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Daejin Aluminum Co., Ltd.
South Korea
Plastic & Metal Extrusion: Continuous profiles, tubes, and frames
Surface Treatment & Finishing: Anodizing, powder coating, and plating
Thermal Management: Heatsinks, Peltier elements, and industrial fans

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Daejin Aluminum Co., Ltd. (주식회사 대진알루미늄) is an INNO-BIZ certified South Korean manufacturer specializing in aluminum extrusion dies, heatsinks, and thermal cooling profiles. Headquartered in the Gasan Digital complex in Seoul with an additional factory located in Siheung-si, Gyeonggi-do, the company was established in 2011 and is managed by CEO Jae-geun Park.

Daejin Aluminum supports thermal engineers from drawing sketch and extrusion mold development through to extrusion, high-precision machining, and protective surface finishing, catering to both low-volume custom prototyping and high-volume mass production runs.

Offer

Daejin Aluminum offers customized heatsink engineering and aluminum processing capabilities:

  • Semiconductor Device Heatsinks: Aluminum extruded heatsinks engineered for power transistors, thyristors, and semiconductor modules across low-to-high power capacities.
  • Lighting & Luminaire Heatsinks: Tailored heat sinks for high-power LED luminaires, street lamps, and commercial lighting installations.
  • Die & Mold Development: Custom extrusion mold design and tooling fabrication developed directly from client technical drawings and specifications.
  • Secondary Machining & Finishing: Precision cutting, CNC milling, drilling, tapping, bead blasting, anodizing, and coloring treatments.

Tags

heatsinks
anodizing
mold design
aluminum extrusion
led heatsinks
thermal dissipation
semiconductor heatsinks
Industrial Specializations: Plastic & Metal Extrusion: Continuous profiles, tubes, and frames, Surface Treatment & Finishing: Anodizing, powder coating, and plating, and Thermal Management: Heatsinks, Peltier elements, and industrial fans
Headquarter/main address: Daelyung Techno Town 2nd B-106, 33-33 Gasan digital 1-ro, Geumcheon-gu
Seoul
Seoul South Korea
Get Directions
http://www.djheatsink.co.kr
Business Type: Manufacturer
Ownership: Private
Turnover: €1M - €2M
Employees: 10 - 49
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