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| Test on DLC Coating - 3000 r.p.m. WITHOUT OIL | Practical Testing on Durkopp Adler 767 Machine |
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Coating |
Thread Trimmer |
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| KDH-2284K | Titanium | O | for Zigzag | lubricated |
| KDH-457K | Titanium | O | for Zigzag | lubricated |
| KDH-768TR | DLC | O | for heavy duty | oil free |
| KDH-467TR | DLC | O | for heavy duty | oil free |
| KDH-467A | DLC | ¡@ | for heavy duty | oil free |
| KDH-7.94A(MTQ)-D | DLC | ¡@ | for embroidery | oil free |
| KDH-7.94A(MTQ) | Cr | ¡@ | for embroidery | ¡@ |
| KDH-7.94ATR(MTQ)-D | DLC | O | for embroidery | oil free |
| KDH-7.94ATR(MTQ) | Cr | O | for embroidery | ¡@ |
| KDH-7.94B-D | DLC | ¡@ | ¡@ | oil free |
| KDH-7.94B | Cr | ¡@ | ¡@ | ¡@ |
| KDH-7.94BTR-D | DLC | O | ¡@ | oil free |
| KDH-7.94BTR | Cr | O | ¡@ | ¡@ |
| KDH-2284K | |||||||
| ¡@ |
 |
¡@ |
 |
¡@ |
For Juki LZ-2280N series Zigzag Stitching Machine It is a hook with Titanium-treated inner hook and hook tip. The hook tip's curve and length is as same as those of Juki 22525877. |
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 |
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| KDH-457K | |||||||
 |
For Singer 457 series Zigzag
Stitching Machine |
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 |
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¡@ | ¡@ | ¡@ | ||
| ¡@ | ¡@ | ¡@ | ¡@ | ¡@ | ¡@ | ||
| KDH-768TR | |||||||
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 |
¡@ |
 |
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For Durkopp Adler 768 single and double needle machine with thread trimmer |
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 |
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 |
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| KDH-467TR | |||||||
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 |
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 |
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For Durkopp Adler 467, 767 single and double needle machine |
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| KDH-467A | |||||||
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 |
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 |
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For Durkopp Adler 467, 767 single and double needle machine |
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| KDH-7.94ATR(MTQ) | KDH-7.94ATR(MTQ)-D | ||||||
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 |
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 |
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alternative: Hirose HSH-7.94ATR(MTQ) Koban KHS12-RYP |
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| KDH-7.94A(MTQ) | |||||||
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 |
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alternative: Hirose HSH-7.94A(MTQ) Koban KHS12-RY |
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| KDH-7.94BTR-D | |||||||
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 |
¡@ | ¡@ | ¡@ |
alternative: Hirose HSH-7.94BTR Koban KHS12-SPD2 |
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| KDH-7.94B | KDH-7.94B-D | ||||||
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 |
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 |
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alternative: Hirose HSH-7.94B Koban KHS12-S |
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Properties of Diamond-Like
Coating (DLC) :
Amorphous and hydrogenated amorphous carbon films have high
hardness, low friction, electrical insulation, chemical inertness, optical
transparency, biological compatibility, ability to absorb photons
selectively, smoothness, and resistance to wear. It is one of the best
coating method for high speed machine. DLC coating has higher resistance to
wear comparing with Chromium or Teflon coating. It allows Kardia rotary hook running
without lubrication and have high durability.