What's Maotong Vacuum Leak Detection Equipment ?

2026/05/26 11:25


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:
Good Seal: Echo is clear and high-frequency.
Leak/Low Vacuum: Echo is dull, low-frequency, or absent.

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.).


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