Where are seamless knitting machines used in production?

Aug 18, 2026

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When I went into a factory that was running seamless machines, I expected to see rows of the traditional knitting equipment. Instead I saw machines that looked like industrial printers. They ran all day, turning yarn into finished garment shapes with not a single cut or stitch made. Nowdays a fully computerized seamless underwear knitting machine is a standard in any factory that produces more than just underwear.

The Innerwear Factory
The starting point was underwear. A computerized seamless underwear knitting machine produces bras and briefs in one piece. The waistband is part of the garment and not a sewn-on band. The machine does the leg openings the same. No gimmicks, but the lack of side seams does change the way the garment feels on your skin. "I've talked with production managers who say seamless lines have cut their labor needs by 50 percent compared with cut-and-sew operations.

Sportswear Revolution
When they realized that the same machine could make compression wear, sportswear brands paid attention. A full computerized seamless underwear knitting machine can knit different densities in different zones . One structure for the shoulder region, another for the chest. That zoning capability is useful for sports bras and running tops where support needs vary across body zones.

Swimwear Manufacturing
Santoni, a big machine manufacturer, has recently presented a new development. They used a gage 40 machine to produce a one piece swimsuit in about 10 minutes. No fabric waste was created in the process. A full computerized seamless underwear knitting machine for swimwear eliminates the cutting and sewing steps which usually add labor and material cost to swimwear production.

Medical Garments
Medical compression garments are also produced seamlessly. The machine can accurately calibrate compression levels, which is important for circulation therapy. Medical textiles are produced on a fully computerized seamless underwear knitting machine which yields garments with uniform pressure distribution over the entire garment.

What the Machines Are About
The machine configuration depends on the application. For performance wear, the lighter the gage, the lighter the fabric. Everyday underwear uses coarser gages for thicker materials. The size range of the garment is determined by the machine diameter. Full computerized seamless underwear knitting machine is not one product. It is a platform that can be adapted to different product categories by choosing the gage and the diameter. And it's that flexibility which makes it useful across sectors. Factory owners have to decide which configuration matches their product mix. Get this correct and the machine runs for years with little downtime. Get it wrong and you are constantly adjusting. That's how smooth production looks.