Views: 1412 Author: Jeannie Publish Time: 2026-08-05 Origin: Site
【219】Coil Diameter from 0.0119mm to 200mm
Late last year, a hearing aid manufacturer approached us. Their micro-coil supplier had suddenly ceased production, and they urgently needed a replacement. They had searched everywhere but found that fewer than three domestic factories could produce such small coils – and all of them quoted lead times of two to three months. Their procurement manager was anxious: "We can't afford a production stoppage. Can you help us in an emergency?"
I took them to our microscope to look at a batch of hearing aid coils we were producing – just 0.5mm in diameter, smaller than a sesame seed. He stared at them for a long time and asked, "How small can you go?" I said, "The minimum is 0.0119mm." He was stunned: "0.0119mm? That's thinner than a human hair, isn't it?"
FUYING's inductive coil diameter range spans from 0.0119mm to 200mm. What does that range mean? It means we cover everything from the most precise medical implantable devices to large industrial sensors. It's not easy for customers to compare us with other suppliers, because there are only a handful of factories worldwide with this scale of capability, and they're all at FUYING. That's not a tagline – it's the result of twenty years of technology accumulation. From the finest micro-coils to the largest industrial-grade coils, each requires different winding equipment, different tension control, and different soldering processes. Factories that can make small coils can't make large ones, and those that can make large ones can't make small ones – but FUYING can do both.
One of our industrial sensor clients once told me, "We used to search for coil suppliers separately – one for small sizes, another for large ones. The management overhead was enormous, and quality was inconsistent. Then we found FUYING – they could handle every spec with stable quality – and we've never switched since." That's FUYING's true value – not that we make one type of coil well, but that we can take on everything, from the smallest to the largest, from the simplest to the most complex.
Once, an automotive electronics client visited with a sample whose inner diameter was only 0.5mm. He said, "We asked four factories about this spec – none of them could do it. Can you?" I said, "Take a look at our product catalog first." When he opened it and saw our minimum diameter listed as 0.0119mm, he immediately said, "Looks like I came to the right place."
Diameter coverage with few rivals worldwide. FUYING Coils – the all-around player from small to large.