We make extruded aluminum heat sinks for electronics, automotive systems, and industrial equipment. Our products are designed to cool effectively so components run reliably and last longer.
Need a standard or custom solution? Check out our catalog or contact us today to find the right heat sink for your application.
Please see the drawing below. We support customization.
Delivery & Lead time
21-30 days after the drawing is confirmed & done payment
Color and Finish
Common colors: mill finish, white color, flat black, light white, grey, and matt black. Customized color: we have hundreds of options of colors to offer to the customers.
Please see the drawing below. We support customization.
Delivery & Lead time
21-30 days after the drawing is confirmed & done payment
Color and Finish
Common colors: mill finish, white color, flat black, light white, grey, and matt black Customized color: we have hundreds option of colors to offer to the customers
Aluminum heat sink extrusions have a combination of practical and performance-driven features. Here are the highlights:
1. High Thermal Conductivity
Aluminum is great at conducting heat, it can transfer and dissipate heat away from sensitive components. This ensures performance consistency and prevents overheating in critical systems.
2. Lightweight and Strong
Lighter than copper, aluminum is easy to handle and install without compromising strength or durability. It has robust structural integrity for long-term use.
3. Corrosion Resistance
With anodizing surface treatment, aluminum resists corrosion from moisture, chemicals and other environmental factors. This extends its life in harsh conditions.
4. Cost Effective
Aluminum has high thermal performance at a lower cost than copper. It’s a great option for projects that require high performance without going over budget.
5. Custom Designs
Aluminum extrusions can be made in many shapes and sizes to fit specific cooling requirements. From intricate fin patterns to compact profiles, these designs optimize airflow and thermal performance for various applications.
Manufacturing Process
The aluminum heat sink extrusions are manufactured through a precise and efficient process to ensure high performance and reliability. Each step is executed to meet specific specifications and thermal management requirements.
1. Melting and Casting
Aluminum billets made from alloys like 6061 and 6063 are melted. These alloys are chosen for their high thermal conductivity, light weight, and mechanical strength.
2. Extrusion Through a Die
The molten aluminum is pushed through a die to create the desired profile. This process forms complex shapes like fins or channels to maximize surface area for heat dissipation.
3. Cooling and Cutting
After extrusion, the aluminum profiles are rapidly cooled to retain their structure. They are then cut to length to meet application requirements.
4. Post-Processing Enhancements
To improve durability, functionality, and appearance, the extrusions undergo additional processing:
Anodizing: Increases corrosion resistance and thermal emissivity for better heat transfer.
Machining: Refines dimensions and surface finishes to exact tolerances to meet design requirements.
Polishing or Powder Coating: Adds a protective layer and improves aesthetics, making the product suitable for functional and aesthetic applications.
This process produces aluminum heat sink extrusions that excel in thermal management across industries such as electronics, automotive, and renewable energy.
Types of Aluminum Heat Sink Extrusions
Aluminum heat sink extrusions come in different designs to fit specific cooling needs. Each type is optimized for thermal management in various scenarios.
Straight Fin Extrusions
Straight fin extrusions are good for passive cooling systems that rely on natural convection. Evenly spaced linear fins promote airflow and heat transfer in environments with minimal air movement, like low-power electronics or passive cooling setups.
Pin Fin Extrusions
Pin fin extrusions have an array of cylindrical or tapered pins to maximize surface area for heat transfer. These are good for forced-air cooling applications where fans or blowers blow air over the pins. They are used in high-performance systems that need rapid heat dissipation in small spaces.
Slant Fin Extrusions
Slant fin extrusions have angled fins to direct airflow and reduce resistance. This is good for equipment installed in tight spaces where you need to maximize cooling without compromising airflow. Slant fins ensure consistent thermal performance in confined areas.
Applications
Aluminum heat sink extrusions are the unsung heroes of thermal management. They keep things running smoothly across a wide range of industries. Here’s where you see them in action:
LED Lighting Systems
High-power LED chips can get pretty hot when they’re in operation. That heat can cut their efficiency and lifespan. Aluminum heat sinks draw that heat away from the chips, so you get consistent light output and a longer lifespan for the fixtures themselves. That’s good news for homes, offices, and industrial environments.
Power Electronics
Inverters, IGBTs, and rectifiers are all devices that generate a lot of heat when they’re handling high electrical loads. Aluminum heat sinks help prevent overheating by spreading that heat out efficiently. That means stable performance in applications like renewable energy systems and industrial machinery.
Telecommunication Devices
Routers, servers, and base stations need to stay cool to operate reliably. Aluminum heat sinks help stabilize these devices by managing heat buildup. That reduces the risk of thermal disruptions that could interrupt data transmission or system uptime.
Automotive Systems
In electric vehicles, aluminum heat sinks manage heat in critical components like battery packs and electronic control units. That means they can be lighter, more energy-efficient, and safer to operate under varying conditions.
Customization Options
We specialize in providing tailored solutions for unique thermal management needs:
Custom Shapes & Sizes: From compact designs to large-scale profiles.
Surface Finishes:
Anodizing for corrosion resistance
Powder coating for durability
Polished finishes for aesthetics
Thermal Optimization: Adjusting fin density, height, and spacing for maximum performance.
Our team works closely with you to design heat sinks that meet your exact specifications.
Technical Specifications
Here are some common specifications for our aluminum heat sink extrusions:
Attribute
Value Range
Material
Aluminum alloys (6061/6063)
Thickness
0.4mm – 20mm
Surface Finish
Anodized, polished, powder-coated
Applications
LED lighting, power modules
For detailed specifications or custom requirements, contact our team today.
FAQs
What industries use aluminum heat sinks?
Aluminum heat sinks are used in electronics, automotive systems, aerospace, lighting, and industrial machinery. They help manage heat in devices and equipment across these sectors.
How do I choose the right design for my application?
To select the right design, consider your thermal load, airflow, and available space. If you’re unsure, our engineers can assist in identifying or creating a design that fits your needs.
What are the maintenance requirements?
Aluminum heat sinks need minimal upkeep. Cleaning them regularly prevents dust buildup and maintains proper airflow for efficient performance.
