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Our extrusion heat sink enclosure is integrally extruded from high thermal conductivity 6063-T5 aluminum alloy via custom extrusion molds, featuring dense serrated cooling fins to maximize heat dissipation area. The base profile undergoes straightening, fixed-length sawing, deburring and degreasing before matte grey anodization and sealing treatment. We provide full OEM custom service, with secondary CNC machining including slotting, drilling, milling and tapping available to match your exact circuit and assembly requirements. As a reliable custom aluminum heat sink manufacturer, we support drawings and samples customization, controlling tight dimensional tolerances for industrial power supply, driver and electronic equipment cooling hardware. All grey anodized aluminum heat sink surfaces deliver anti-corrosion, scratch-resistant matte texture without glare, stable for long-term indoor and commercial equipment operation.
Stable extrusion mass production solves long lead time and unstable supply of small custom heat sink batches
Tight controlled machining tolerance solves assembly gap and screw misalignment problems
Quality Control
Raw material inspection: Test 6063-T5 aluminum alloy composition before extrusion to guarantee thermal performance
In-line extrusion QC: Real-time dimensional check of extruded profiles to prevent bending and size deviation
Post-cutting inspection: Full deburring visual check and dimensional caliper measurement for every cut piece
Surface treatment test: Anodized film thickness, corrosion resistance and matte finish sampling test
CNC machining inspection: Coordinate measuring machine check for hole position, groove depth and thread tolerance
Finished product aging test: Thermal cycle test to verify heat sink long-term cooling stability
Final outgoing inspection: Full appearance and dimension screening before packing to avoid defective goods delivery
FAQ
Can you make custom size grey anodized aluminum heat sink based on my drawings?
Yes, we support full OEM custom service, our engineering team develops molds and CNC processes strictly following your technical drawings or physical samples.
What tolerance can your CNC machined aluminium heat sink reach?
Our extruded raw profile tolerance is ±0.1mm, secondary CNC machining precision can reach ±0.02mm for holes, grooves and mounting positions.
Is the matte grey anodized surface scratch and corrosion resistant?
Absolutely, we adopt full anodizing and sealing process, the surface has strong anti-corrosion and anti-scratch performance for long-term equipment use.
What is the minimum order quantity for custom 6063 t5 extruded heat sink?
We accept small trial orders for custom samples, and mass production MOQ can be negotiated based on your demand.
How long is the lead time for custom industrial power supply aluminum profile?
Sample lead time is 7–10 working days; mass production lead time ranges 12–18 working days depending on CNC processing complexity.
