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Automatic Leak Testing machines
Solutions
Automotive Parts
Airtightness testing for fuel tanks, waterproof testing for car lights, leak testing for engine parts, vehicle cameras, charging guns, and more.
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Electronic Devices
Waterproof, dustproof, and leak testing for products such as oral irrigators, mobile phones, earphones, and Type-C connectors.
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Medical Equipment
Seal testing for medical products including electronic blood pressure monitors, intravenous infusion tubing, sealed bags, and laparoscopic puncture devices.
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Security & Lighting
CCTV cameras, LED lights, LED displays, radar, communication base stations, geological survey sampling and analysis equipment, hydrological monitoring devices, and environmental monitoring equipment.
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Hardware & Die Casting
Leak testing for automotive die-cast parts, outboard motor die-cast parts, stamped aluminum sheets, and other product molds.
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Smart Furniture
Seal testing for smart home products including electric kettles, juicers, water dispenser filter boxes, electric water heaters, and more.
More InfoWaFu Brothers - Sixteen years of hard work to create an industry benchmark
WaFu Brothers (Shenzhen) Automation Technology Co., Ltd.Founded in 2009, with 16 years of experience in the production of airtightness testers and non-standard automation equipment, it is one of the first manufacturers of airtightness and waterproofing testers in China, serving more than 8,000 customers at home and abroad, including Audi.
We regard product quality as our life. We strictly follow the ISO9001 quality management system in every production link of leak detectors. We regard product innovation as our blood and attach great importance to R&D investment. Over the years, the annual R&D investment in leak detection technology has accounted for more than 20% of sales.
For 16 years, we have been forging ahead, and the spirit of striving for the first place has become the belief engraved in the bones of all WaFu Brothers employees. The flowers that we have watered with sweat day and night for many years have finally borne fruit. We are the first to completely solve the industry's major problem of sealing testers - environmental interference affects the detection accuracy!
Our Technical Advantages
Higher precision, faster efficiency, more flexible service — Leading a new era of airtightness testing
Testing Accuracy
±0.1 Pa
Far exceeding the average accuracy of industry airtightness testers
Traditional Methods: Large error margins, high missed detection rate
Testing Efficiency
≤ 3 seconds per piece
Fast leak test response, perfectly compatible with automated production lines
Traditional Methods: Complicated operations, long testing cycles
Customization Capability
100+ Industry Solutions
Supports non-standard leak test customization to fit various complex conditions
Traditional Methods: Generic solutions hard to meet actual needs
Honors & Certifications
We have earned recognition as a national high-tech sealing testing instrument enterprise, CE/FCC international certifications for leak testers, dozens of patents, and dual endorsement of technology and quality.
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Industry News
Latest updates, customer stories, and technical insights all in one place
News Center
Wafu Brothers and GAC Group Reach Strategic Cooperation to Promote Intelligent Upgrades in Automotive Sealing Testing
June 7, 2025
On June 7, 2025, Wafu Brothers officially reached a strategic cooperation agreement with GAC Group, focusing on automotive parts leak testing, sealing test equipment integration, and intelligent manufacturing solutions...
Focusing on Leak Tester International Cooperation! Indian Customers Visit Wafu Brothers in Shenzhen
May 20, 2025
On May 20, Wafu Brothers welcomed a distinguished group of overseas guests — a core client delegation from India who traveled specially to visit Wafu Brothers headquarters in Shenzhen, China.
Wafu Brothers Shandong Office Officially Opens
May 16, 2025
On May 16, 2025, Wafu Brothers officially launched its new office in Jinan, Shandong Province, marking another important strategic step in the company’s nationwide layout.
Expanding the North China Market! Wafu Brothers Shandong Office Grand Launch!!
May 10, 2025
Wafu Brothers announced that the company recently successfully opened a new office in Shandong Province, marking a further expansion of its domestic market layout.
Customer Cases
Importance of Leak Testing for Reverse Lights
Although small in size, the sealing performance of reverse lights is vital to vehicle safety and user experience. As a key part of the rear signal lights, they are often directly exposed at the rear edge, where poor sealing can cause the following issues...
Seal Testing for Dashcam Sensors
These sensors are mostly installed outside the vehicle or near its edges, exposed long-term to rain, dust, high temperatures, condensation, and varying air pressure. Poor sealing can lead to...
Technical Articles
Wafu Brothers Engineers Pioneer Breakthrough on Major Leak Testing Challenge — Impact of Environmental Temperature and Noise on Detection Accuracy
In modern manufacturing, leak testers, leak detection instruments, and waterproof testers are widely applied in automotive parts, medical devices, electronics, and other fields to ensure product sealing and quality. However, external factors like environmental temperature and noise have long posed challenges to detection accuracy. The Wafu Brothers engineering team, through in-depth research and innovation, has successfully overcome this obstacle, enhancing the precision and reliability of high-accuracy leak testers...
May 12, 2025
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Frequent Rework in Seal Testing? The Root Cause May Lie in the Testing System Itself — Wafu Brothers Explains
In industrial manufacturing, seal testing is a critical quality control step directly affecting product safety, stable operation, and lifespan. However, many companies face frequent seal test failures, high product rework rates, and untraceable customer complaints. These issues often stem not from product design or assembly errors but from deviations in the seal testing methods and equipment selection.
As a professional supplier of seal testing solutions, Wafu Brothers has devoted sixteen years to addressing seal testing pain points across industries by providing efficient, accurate equipment and services. This article will analyze the fundamental causes of high rework rates and introduce how upgrading leak testers, waterproof testers, and leak testing instruments can systematically improve product quality pass rates...
May 14, 2025
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