This Week’s Case Study: Achieving “Zero Missed Defects” in Fully Automatic Inspection of Nylon Nuts
In mass production, ensuring reliable quality assurance through 100% inspection is essential for safety and consistency.
This week, we’d like to introduce a case study of inspecting 250,000 nylon nuts (M12).
Using a special fisheye-like camera, the system inspects the internal threads,
while the top camera accurately detects crimping defects in the nylon insert.
This setup provides a simple yet highly effective inspection process.
We often hear questions like,
“Why was this defect missed?” or “It’s such an obvious flaw — how could that happen?”
The truth is, most operators are serious and work very hard.
The real issue lies in the sheer volume — hundreds of thousands of pieces.
No matter how skilled a human inspector may be,
over long hours, visual fatigue and optical illusions make it impossible to maintain perfect accuracy.
That’s why we believe automating repetitive inspection processes is the right solution.
With recent advances in color camera technology and AI-based inspection,
it has become possible to detect even minute scratches and subtle color irregularities with much higher precision.
If you are currently facing challenges such as:
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Hitting the limit of manual visual inspection
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Wanting to prevent defective parts from escaping detection
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Seeking a low-cost automation solution
We encourage you to contact us.
At NANO, we offer customized systems with fast delivery and exceptional cost performance.
Let us help your production line achieve true “Zero Missed Defects.”
Have a great week ahead!
📩 For inquiries, please contact:
FORTUNE CROSS (THAILAND) CO.,LTD / NANO SEIMITSU CO.,LTD. Mobile: +66 (0)61-572-1700 (Attn: Yada)
#NANO_SEIMITSU #Nylon_insert_nut #AOI_sorting


