Brief introduction
Our extruded aluminum plate fin heat sinks are meticulously designed to meet the thermal management needs of 1/1 brick AC/DC converters. With high-density fins, these heat sinks offer exceptional heat dissipation. This makes them a reliable choice for power modules and electronic appliances, ensuring optimal performance and longevity.
Kaixin Aluminum has over 15 years of experience in delivering advanced thermal solutions. We have been a trusted partner to numerous well-known electronic component manufacturers, consistently providing high-quality, customized heat sinks to meet specific design requirements. Our long-standing partnerships, some spanning more than a decade, are a testament to our commitment to quality and customer satisfaction.
We are committed to providing our customers with competitive pricing and premium quality heat sinks. Our goal is to enhance your business competitiveness and capabilities in the marketplace. To achieve this, we continuously advance our skills and stay updated with the latest industry innovations, ensuring that our products remain at the forefront of technology.
Basic Info
| Item Name | Extruded Aluminum Plate Fin Heat Sink |
| Model NO. | KX-01069 |
| Material | Alu 6063-T5/6060-T6 as specification |
| Surface treatment | Silver anodize or as the requirement |
| Size | Customized size |
| Manufacturer label | OEM available |
| Sample Lead Time | 7-15 Working Days |
| Origin | Foshan, China |

Aluminum Plate Fin Heat Sink-the best thermal solution for your electronic devices
Kaixin extruded aluminum plate fin heat sinks are designed for superior thermal management in electronic devices. With higher fin densities, they maximize heat dissipation, ensuring efficient cooling and enhanced performance. Made from high-quality aluminum, they are lightweight, durable, and suitable for electronic appliances.
Improve heat transfer and diffusion performance
Shell shape can meet module requirements (traditional stamping such as multi-hotspot have unmalleable shapes and designs)
Superior structural strength than the opposing heat transfer tube and the copper vapor chamber
The aluminum isothermal plate manufacturing process has greatly reduced the production cost and greatly improved the reliability of the product


Industrial-grade 6063-T5 Aluminum: Stable, Highly Conductive, and Easy to Machine
We use 6063-T5 industrial aluminum, which offers a high thermal conductivity of 201 W/m·K, delivering superior heat-transfer performance compared with similar materials. Fully compliant with ASTM B221, this material provides excellent strength and machinability, making it ideal for CNC precision machining and secondary thermal-enhancement structures.
Who we are
About our company
Kaixin aluminum is a professional aluminum heat sink manufacturer located in Foshan, China. With the knowledge gained from over 15 years of experience in the aluminum industry and equipped with world-class advanced machining equipment, we not only provide our customers with high-quality heat sinks but also innovative and cost-effective thermal solutions for our clients to meet the increasingly diversified heat sinks demand in the market.
Our machining capabilities include:
Kaixin factory has a production capacity of 200 tons of aluminum per month, and our CNC machining capabilities can process up to 55,000 heat sinks per month. Aluminum extrusion (600-5500T aluminum press lines, can produce heatsink with width of 500mm);
We operate over 25 CNC machining centers (3-axis, 4-axis, and 5-axis), with dimensional tolerances controlled within ±0.02 mm. Our capabilities include CNC milling, turning, drilling, bending, punching, stamping, welding, friction stir welding (FSW) and laser cutting.
Kaixin provides anodizing (10–15 μm black film), powder coating, electroplating, painting, and degreasing. These surface treatments significantly improve surface durability and corrosion resistance-up to 2–3 times higher performance.

Strict Quality Control management
Apart from offering a wide range of heat sink solutions, we know that long-term partnerships are built on the consistent quality of products and services. To ensure high standards, our on-site quality control, inspection procedures, and comprehensive QA plans are implemented in-house, fully complying with ISO 9001 and ISO 14001 standards. All products meet RoHS and REACH requirements. When necessary, third-party inspection authorities are welcome to verify quality before shipment.
Hospitality service
Our service-oriented Exporting team dedicates to serve you a superior purchasing experience. The integration of manufacturing and trading enables us to provide on-site quality monitoring throughout the whole manufacturing procedure. We are more than to answer all your questions and guide you through the ordering process. We are here listening, 24/7.


Measurement & Inspection
Comprehensive Testing Equipment to Ensure Your Every Heat Sink Meets Design Standards.
Coordinate Measuring Machine (CMM): Provides high-precision 3D dimensional inspection, ensuring machining tolerances are controlled within ±0.02 mm for each batch.
Micrometers / Optical Measuring Instruments / Surface Roughness Meters: Used for precise dimension and surface roughness checks, guaranteeing accurate contact surfaces and mounting holes.
Hardness Tester: Verifies the strength of aluminum material and machined parts, ensuring robust and durable heat sink structures.
All inspection procedures are integrated into the ISO 9001 / ISO 14001 management system, ensuring high reliability and traceability for mass production.
Engineering & R&D Excellence
Professional Engineering Team Focused on Efficient Heat Sink Design and Innovative Mold Development
Structural Design & Fin Optimization:
By optimizing fin thickness, spacing, and layout, we maximize the heat dissipation surface area and thermal efficiency.
Innovative Mold Development:
With our in-house mold workshop, we can rapidly develop customized profiles, shorten prototyping cycles, and reduce mass production costs.
OEM Capabilities:
We provide complete heat sink solutions based on your drawings, offering one-stop delivery from design and prototyping to large-scale production.
Close R&D and Production Integration, ensure manufacturability and consistent quality in mass production, delivering reliable, cost-effective products for wholesale clients.


Stable Supply Chain & Material Assurance
High-Quality Aluminum Sourcing:
Kaixin works closely with major aluminum suppliers to ensure stable, traceable raw material quality.
Qualified Supplier List:
All critical auxiliary material suppliers undergo strict evaluation and comply with ISO, RoHS, and REACH standards.
Delivery Assurance & Inventory Management:
Through scientific production planning and safety stock, standard products can be shipped quickly while meeting the delivery requirements of large-volume orders.
Reliable Supply Chain:
Kaixin's comprehensive supply chain system ensures wholesale clients receive continuous and dependable product supply for large-scale procurement.
Application of Aluminum Plate Fin Heat Sink
LED Lighting
High-power LED fixtures require efficient heat dissipation to extend lifespan and maintain consistent light output.
01
Telecom & Networking
Base stations, routers, and fiber-optic equipment rely on heat sinks for long-term stable operation.
02
Industrial Power & Control Systems
Inverters, switch-mode power supplies, and industrial controllers need effective cooling to prevent overheating.
03
Renewable Energy & EV Inverters
EV inverters, charging stations, and solar inverters demand high-performance, large-area heat sinks for optimal thermal management.
04
Frequently asked questions
Q: How do you control the quality?
A: 100% inspection before delivery. We have on-site QC staff to do the checking and inspection multiple times. The surface finish, dimensions, and quality are inspected 100% before packing.
Q: What are your payment terms?
A: We usual accept 30% T/T payment in advance and the balance payment before shipment. Other payment terms are also negotiable.
Q: Would you accept OEM and print our logo on the carton?
A: Yes, OEM service is available, we can produce according to your specific requirement.
Q: Can I get a sample for reference?
A: We are more than happy to send samples for your testing, all you need to pay is the express cost.
Q: What is your delivery time?
A: Usually 7-15 days for samples, 10-20 days for mass production orders.
Q: What's the thickness for anodizing? Can you do 15μm?
A: We can do the anodizing thickness from 10 μm to 25μm. or according to your specific requirements.
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