Maotong Launches High-Speed Food Bag Leak Detection Machine Leak Detection System for Flexible Packaging Industry
As the food and beverage packaging industry continues to demand higher production efficiency and stricter quality standards, advanced leak detection and pressure inspection technologies are becoming increasingly important. The newly introduced Food Bag Leak Detection Machine fully automatic functional testing system is designed to address these challenges with high-speed, high-precision online inspection capabilities.
The Food Bag Leak Detection Machine can inspect more than 300 packages per minute, making it suitable for modern automated production environments. The system uses a contact-based online detection method to directly measure the internal pressure characteristics of packaging containers, allowing manufacturers to obtain stable and reliable inspection data while improving product quality consistency.
Advanced Belt-Squeeze Detection Technology
The equipment is built on Maotong’s belt-squeeze detection technology, developed and refined through more than ten years of industrial application and technical research. During operation, products pass through a flexible conveyor belt mechanism that applies controlled pressure to the package surface. A side-mounted sensor captures the internal pressure response and converts it into digital signals through the control system.
The collected data is then analyzed to evaluate package pressure stability and sealing integrity. Compared with conventional inspection equipment available in domestic and international markets, the Food Bag Leak Detection Machine offers higher detection accuracy and improved reliability for high-speed production lines.
Suitable for Multiple Packaging Types
The system is designed for a wide range of flexible packaging products, including:
Liquid nitrogen cartons and pouches
Gas-filled or steam-filled plastic bags
Aluminum foil stand-up liquid pouches
Its versatile inspection capability allows manufacturers in the food, beverage, dairy, and liquid packaging industries to enhance product safety and reduce defective output.
Accurate Detection of Leakage and Pressure Abnormalities
One of the key functions of the Food Bag Leak Detection Machine is its ability to detect seal leakage and abnormal internal pressure conditions. The system can identify:
Leakage caused by poor sealing performance
Underinflated packages
Excessively swollen or bulging bags
With a pressure detection accuracy of ±0.02 MPa, the equipment ensures highly reliable inspection results even during high-speed continuous production.
Intelligent Synchronization with Production Lines
The testing system automatically synchronizes its operating speed with the production conveyor line. If the production line stops unexpectedly, the inspection system immediately halts operation to prevent package bursting, conveyor jams, or unnecessary product waste.
Additional intelligent functions include:
Real-time rejection record display
Automatic continuous rejection mechanism
Shutdown protection system
Visual alarm notifications for abnormal impact conditions
User-friendly HMI (Human-Machine Interface) operation
DSP-based digital signal processing technology developed by Maotong
24/7 remote technical support services
Front-End Pressure Stabilization Mechanism
To improve leak detection accuracy, the system incorporates a front-end guide mechanism that pre-compresses products before inspection. This process stabilizes internal pressure conditions and enhances detection consistency.
For leaking packages, internal pressure is released during transportation, and the remaining pressure is measured at the discharge end. Properly sealed products maintain a stable pressure profile, while defective products exhibit obvious pressure deviations. This comparison allows the system to reliably identify seal failures and packaging defects.
Real-Time Detection and Automatic Rejection
As products travel along the conveyor, a positioning sensor first identifies each package and records its encoder information through the control unit. The force sensor then measures the pressure generated between the product and conveyor belt.
Inspection data is transmitted to the Maotong signal processing board for analysis. The results are displayed in real time on the HMI monitoring interface and simultaneously sent to the control unit. Once a defective package is detected, the reject mechanism automatically removes the corresponding product from the production line.
Easy Installation and Industrial-Grade Construction
The Food Bag Leak Detection Machine is designed for industrial production environments and features a durable 304 stainless steel frame integrated with a conveyor system. The machine weighs approximately 100 kg and supports straightforward installation.
Key installation requirements include:
Single-phase AC 220V, 50Hz power supply
Total power consumption of 250W
Air pressure requirement of 4–8 bar
Installation on a 1.5–2 meter straight conveyor section
Recommended inspection after product cooling for improved accuracy
The equipment operates within environmental conditions of 10–80% relative humidity and temperatures ranging from 0°C to 50°C.
Focus on Operational Safety
To ensure safe operation, the manufacturer emphasizes that only trained personnel should operate or maintain the equipment. Operators are advised to keep all safety covers and warning labels in place and avoid contact with moving reject mechanisms during operation.
The system also includes grounding protection to reduce the risk of static electricity damage to electronic components and control systems.
Supporting Automated Quality Control in Modern Manufacturing
With increasing demand for high-speed packaging inspection and leak detection solutions, the Food Bag Leak Detection Machine provides manufacturers with an efficient and intelligent quality control solution. By combining accurate pressure analysis, automated rejection, and stable online inspection performance, the system helps reduce defective products while improving production efficiency and packaging reliability.
