obtained the certification as a National High-Tech Enterprise.
Established deep cooperation with several leading new energy enterprises, promoted the implementation of automated battery leak testing equipment, surpassed 8,000 global clients, set up overseas technical service centers, exported products to over 30 countries, and achieved an accuracy level of 0.02% FS.
WAFU Brothers’ main products include leak testing instruments, waterproof testing instruments, sealing testing equipment, and other leak detection devices,
and is a leading enterprise in China’s leak detection equipment industry.
The latest leak tester from WaFu Brothers adopts a higher-precision microcontroller integrated solution, achieving an accuracy of 0.1Pa. It meets the needs of high-precision seal testing, leak point detection, and airtightness testing.
This product is a high-precision leak testing equipment with a high degree of customization. The equipment adopts an integrated structure and supports fully customized solutions, including customized testing processes.
This product is a high-precision leak point detector, also known as a water leakage tester, designed to check product sealing and locate leaks. By applying water pressure, it accurately identifies leak points, helping companies detect sealing issues in production and design promptly.
Your most reliable provider of leak testing solutions
Our leak testers deliver industry-leading precision up to 0.01 Pa, ensuring consistent and reliable results even in the most demanding applications.
Continuous R&D investment ensures our products are equipped with the latest technologies, providing cutting-edge leak testing solutions.
Built with durable structures and premium components, our equipment ensures long-term stability and low maintenance costs.
Our technical team provides comprehensive support, including installation training, maintenance, and consultation to ensure a worry-free user experience.
We specialize in customizing leak testing solutions tailored to the specific needs of each customer and industry, helping optimize production efficiency.
With a global sales and service network, we provide timely technical support and after-sales service to customers worldwide.
WAFU Brothers (Shenzhen) Automation Technology Co., Ltd. — a real on-site overview. You are welcome to visit us in person for discussions,
and we will provide on-site leak testing solutions for your products.
A leading enterprise in the leak testing industry,
the preferred partner of over 600 publicly listed companies.
Real feedback from industry clients
We are a manufacturer of new energy vehicle batteries. After adopting WAFU Brothers leak testers, the sealing inspection of our battery packs became much more stable, and even micro leaks can now be detected accurately. The equipment offers fast cycle times and reliable data, fully meeting the requirements of our production line.
In medical device manufacturing, sealing reliability is a critical requirement. WAFU Brothers leak testers have demonstrated excellent stability and consistency in practical applications, effectively identifying even tiny leaks and helping us maintain higher product quality standards.
We are a foreign-invested audio equipment manufacturer with strict requirements for supply chain quality and testing equipment. Compliance with IEC international standards and the quality specifications of European and American customers is essential. After introducing WAFU Brothers leak testers for 100% sealing inspection of our high-end audio components, the overall performance exceeded our expectations.
Fuel tanks, automotive lighting waterproof testing, engine part leak detection, vehicle cameras, charging guns, and more.
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Waterproof, dustproof, and leak testing for irrigators, smartphones, earphones, Type-C connectors, and more.
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Leak testing for electronic sphygmomanometers, IV tubing, sealed pouches, laparoscopic trocars, and more.
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Leak testing for surveillance cameras, LED lights, displays, radars, base stations, geophysical sampling equipment, hydrological and environmental monitoring instruments.
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Leak testing for automotive die-cast parts, marine die-cast parts, stamped aluminum sheets, and other mold products.
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Leak testing for smart home products like kettles, juicers, water dispensers, electric water heaters, and filter chambers.
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WAFU Brothers has been deeply engaged in the leak testing industry for 17 years and is a leading provider of sealing solutions in the field,
and has become a well-known brand of leak testing instruments both in China and internationally.
May 18, 2026
Many people assume that leak testers are only used in the automotive or electronics industries. However, in modern manufacturing, any product involving sealing, waterproofing, or leak detection relies on leak testing technology. So the questions are: 👉 Which industries can leak testers be applied in? 👉 Why are they used in almost every manufacturing sector? 👉 How many product categories do they actually cover?
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July 10, 2026
In the industrial manufacturing sector, many companies encounter a common question when purchasing testing equipment: Why does the same type of equipment have so many different names? For example, some call it a leak tester, others refer to it as an air tightness tester, while others use terms such as leak detector, leak testing machine, or waterproof tester. For companies that are new to leak testing, these different terms can often be confusing.
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July 29, 2026
Some workpieces require laser welding for sealing after CNC machining. If the weld seam contains tiny pores, incomplete welds, or cracks, quality issues such as air leakage, liquid leakage, or insufficient pressure may occur during subsequent use.
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July 21, 2026
Coolant elbow pipes for new energy vehicles are typically made of aluminum alloy, stainless steel, or composite materials. After processes such as bending and flaring, the following sealing risks may arise:
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June 25, 2026
An automotive fuel tank cap is a sealing component installed on a vehicle's fuel filler neck. Its primary function is to seal the fuel tank system, preventing fuel leakage, fuel vapor evaporation, and the entry of dust, moisture, and other contaminants. Although small in size, the fuel tank cap is an essential part of the vehicle's fuel system, playing a vital role in safety, environmental protection, and reliable vehicle operation.
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2nd Floor, Building 6, Shayihuanbao Industrial Park, No. 496 Chuangcheng Road, Shajing Street, Bao'an District, Shenzhen
+86 17376311087
wafubrother@outlook.com
wafubrother@gmail.com