Product Introduction
The Intelligent seal tester operates on the negative pressure method. A specimen is placed in the sealing chamber, and a vacuum pump creates a negative pressure environment. A pressure differential forms across the specimen. If leakage exists, internal gas escapes and forms bubbles. If the seal is good, the specimen may expand and return to its original shape after pressure holding. Seal performance is evaluated by observing bubble formation, specimen expansion, and recovery. The instrument features an electronic pressure-holding device and digital pressure display, with precise recording of holding time. The high-quality acrylic chamber with 15mm wall thickness offers high pressure resistance, good transparency, and easy observation. The built-in timer starts with pressure holding and automatically resets after completion, ensuring convenient operation.

Key Features 
Premium Acrylic Sealing Chamber High-quality acrylic material with wall thickness increased to 15mm enhances pressure resistance and service life, with good transparency for easy observation.
Electronic Pressure-Holding Device Reduces mechanical wear and ensures longer pressure holding time, making the testing process stable and reliable.
Digital Pressure Display PVC control panel with digital pressure display and 0.1kPa resolution for precise pressure reading.
Built-in Timer The timer starts synchronously with pressure holding for convenient recording and observation, and automatically resets after completion.
Negative Pressure Testing Principle Creates pressure differential by vacuum pumping, observing leakage, expansion, and recovery to evaluate seal performance, compliant with GB/T 15171 and ASTM D3078.
Wide Vacuum Range Vacuum range -90 to 0kPa with ±0.1kPa digital accuracy, meeting seal testing needs of different packaging products.
Standard Vacuum Chamber Size Vacuum chamber size Φ270mm×200mm (H), other sizes customizable to accommodate various specimen specifications.
Broad Application Range Suitable for vacuum leak testing of food, pharmaceutical, medical device, packaging bags, bottles, tubes, cans, and boxes, ideal for quality control and R&D.

Main Technical Specifications 

FAQ 
1. What products is the Intelligent Seal Tester suitable for?
It is suitable for vacuum leak testing of food, pharmaceutical, medical device, packaging bags, bottles, tubes, cans, and boxes to detect seal integrity and leakage.
2. What is the testing principle?
It uses the negative pressure method. The specimen is placed in the sealing chamber and vacuum is applied to create a pressure differential. Leakage (bubble formation), expansion, and recovery are observed to evaluate seal performance.

3. What are the vacuum range and accuracy?
The vacuum range is -90 to 0kPa with digital display and ±0.1kPa accuracy, meeting seal testing needs of different packaging products.
4. Can the sealing chamber size be customized?
The standard vacuum chamber size is Φ270mm×200mm (H); other sizes can be customized upon request.
5. How is pressure holding time recorded?
A built-in timer starts synchronously with pressure holding for convenient recording and observation, and automatically resets after completion.
6. Does the equipment require an external air source?
Yes, an external 0.7MPa compressed air source is required (user-provided) to drive the vacuum system. Ensure the air source is clean and dry.

After-Sales Service
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Intelligent Seal Tester comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and seal testing method consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.