What 's Maotong X-Ray Liquid Level Detector ?
Overview
The Maotong X-Ray Liquid Level Detector (also known as an Easy-Open Can Liquid Level Inspector / Online Liquid Level Detection System, typical model: MT-HFX-06) is an industrial, non-contact, online liquid level detection device independently developed by Maotong Technology (Beijing) Co., Ltd. / Jinan Maotong Inspection Equipment Co., Ltd. It is specifically designed for quality control on food and beverage filling production lines, used to determine the liquid level qualification of sealed, opaque containers and automatically reject non-conforming products.
Core Working Principle
It operates based on X-ray (high-frequency ray) transmission detection:
An X-ray source emits a constant beam of high-frequency rays/X-rays toward containers (e.g., easy-open cans) moving along the conveyor.
As a container passes through the ray channel, the liquid and the headspace gas (air) absorb the rays differently due to density contrast—the liquid absorbs more radiation (resulting in a weaker post-penetration signal), while the gas region absorbs less (stronger signal).
The ray receiver/detector captures the intensity distribution of the transmitted signal, creating distinct projection/grayscale differences.
The control system (embedded system synchronized with encoder positioning) processes the signal values in real time and compares them against the standard liquid level threshold set via the HMI:
✅ Normal level → Container proceeds to the next process.
❌ Low/high level (underfilled) → Audible-visual alarm + automatic rejection.
Key Point: No drilling, no contact with the product, no damage to the container. It solves the problem of visually inspecting fill levels inside opaque, sealed cans.
Key Features
Item | Description |
|---|---|
Detection Method | High-frequency ray / X-ray transmission, non-contact |
Target Containers | Easy-open cans (aluminum/steel), cartons, certain PET/glass/ceramic bottles, and other sealed containers |
Detection Accuracy | Up to approximately ±1 mm (reported precision around 0.75 mm, depending on configuration and can type) |
Detection Speed | Suitable for high-speed lines, up to approximately 1,500 containers/minute |
Safety Design | No isotopic radiation source; automatic beam shutdown when idle; protective shielding and safety interlocks per regulatory standards |
Construction & Environment | Stainless steel enclosure, sealed design resistant to fog and water droplets; separate detection cabinet and control cabinet for noise immunity; embedded OS for stable long-term operation |
Operation | 7-inch touchscreen HMI (Chinese interface); flexible recipe switching for different can types; encoder-synchronized rejection unaffected by line stops or speed variations |
Typical Application Scenarios
Beverage/Beer Can Lines: Detects underfilling (insufficient volume) and automatically rejects defective cans to ensure net content compliance.
Food Aseptic Carton / Other Sealed Packaging: Online quality control of fill levels.
Broadly applicable to non-contact liquid level monitoring for sealed containers in chemical, pharmaceutical, and related industries (though this specific Maotong model is primarily targeted at “inspection/rejection” applications in food & beverage filling lines).
Summary in One Sentence
The Maotong High-Frequency Ray Liquid Level Detector functions like an “X-ray vision scale” installed on a filling line: it uses X-rays to penetrate opaque containers such as easy-open cans, distinguishes liquid from gas based on differential radiation absorption to judge whether the fill level is correct, and automatically ejects underfilled cans—all without contact and at high online speeds.
If you are evaluating procurement or preparing technical documentation, I can also help organize a selection checklist tailored to your specific can dimensions/material, line speed (containers/min), and installation space constraints.
