Product Overview

An Extruded Heat Sink Aluminum Profile is an aluminum extrusion used to dissipate heat from electronic devices and power components.

Technical Specifications

Category	Parameter	Typical Value / Specification	Tolerance / Standard
Material	Alloy Grade	Aluminium 6063 / 6061	ASTM B221 / EN 755
	Temper	T5 / T6	EN 515
	Thermal Conductivity	160–209 W/(m·K)	Typical Value
	Density	2.70 g/cm³	±0.05 g/cm³
Dimensions	Width (W)	Custom Size Available	±0.30–0.80 mm
	Height (H)	Custom Size Available	±0.25–0.50 mm
	Length (L)	Cut-to-Length Service	±0.50 mm
	Base Thickness	4.0–8.0 mm	±0.20 mm
	Fin Thickness	1.2–1.5 mm	±0.15 mm
	Fin Spacing	Approx. 3.5 mm	±0.20 mm
Thermal Performance	Thermal Resistance	0.5–2.5 °C/W	Depending on Design
Thermal Performance	Power Dissipation Capacity	50–300 W	Application Dependent
Machining Capability	CNC Machining	Milling, Drilling, Tapping	Available Upon Request
	Base Flatness	≤0.15 mm / 100 mm	CNC Machining Available
	Surface Roughness	Ra 0.8–3.2 μm	Process Dependent
Surface Finish	Finish Options	Clear or Black Anodized	ISO 7599
	Anodizing Thickness	10–15 μm	Minimum 8 μm
	Salt Spray Resistance	48–96 Hours	ISO 9227
Quality & Compliance	Dimensional Inspection	100% Critical Dimensions Checked	Internal QC Standard
	Material Certification	Mill Test Certificate Available	Upon Request
	Compliance Standard	ASTM B221 / EN 755	Production Standard

Multi-Axis Milling: Pocket milling, counterboring, and custom machining for multi-fin profiles.

Automated Multi-Hole Tapping: Automated multi-hole tapping for mounting features down to M2 size.

Fly-Cutting Base Refinement: Fly-cut machining achieving base flatness down to 0.05 mm.

Controlled Burr Deflashing: Deburring processes for removing burrs between narrow fins.

Close-Tolerance Length Cleaving: Precision saw cutting for consistent cut-to-length dimensions.

Electrolytic Color Anodizing: Clear, black, and custom anodized finishes for improved wear resistance.

Hard Anodizing: Hard anodized coatings up to 50 microns for demanding applications.

Conductive Chromate Film: Chemical conversion coating for conductivity and corrosion protection.

Electrostatic Powder Coating: Powder-coated finish for additional surface protection.

Flatness Testing: Verifying base flatness down to 0.05 mm.

Coating Thickness Measurement: Measuring anodized coating thickness using digital gauges.

Optical Profile Scanning: Using profile projectors to inspect fin dimensions and profile accuracy.

Hardness Testing: Conducting regular Webster hardness tests to verify metallurgical mechanical property compliance.

Salt Spray Testing: Conducting salt fog exposure to evaluate corrosion resistance reliability.

Compliance & Certifications

Certification / Standard	Verification Profile
SGS Material Traceability	Verifies raw material chemistry and origins.
ISO 9001	Certifies consistent factory quality workflows.
ISO 14001	Confirms compliant environmental and emissions management.
RoHS	Guarantees compliance with hazardous heavy metal limits.
REACH	Confirms absence of banned EU chemicals.

Custom Interleaved Foam Slots: Profiles packed in foam slots to reduce fin damage during transport.

Moisture-Proof Silica Desiccant: Desiccant packs included to reduce moisture exposure during shipping.

Corrugated Wooden Crating: Reinforced wooden crates used for bulk shipments.

ISPM-15 Export Stamping: ISPM-15 compliant wooden pallets available for export shipments.

Barcoded Batch Labeling: Barcoded labels applied for product identification and tracking.

Q: What is the typical lead time for a first-article sample after die approval?

A: Initial samples usually ship within 3 to 5 days after completing the extrusion tooling setup.

Q: Can you manufacture custom heat sink profiles based on drawings?

A: Yes, we manufacture according to drawings and required specifications.

Q: Can additional CNC machining be included after extrusion?

A: Yes, CNC machining is available after extrusion as required.

Q: Can you provide raw material mill test certificates with mechanical test values?

A: Every shipment includes official mill test reports showing exact tensile strength, yield strength, and elongation data.