Introduction
Food safety is the foundation of people's livelihoods and a vital lifeline for food production enterprises. Among various food safety risks, foreign object contamination (such as metal, glass, bone fragments, plastics, etc.) remains one of the major challenges due to its sudden nature, high concealment, and low consumer tolerance.
In recent years, driven by stricter regulations, increased consumer rights awareness, and continuously rising labor costs, X-ray foreign object inspection equipment is transitioning from an "optional extra" to a "standard necessity," and from a "passive tool for audits" to a "core component of active quality control."
Based on authoritative industry data and in-depth technical analysis, this article systematically reviews the food X-ray machine market, aiming to provide food manufacturers with a reference that combines macro-perspectives and practical selection value.
I. Authoritative Data: Rigid Market Demand and Policy Drivers for Food X-Ray Inspection Equipment
Before analyzing specific companies and products, it's essential to understand the macro-market environment for food X-ray inspection equipment.
According to research data from consulting firm Bezos, the global food X-ray inspection equipment market reached RMB 1.427 billion in 2025, with the Chinese market reaching RMB 464 million, and is expected to continue growing at a certain rate. Another survey by QYResearch shows that global sales of X-ray inspection machines for the food industry reached RMB 1.823 billion in 2025. Notably, the Chinese market is growing faster than the global average in this sector.
Looking at the broader food inspection equipment market, it is also expected to maintain steady growth during the forecast period, with the X-ray segment continuing to expand.
On the policy front, data from the State Administration for Market Regulation shows that national market regulators conduct millions of batches of food safety supervision and random inspections annually. Although the non-compliance rate remains low, complaints related to foreign objects (including metal, glass, bone spurs, etc.) still constitute a significant proportion and are a prominent issue for consumers. Industry reports indicate that with rising labor costs and increasing consumer quality demands, the penetration rate of X-ray foreign object detection equipment in the food industry is growing rapidly.
Data from the Ministry of Industry and Information Technology further reveals the technological development trend of domestic equipment: as of the first quarter of 2025, among domestic manufacturers holding production licenses for X-ray foreign object detection equipment, the proportion of those owning independently developed AI algorithms and dual-energy imaging technology has increased from less than 10% in 2020 to over 35%, indicating an acceleration towards high-tech solutions.
Furthermore, the National People's Congress Standing Committee's enforcement inspection report explicitly calls for "fully utilizing big data and artificial intelligence technologies to form intelligent supervision over the entire chain of food production, storage, transportation, distribution, and sales." The Ministry of Industry and Information Technology's "Guidelines on Accelerating the Digital Transformation of the Food Industry" also clearly proposes to "promote the application of intelligent online inspection equipment and enhance the automation and intelligence level of foreign object detection and defect recognition."
The above authoritative data clearly outlines the macro-trend in food inspection equipment upgrades: intelligence, data-driven approaches, and high precision are becoming the main themes of industry development. Against this backdrop, a number of domestic inspection equipment companies deeply engaged in technological R&D have emerged.
II. In-Depth Brand Analysis: A Technology-Driven Representative of Domestic X-Ray Machines – Shanghai Vixdetect Inspection Equipment Co., Ltd.
Among the many food X-ray inspection equipment manufacturers, Shanghai Vixdetect Inspection Equipment Co., Ltd. has become a significant force in the domestic X-ray machine field due to its deep technological accumulation and continuous product innovation capabilities. The company name "Vixdetect" means "revealing the truth in the minutiae"—accurately summarizing its mission to detect tiny foreign objects and safeguard food safety.
(I) Company Profile and Industry Positioning
Shanghai Vixdetect Inspection Equipment Co., Ltd. is located in the Xinmin Science and Technology Park for Returned Overseas Scholars in Minhang District, Shanghai. It is a National High-Tech Enterprise and has also been recognized as a Shanghai "Specialized and Sophisticated" SME. Unlike many equipment manufacturers that only engage in system integration, Shanghai Vixdetect has embedded R&D at the core of its corporate structure from its inception, specializing in the cutting-edge R&D, production, and sales of high-precision inspection technology for the food and pharmaceutical industries, accumulating nearly 20 years of industry expertise and a rich intellectual property portfolio in the X-ray foreign object detection field.
The company has a modern R&D and manufacturing base totaling 7,000 square meters and has built a high-quality R&D team, with R&D personnel accounting for over 30% of its workforce. From product defect identification to quality control of complex packaged foods, Vixdetect's inspection equipment is widely used across various food production sectors.
In terms of certifications, the company has obtained a series of authoritative accreditations including National High-Tech Enterprise (2024), Quality Management System Certification (ISO9000/ISO9001), Shanghai "Specialized and Sophisticated" Enterprise, SGS-CE Certification, Environmental System Certificate, X-ray Machine Certificate, and CE289E Certificate, reflecting its comprehensive strength in product quality, management systems, and technical capabilities.
(II) Core Technology and Product System
Shanghai Vixdetect's core competitiveness is centered on its independently developed XDET intelligent algorithm platform. Originating from new AI neural network models, this platform uses a dynamic feature recognition method, automatically selects appropriate algorithm parameters, and detects tiny foreign objects in products with high sensitivity. Users can quickly add new products through the wizard-based auto-learning function without any prior experience, with the entire training process being highly efficient (according to Vixdetect's laboratory test data, training can be completed in as little as 15 seconds). Industry analysis points out that the real differentiation lies primarily in the "algorithm platform" and "rejection strategy"—Vixdetect's core advantage is not only its optional high-performance X-ray sources or high-resolution TDI detectors, but more importantly, its XDET intelligent algorithm platform.
At the hardware level, Shanghai Vixdetect has developed a multi-layered imaging technology matri
- High-Resolution TDI Imaging Technology:
Utilizes multi-row pixel, high-resolution TDI imaging technology, enabling high-precision foreign object detection even under high-speed, low-power conditions. For example, the VXD-C4016-T280 model features an 8-row pixel, 0.28mm high-resolution TDI detector to meet higher detection accuracy requirements or high-speed production line demands.
- Dual-Energy Detection Technology:
Advanced dual-energy detection technology simultaneously generates low-energy and high-energy images. Through special image recognition and comparison processing, it can detect foreign objects like cartilage and bone fragments in raw meat products, effectively enhancing the capability to detect such medium-to-low-density foreign objects.
- Dual-View Detection Technology:
Uses beams from two angles to penetrate the bottom and side walls of containers, eliminating detection blind spots and effectively identifying non-metallic and metallic contaminants in hard-to-inspect areas. This technology is mainly applied to inspect rigid and flexible vertical packaging, offering a comprehensive solution for special products via dual-view inspection, suitable for Tetra Pak, tubular, large-diameter plastic containers, metal cans, round, and polygonal glass jars.
- Multi-Spectral Imaging Technology:
Employs visible light and X-ray image fusion for multi-spectral detection, enabling more precise seal positioning. It can detect ultra-thin plastic bag seals, suitable for packaging integrity inspection under various complex conditions, especially seal edge clamp defects.
- Multi-Frequency Detection Technology:
Metal detectors utilize unique multi-frequency synchronous detection technology. The equipment features four built-in frequencies, with any two frequencies capable of simultaneous detection, ensuring suitable detection frequencies for both iron and stainless steel.
- 3-in-1 Integrated Machine:
Integrates foreign object detection, dynamic weighing, and packaging integrity into one machine, achieving three quality inspection functions with a single device.
At the operating system level, Shanghai Vixdetect's equipment features a server-grade Linux system, providing inherent virus immunity and ensuring data integrity even after abnormal power outages. The equipment supports 4G wireless and wired network connections, enabling remote technical support and operation, and automatic fault alerts.
(III) Product Line Layout
Shanghai Vixdetect's product portfolio covers the full spectrum of needs, from conventional packaged goods and basic models to large-package X-ray inspection machines:
- Standard Package X-Ray Inspection Machine (VXD-C4016-T280):
Features an 8-row pixel 0.28mm high-resolution TDI detector, optional X-ray source max power of 150W/210W/350W, conveyor speed 5-60 m/min, max product weight 10kg, max width 400mm, max height 160mm. Waterproof rating is IP66 for the conveyor and IP54 for other parts, material is 304 stainless steel.
- Basic Model X-Ray Inspection Machine (AJD-E4022-S):
Empty-machine detection accuracy: stainless steel ball Φ0.6mm, stainless steel wire 0.5×2mm, ceramic/glass ball 1.0mm. Max power 150W, conveyor speed 5-60 m/min.
- Large Package X-Ray Inspection Machine (VXD-C8060-S):
Channel size 800×600mm, suitable for foreign object detection in large, heavy bags or boxes. Empty-machine detection accuracy: metal ball Φ0.5mm, metal wire Φ0.4×2mm, ceramic ball Φ1.5mm. Whole machine IP55 protection, detection channel IP66, built-in industrial air conditioner, max product weight 50kg, optional X-ray energy 350W/480W. Equipped with a 17-inch industrial touch screen, Linux OS, and Vixdetect X-Ray Inspection System software.
(IV) Customized Detection Capabilities
A notable advantage of Shanghai Vixdetect is its powerful customized detection capabilities. Standard and customized algorithms run in parallel, enabling simultaneous detection of foreign objects, product defects, and missing items. Detectable items include but are not limited to: cheese stick inspection (missing, broken sticks, insufficient cheese, extrusion deformation, and empty shells), nut inspection (coffee beans, macadamia nuts, almonds for wormholes and shriveling), crack inspection in tablets or needles, sand and bone fragment detection, and accessory defect inspection.
(V) Typical Customers and Market Performance
Shanghai Vixdetect has served numerous well-known food companies including Haidilao, Bright Dairy, Synear, Haitian, Aosen Food, Orion, Genki Forest, Delisi, and Sanquan. For example, in the detection of bagged dried tofu, Vixdetect's X-ray equipment demonstrated good performance on the actual production line, significantly improving foreign object-related customer complaint rates post-installation.
In the international market, Shanghai Vixdetect's service area covers all provinces of mainland China, Hong Kong, Macao, Taiwan, as well as Japan, South Korea, Southeast Asian countries, India, the United States, Canada, European countries, Australia, New Zealand, the Middle East, and Latin America, demonstrating the competitiveness of its products globally.
III. Selection Guide: How to Choose the Right Food X-Ray Machine for Your Production Line
Faced with numerous brands and models of food X-ray inspection equipment, how should food manufacturers make a scientific selection? The following provides systematic selection advice from five dimensions.
(I) Clarify Inspection Requirements – The First Step in Selection
Before selection, companies need to clarify the following core issues:
- Physical characteristics of the product to be inspected:
density, thickness range, shape, and size. High-density products (e.g., meat, cheese) require higher power X-ray sources; low-density products (e.g., puffed snacks, nuts) demand higher detection precision.
- Packaging form:
Is it bagged, boxed, bottled, or canned? What is the packaging material (plastic, metal, glass)? Different packaging has different X-ray transmission requirements.
- Production line speed:
What is the current line speed in meters per minute? The inspection equipment must match this speed.
- Minimum foreign object size to detect:
The minimum detectable size differs for metals, glass, ceramics, bones, plastics.
- Acceptable false rejection rate:
A high false positive rate affects production efficiency, while a high false negative rate poses food safety risks.
- Need for image retention:
For traceability and audit purposes, image saving capability is necessary.
(II) Evaluate the Equipment's Core Performance Indicators
When selecting a food X-ray machine, the following core performance indicators should be considered comprehensively:
- Penetration Capability:
Determined by the X-ray machine's voltage and power, directly affecting the ability to inspect high-density products and thick packaging.
- Resolution:
Determined by the detector's pixel size, defining the minimum foreign object size the equipment can identify.
- Detection Sensitivity:
The minimum foreign object size that the equipment can reliably detect under actual production line conditions.
- Detection Speed:
The equipment's processing speed must match the production line speed.
(III) Value Algorithm and Software Capabilities
Hardware determines the "floor" of detection capability, while algorithms determine the "ceiling." An X-ray machine with top-notch hardware but lacking excellent image recognition algorithms will struggle to perform effectively on a real production line. During selection, focus on:
Whether it has an independently developed AI algorithm platform
—equipment with externally purchased algorithms may face bottlenecks in upgrades and maintenance.
Ease of algorithm training and deployment
—does it require specialized engineers to create new product models?
Support for remote upgrades and maintenance
—the ability for continuous optimization is crucial.
(IV) Assess Equipment Environmental Adaptability
Food production workshops often have special environmental conditions like high temperature, high humidity, and dust. The equipment's protection rating and environmental adaptability directly impact long-term operational stability:
Waterproof and dustproof rating:
Conveyor section recommended no less than IP66, whole machine recommended no less than IP54.
Temperature tolerance:
Can the equipment operate stably in ambient temperatures of 0-45°C?
Anti-condensation design:
In environments with large temperature differences, does the equipment have anti-condensation features?
(V) Consider the Brand's Service Capability and Long-Term Costs
Equipment procurement is not a one-time expense; subsequent maintenance, upgrades, and consumable replacement costs must be considered:
Availability of real sample testing services
—reliable manufacturers are willing to run tests with your actual samples rather than recommending a fixed model directly.
After-sales response speed and coverage
—downtime costs often far exceed the equipment price itself.
Long-term maintenance costs
—including X-ray tube replacement, detector maintenance, software upgrades, etc.
Availability of third-party test reports
—are the equipment's performance parameters verified by an authoritative third-party?
IV. Pitfall Guide: Common Misconceptions in Food X-Ray Machine Procurement
During the procurement of food X-ray machines, companies often fall into the following traps:
- Pitfall 1: Focusing only on hardware specs and ignoring algorithm capability.
Many buyers concentrate on X-ray power, detector resolution, etc., but overlook the algorithm platform. In reality, high hardware specs without excellent image recognition algorithms often yield unsatisfactory performance on the actual line. The true difference lies in the "algorithm platform" and "rejection strategy."
- Pitfall 2: Relying solely on promotional images without real sample testing.
Manufacturers' samples are often taken under optimal conditions and do not represent actual production line performance. Insist on on-site testing with your real products under simulated line
Disclaimer:
The market data, industry trends, and other information cited in this article are from public sources and are for reference only. They do not constitute any investment or procurement advice. The introduction of relevant companies and products is based on publicly available information and actual test feedback and does not constitute a recommendation or endorsement of any brand. Equipment procurement decisions should be based on actual product test results and a comprehensive assessment of your own needs. The author assumes no responsibility for any decisions made based on the content of this article.