What's Maotong Vacuum Leak Detection Equipment ?
Maotong Vacuum Leak Detection Equipment
"Maotong" refers to Maotong Technology (Beijing) Co., Ltd. (operating under the factory entity Jinan Maotong Testing Equipment Co., Ltd.). It is a domestic manufacturer specializing in automated online inspection equipment, with a deep focus on package sealing integrity and leak detection for industries such as food, beverages, beer, and pharmaceuticals.
The so-called Maotong Vacuum Leak Detection Equipment primarily refers to their core product line:
Vacuum Seam Inspectors / Online Leak Detection Systems
These systems are used on high-speed production lines to non-contactly and non-destructively determine whether containers (cans, glass bottles, etc.) suffer from air leaks, poor sealing, or abnormal vacuum levels, automatically rejecting defective products.
🔧 Core Working Principle — Acoustic Magnetic Pulse (EMP) Method
This is Maotong’s flagship detection technology. The process is as follows:
Step | Description |
|---|---|
① Container Positioning | Containers are stably fed into the inspection station via conveyor. |
② Magnetic Pulse Excitation | An electromagnetic pulse coil emits a directional pulse toward the metal lid. |
③ Micro-Vibration & Sound Generation | The pulse causes the lid to vibrate momentarily, producing an echo. |
④ Acoustic Signal Acquisition | High-sensitivity microphones capture the echo. |
⑤ Intelligent Discrimination | DSP digital signal processing analyzes the sound: |
⑥ Automatic Rejection | NG (No Good) containers are diverted into a rejection channel. |
Key Point: Non-contact, non-destructive, and suitable for high-speed online operation (up to tens of thousands of containers per hour).
📦 Main Product Lines & Applications
Product Series | Applicable Objects | Inspection Target |
|---|---|---|
Vacuum Seam Inspector (MT-YLG / MT-XL Series) | Tin cans, luncheon meat cans, glass bottles with metal lids | Internal vacuum level, seal leakage |
Glass Bottle Leak Detector (MT-DIVULGE-09) | Beer bottles / Glass bottles + Metal/Screw caps | Missing caps, air leaks, excessive internal pressure |
Can Leak Detection | Easy-open cans / 3-piece cans | End seam integrity, body leakage |
Online Squeeze Leak Detection (Flexible belt clamping + pressure sensing) | Bagged/Soft-packaged products (bread, puffed snacks) | Abnormal bag pressure / leakage |
✅ Key Features
Non-contact & Non-destructive: Does not puncture packaging; serves as online QC rather than destructive sampling.
High-Speed Capability: Claimed speeds up to 72,000 containers/hour.
Anti-interference Algorithms: Proprietary ENP noise exclusion technology ensures stability in noisy plant environments.
Automated Rejection: Integrated with PLCs/actuators to remove defective products automatically.
User-Friendly HMI: Color touch screen, Chinese menu, storage for multiple product recipes (up to 10 sets).
🏭 Manufacturer Background
Maotong Technology has a team background deeply rooted in machine vision and automation control. The company was formally registered in 2013 (in Beijing's Haidian District), with its factory/operations base located in the Licheng District Industrial North Road area of Jinan, Shandong.
If you can tell me your specific scenario—for example, whether you operate a cannery, brewery, or PET beverage line, along with the container type and capacity requirements—I can help further assess whether Maotong’s vacuum inspection solutions fit your needs, and outline key selection criteria (accuracy, false rejection rate, minimum detectable hole size, etc.).

