Views: 0 Author: Site Editor Publish Time: 2026-08-08 Origin: Site
Foreign object contamination is one of the costliest risks in food manufacturing. When choosing inspection equipment, buyers often ask the same question: metal detector or X-ray?
There is no single "best" answer — it depends on your product, packaging and compliance needs. Here is what you need to know.
Consideration | Metal Detector | X-Ray Inspection |
|---|---|---|
Metal contaminants (Fe / non-Fe / SUS) | Excellent | Excellent |
Bone, glass, stone, dense plastics | Not detected | Detected |
Aluminum foil / metallized packaging | Limited | Excellent |
Investment cost | Lower | Higher |
Typical sensitivity | Fe ≥ 0.6 mm, SUS ≥ 1.5 mm | Sub-millimeter on dense materials |
Metal detector uses an electromagnetic field to catch metal contamination. Fast, affordable, compact — the proven first line of defense for most food, pharma and confectionery lines. Advanced models use auto-phase-balance to handle wet, salty or sugary products with few false rejects.
X-ray system uses density imaging with AI-driven algorithms. It finds metal plus bone, glass, stone and dense plastics — and works through aluminum foil packaging. It also verifies product integrity (fill level, broken items) in a single pass.
Choose a metal detector when: your risk is mainly metal, packaging is metal-free, or budget and floor space are priorities. Chaoqiang's CQ-818 and CQ-910K series offer one-button setup, 100-group product memory, and hygienic 304 stainless steel construction.
Choose X-ray when: your product may contain bone or glass (frozen seafood, poultry, RTE meals), you use foil or metallized packaging, or retailers require more than metal detection.
Prefer both? Combination systems integrate metal detection + checkweighing (accuracy up to ±0.05 g) into one space-saving unit with centralized control and synchronized rejection — two protections, one investment.
Chaoqiang systems are built to CE, ISO 9001, HACCP and IFS standards, backed by 18 years of R&D and 100+ countries served. Our engineers will test your actual product and recommend the right configuration.
Ship every order with confidence.
