Choosing the best X-ray inspection system from China starts with the supplier, not the detector.
A capable manufacturer should provide company registration details, a factory address, export experience, and clear product documentation. Ask for a live factory video or arrange an independent audit. A polished brochure is not proof. Review similar food-line installations, inspection speeds, product sizes, and rejection records. Speak with users handling products like yours. Their feedback often reveals response times, software limits, and maintenance habits.
Certifications require careful checking. Request current ISO 9001 documents, CE-related files, EMC test reports, and applicable radiation safety records. Verify the issuing body, model number, test date, and certification scope. Documents must match the machine delivered. Some suppliers show certificates for older models. That detail is easy to miss. Confirm electrical and safety compliance for your destination market. Independent testing before shipment may be worthwhile. Also ask about calibration procedures, image-quality tests, and factory acceptance criteria.
Technical support can determine whether production stays stable. Get written details about installation, operator training, remote diagnostics, spare parts, and response times. Ask who handles urgent problems outside normal hours. A named engineer is more useful than a generic email address. Request sample images using your packaging and dense products. Test detection sensitivity, false-rejection rates, and line integration realistically. Do not accept only a perfect demonstration. Real production is messier. Record every promise in the contract, because memory is unreliable.