Vacuum leak tester GB-ML

pneumaticvacuum chamberimmersion

Product Introduction
The GB-ML Leakage Tester is a pneumatic testing instrument that uses compressed air to control the lifting and lowering of the sealing barrel lid via an air cylinder. Equipped with a high-precision electronic pressure sensor and microcomputer control, it measures and compares sealing performance of flexible packages to support specification setting and quality control. Suitable for sealing performance testing of flexible packaging in food, pharmaceutical, and consumer goods industries.

Testing Principle
The sample is immersed in water and placed in a vacuum chamber. A vacuum is applied to create a pressure differential between interior and exterior of the package. Leakage or integrity loss is detected by observing gas bubbles escaping from the sample or by dye penetration into the package.

Applicable Standards
GB/T 15171, ASTM D3078-2002 (2013), USP 1207.2

Technical Parameters

• Vacuum Degree: 0–90 kPa
• Vacuum Accuracy: ±1% of indicated value
• Vacuum Holding Time: 0.01 s–99.99 h
• Sealing Barrel Size: Standard: Φ600×591 mm; other sizes optional/customizable
• Effective Vacuum Chamber Size: Standard: Φ550×396 mm; other sizes customizable
• Air Inlet Pressure: 0.6–0.8 MPa
• Power: 50 W
• Instrument Dimensions: 1005×802×1307 mm
• Power Supply: 220 V, 50 Hz

Product Features

• High-precision pressure sensor for real-time monitoring of inlet pressure and accurate vacuum control.
• Fully automatic sequence: programmable vacuum degree and holding time; automatic vacuuming, holding, release and cycle control. Pneumatic system ensures fast inflation and return; balanced internal/external pressure.
• Supports multiple leakage test methods: bubble (visual) method and dye penetration method for package integrity assessment. Key-controlled cylinder provides automatic opening/closing of the sealing barrel lid for safe and convenient operation.

Application Areas

• Plastic packaging: bags, containers (bottles, jars, tubs), pouches.
• Glass packaging: food and pharmaceutical glass bottles and containers.
• Metal packaging: cans, easy-open cans, aerosol cans, metal tubes.
• Other flexible or rigid packaging where sealing integrity must be verified.

Specifications

• Vacuum Degree: 0–90 kPa
• Vacuum Accuracy: ±1% of indicated value
• Vacuum Holding Time: 0.01 s–99.99 h
• Sealing Barrel Size: Standard: Φ600×591 mm; other sizes optional/customizable
• Effective Vacuum Chamber Size: Standard: Φ550×396 mm; other sizes customizable
• Air Inlet Pressure: 0.6–0.8 MPa
• Power: 50 W
• Instrument Dimensions: 1005×802×1307 mm
• Power Supply: 220 V, 50 Hz