L-Shaped 90° Dual-Side High-Density Extruded Aluminum Heat Sink
Right-angle L type aluminum extrusion heat sink with dense fins on two vertical sides, designed for wall-mounted and corner cabinet equipment. Custom cutting, CNC machining and black anodizing available. Request your quote now.
- Product Introduction
This L-shaped 90-degree dual-side fin aluminum heat sink is an integrated extrusion cooling solution specially designed for cabinet corners and wall-mounted equipment installation. Made of one-piece 6063-T5 aluminum alloy, it features dense vertical fins on both perpendicular sides, enabling bidirectional heat dissipation while acting as a structural support bracket for equipment inner corners.
The unique right-angle profile maximizes unused corner space inside enclosures, and raw long extrusion bars support custom cut-to-length production, together with full CNC machining and multiple anodizing finishing options for industrial power and audio devices.
Product Specification
| Parameter | Technical Details |
| Material | 6063-T5 Aluminum Alloy |
| Thermal Conductivity | 205–210 W/m·K |
| Profile Structure | 90° L-shaped solid base + high-density parallel fins on two vertical sides |
| Custom Length | Arbitrary cutting range: 50mm–3000mm |
| Surface Treatments | Mill finish, clear silver / black hard anodizing, sandblasting |
| Custom Machining | CNC drilling, tapping, deburring, wiring slot milling, step milling |
| Dimensional Tolerance | ±0.1mm for cut lengths; ±0.2mm for fin and base outline |
Product Features
1. 90° Right-Angle Design Makes Full Use of Cabinet Corner Space
Ordinary straight heat sinks cannot fit equipment inner corners, while this L-shaped radiator perfectly matches right-angle mounting positions, fully utilizing idle corner space to minimize overall equipment size.
2. Dual Perpendicular Cooling Surfaces for Two-Way Heat Dissipation
Both vertical sides are equipped with dense cooling fins, allowing simultaneous cooling of two sets of power PCBs and heat-generating components arranged perpendicularly. Only one heat sink is needed to handle two heat sources, simplifying your thermal design.
3. Integrated Profile Combines Heat Dissipation & Structural Support
The thick solid L-shaped base provides strong structural rigidity. It can serve as an internal corner support bracket without extra metal fixings, reducing total part count and assembly labor costs.
4. Uniform Tall Dense Fins Deliver Excellent Cooling Capacity
Evenly spaced tall parallel fins greatly expand total heat exchange area. Independent airflow channels form on both vertical sides, achieving stable cooling performance under fanless natural convection and higher efficiency with cooling fans.
5. Fully Customizable Secondary Processing
Long raw extrusion blanks can be cut to your required length, and our CNC workshop processes mounting holes, threaded inserts and wiring cutouts strictly according to your corner PCB and cabinet drawings. Multiple anodizing finishes are available to enhance anti-corrosion performance and appearance.
FAQ
FAQ1: What makes this L-shaped heat sink different from ordinary straight heat sinks?
It adopts an integrated 90° right-angle structure with cooling fins on two perpendicular sides, which can fit cabinet inner corners and wall-mounted angle positions that straight radiators cannot use. It supports bidirectional heat dissipation for two vertical heat sources and also acts as a built-in support bracket to save extra fixing parts.
FAQ2: Can this L-type heat sink cool two groups of power components at the same time?
Yes. Both vertical surfaces are covered with high-density cooling fins. You can attach two sets of perpendicularly arranged PCBs, IGBT modules or LED drivers on each side respectively, realizing synchronous heat dissipation for two independent heat sources with only one heat sink.
FAQ3: What processing customization can you offer for this corner heat sink?
We can cut the long raw extrusion bar into any length you need. Secondary CNC services include drilling, tapping, counterboring, wiring slot milling and positioning step machining. Multiple surface finishes such as silver mill finish, black hard anodizing and sandblasting are optional.
FAQ4: Is this L-shaped heat sink suitable for both fanless and fan cooling systems?
Absolutely. The evenly spaced tall fins create smooth airflow channels on both vertical sides. It provides stable passive cooling without fans for medium-power equipment, and achieves much higher heat dissipation efficiency when matched with industrial cooling fans for kilowatt-level power devices.
FAQ5: What kinds of equipment is this 90-degree corner heat sink mainly used for?
It is widely applied to wall-mounted and corner-installed devices: wall-hung inverters, servo drives, embedded switching power supplies, corner industrial controllers, wall-mounted audio amplifiers, outdoor wall washer LED power modules and communication signal amplifiers.
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