Detect surface and internal defects with AOI, AI vision and X-ray.
Independent defect inspection covering surface flaws (scratches, burrs, cracks, dents, contamination, color variation) and internal flaws (porosity, shrinkage, cracks, inclusions) using AOI, AI vision systems and X-ray.
Defect inspection separates good product from bad before it reaches your customer. Our independent defect inspection service in China combines automated optical inspection (AOI), AI-based machine vision, 2D X-ray radiography and — when internal visibility is required — industrial CT, to detect, classify and quantify defects on parts produced by your Chinese suppliers.
Unlike a supplier's own QC, our inspection is documented with calibrated equipment, statistically valid sampling plans (AQL per ISO 2859-1 or customer plan), photographic evidence per defect and a clear conformance verdict. The report is structured so it can be used directly in shipment-hold decisions, claim negotiations, or as PPAP evidence.
We inspect for both cosmetic defects on visible surfaces — where customer expectation is the acceptance criterion — and for functional defects that affect performance: hairline cracks in cast housings, voids in welds, contamination on sealing surfaces, or solder defects on PCB assemblies. Each defect type is logged with location, size and recommended disposition.
Customer names redacted under NDA. Project descriptions reflect the engineering work actually performed.
By default ISO 2859-1 single-sampling at AQL 2.5 for major and AQL 4.0 for minor defects. We follow your own AQL plan or 100% inspection on request.
Yes — we collect customer-supplied accept and reject samples, train and validate a model, then deploy it on the inspection line. Typical training takes 1–2 weeks.
Yes — our engineers travel with portable AOI rigs, lighting and reference samples to sort suspect lots on-site, minimizing logistics and quarantine cost.
Non-destructive 3D X-ray inspection of internal structure, defects and dimensions.
Verify products against engineering drawings and GD&T tolerances.
Verify grade, composition, microstructure and heat treatment.
Tell us about your part — we respond within one business day with scope, methodology and quotation. NDA available before disclosure.