X-ray inspection isn't a replacement for metal detection — it's a different detection technology that covers a different, and in some cases wider, range of contaminants. Before specifying one, it's worth being precise about what it actually adds over what you may already have.
Contaminant Coverage: X-ray vs Metal Detector
| Contaminant | Metal Detector | X-ray |
|---|---|---|
| Ferrous metal | Yes | Yes |
| Non-ferrous metal | Yes | Yes |
| Stainless steel (in product) | Limited | Yes |
| Glass, stone, ceramic | No | Yes |
| Bone, dense rubber | No | Yes |
| Metal in foil packaging | No | Yes |
| Missing / broken product | No | Yes (mass comparison) |
The two rows that most often drive a buying decision are stainless steel and foil packaging. Metal detectors have a well-known limitation on stainless steel — its magnetic and conductive properties sit closer to many food and chemical products than iron or aluminium do, making it the hardest contaminant type to reliably detect. And any product packaged in foil or metalised film is effectively invisible to a metal detector's field, regardless of what's inside — the packaging itself triggers false signals or masks real ones. X-ray inspection doesn't have either limitation.
The mass-comparison capability — flagging missing or broken product by weight variance within the same x-ray pass — is a capability metal detection and standalone checkweighing don't offer in a single unit.
Compliance
ENZAC's x-ray inspection systems are CE certified and HACCP-compliant, meeting EU and FDA guidelines for food x-ray inspection. For export-facing food and pharmaceutical manufacturers, this compliance documentation is often a customer or regulatory requirement, not optional.
Key Capabilities to Confirm in Your Spec
- Multi-contaminant detection in a single pass — simultaneous metal, glass, stone, and bone detection without needing separate inspection stages
- Foil and metalised film compatibility — confirm this explicitly if your packaging uses foil or metalised laminate, since it's the main reason to choose x-ray over metal detection in the first place
- Automatic reject — no operator action required on detection, consistent with how ENZAC's other inspection equipment (metal detectors, checkweighers) operates
- X-ray image archive — retained inspection images for compliance documentation and audit trail, useful for customer or regulatory review after the fact
Why X-ray Specification Is Always Product-Specific
Unlike some of ENZAC's other equipment lines, x-ray inspection doesn't have a simple published model table — specification depends on product type, packaging material and thickness, belt speed, aperture size, minimum contaminant size required, and the regulatory requirements of your export market. ENZAC builds a specification matched to these variables, typically returning a full spec within 5 working days of receiving product details — longer than the standard 2-working-day quote turnaround on ENZAC's other equipment lines, reflecting the more customised nature of x-ray specification.
When X-ray Makes Sense Over Metal Detection Alone
If your product is packaged in foil or metalised film, if stainless steel contamination is a realistic risk in your process (common downstream of stainless equipment wear), or if your customer or export market requires detection of non-metallic contaminants like glass or bone, x-ray inspection is solving a problem metal detection structurally cannot. If none of those apply, a well-specified metal detector — potentially paired with a grate magnet separator for sub-threshold contamination — may be the more proportionate investment.
Review the full X-ray Inspection System equipment page for detection capability and compliance detail.
Ready to talk about your x-ray inspection?
ENZAC specifies and supplies x-ray inspection systems in Malaysia. Send us your product, packaging, and export market details and we'll return a full specification within 5 working days.