Focused on leak testing, empowering high-quality manufacturing
An Industry-Leading Brand,
A World-Class Leak Tester Manufacturer
Explore Products
We are a leader in the air leak tester industry, backed by 20 years of leakage tester manufacturing experience. More than 8,000 customers worldwide use our waterproof test equipment.
Here are some of the brands we are proud to serve:
WAFU Brothers (Shenzhen) Automation Technology Co., Ltd. is an origin manufacturer in the air leak tester field, with core patented technologies and a global customer base of more than 8,000 enterprises, including Audi, BYD, Xiaomi, and General Motors.
As a leading company in China's air leak tester industry, we have long focused on the R&D, production, and sales of air leak testing systems, flow test equipment, and fixtures. Our products serve automotive components, medical devices, aerospace, defense, consumer electronics, security and lighting, and home appliances.
Our engineering team provides tailored test solutions and responsive technical support to strengthen quality control throughout production.
Development History
2009
Founded
The company was registered and the founding team was established.
2010
Growth
Benchmarking advanced international technology, WAFU launched its first direct-pressure leak tester.
2013
Breakthrough
The second-generation leak tester solved high-pressure solenoid valve instability and drove a breakthrough year in sales.
2016
Transformation
WAFU implemented ISO 9001, filed nearly 20 technology patents, expanded nationwide, and diversified its business.
2019
Expansion
Global group operations were established as overseas market share reached a new high and ranked among the industry's leaders.
2025
Advancement
Institutionalized processes and systematic operations enabled healthy, orderly, and rapid group development.
High-Precision Leak Testing Equipment
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.
Latest Leak Tester
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.
Accuracy: 0.1Pa
Fast Testing
Customized Leak Testing Cabinet
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.
Sensitivity: 0.01Pa
Customized Solution
Leak Point Detector
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.
Test Range: 0~90KPa
Simulates Water Depth up to 300
meters
View Details
10 Reasons to Choose WAFU Brothers
- Free Solution Consultation
- Free Trial Experience
- Lifetime After-Sales Support
- Accurate Test Data
- MES Data Integration
- Multi-Channel Customization
- Free Software Upgrades
- Free Returns & Replacements
- 17 Years of Manufacturing Experience
- Excellent Cost Performance
Technical Advantages
17 Years of Technical Expertise, a Trusted Industry Brand
Your most reliable provider of leak testing solutions
Strong Capability, Guaranteed Quality
High Precision
Our leak testers deliver industry-leading precision up to 0.01 Pa, ensuring consistent and reliable results even in the most demanding applications.
Advanced Technology
Continuous R&D investment ensures our products are equipped with the latest technologies, providing cutting-edge leak testing solutions.
High Reliability
Built with durable structures and premium components, our equipment ensures long-term stability and low maintenance costs.
Exceptional Support
Our technical team provides comprehensive support, including installation training, maintenance, and consultation to ensure a worry-free user experience.
Customized Solutions
We specialize in customizing leak testing solutions tailored to the specific needs of each customer and industry, helping optimize production efficiency.
Global Service
With a global sales and service network, we provide timely technical support and after-sales service to customers worldwide.
Our Certifications & Patents
WAFU Impression
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.
Cooperation Cases
A leading enterprise in the leak testing industry,
the preferred partner of over 600 publicly listed companies.
Audi Group Cooperation Model
BYD Cooperation Model
GAC Group Cooperation Model
General Motors Cooperation Model
Customer Testimonials
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.
Mr. Zhang
(Product Manager, Leading New Energy Vehicle Company)
(Product Manager, Leading New Energy Vehicle Company)
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.
Mr. Zhao
(R&D Engineer, Publicly Listed Medical Device Company)
(R&D Engineer, Publicly Listed Medical Device Company)
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.
Mr. Sun
(Purchasing Manager, Well-Known Foreign-Invested Enterprise)
(Purchasing Manager, Well-Known Foreign-Invested Enterprise)
Air Tightness Testing Solutions
Transportation Components
Transportation Components
Fuel tanks, automotive lighting waterproof testing, engine part leak detection, vehicle cameras, charging guns, and more.
Learn More
Electronic Devices
Electronic Devices
Waterproof, dustproof, and leak testing for irrigators, smartphones, earphones, Type-C connectors, and more.
Learn More
Medical Equipment
Medical Equipment
Leak testing for electronic sphygmomanometers, IV tubing, sealed pouches, laparoscopic trocars, and more.
Learn More
Security & Lighting
Security & Lighting
Leak testing for surveillance cameras, LED lights, displays, radars, base stations, geophysical sampling equipment, hydrological and environmental monitoring instruments.
Learn More
Hardware Die Casting
Hardware Die Casting
Leak testing for automotive die-cast parts, marine die-cast parts, stamped aluminum sheets, and other mold products.
Learn More
Smart Home
Smart Home
Leak testing for smart home products like kettles, juicers, water dispensers, electric water heaters, and filter chambers.
Learn MoreIndustry Insights
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.
Technical Articles
How to Test for a Vacuum Leak with a Leak Tester ? Principles and Applications of Negative Pressure Testing
September 9, 2026
When it comes to a leak tester, many people first think of filling the inside of a product with compressed air and determining whether it leaks by monitoring pressure changes. In fact, in addition to conventional positive pressure testing, a leak tester can also use a negative pressure vacuum method for vacuum leak testing.
Read More
How Are Waterproof Products Tested for Sealing Performance? A Comprehensive Guide to Common Testing Methods, Procedures, and Equipment
August 11, 2026
With the development of industries such as consumer electronics, automotive, new energy, medical devices, and smart home appliances, more and more products are required to have excellent waterproof and dustproof performance. Whether a product needs to achieve IP67 or IP68, or meet other protection rating requirements, reliable sealing structures are essential. However, visual inspection alone cannot determine whether a product truly has good sealing performance. Therefore, leak testing has become an essential part of the product manufacturing process.
View Full ContentTesting Cases
Is Your Lawn Mower Control Compartment Prone to Water Ingress? The Housing Seal Test May Be the Cause
September 20, 2026
The test object in this case is a large lawn mower housing. Its waterproofing requirements do not call for every section to be tested. The inspection focuses on the compartment in the center of the housing where the electronic components are installed.
View Case
September 3, 2026
LED dot matrix modules are widely used in information display screens, outdoor advertising displays, traffic guidance displays, industrial display equipment, and smart terminals. Some products need to operate for long periods in humid, rainy, or highly temperature-variable environments. Therefore, the waterproof performance of the module housing and sealing structure directly affects product reliability and service life.
View Case
Cost Reduction & Efficiency Improvement | Automated Leak Testing Case for AIMA Four-Wheel Electric Vehicle Tail Lights
August 21, 2026
During the use of low-speed four-wheel electric vehicles, the tail lights are exposed to outdoor environments for extended periods. Various electronic components are installed inside the tail lights. If the sealing performance is insufficient, liquids, moisture, or dust may enter the lamp housing, potentially causing lens fogging, short circuits, and LED failure.
View CaseOur Partners
BYD Partner Logo
CATL Partner Logo
Hanslaser Partner Logo
Huawei Partner Logo
Xiaomi Partner Logo
Audi Partner Logo
Contact Us for Customized Solutions
Fill out the form below and our professional technical team will contact you within 24 hours with a tailor-made leak testing solution.
Company Address
2nd Floor, Building 6, Shayihuanbao Industrial Park, No. 496 Chuangcheng Road, Shajing Street, Bao'an District, Shenzhen
Phone
+86 17376311087
wafubrother@outlook.com
wafubrother@gmail.com