Extruded Aluminum LED Floodlight Enclosure

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Product Introduction

Extruded aluminum LED floodlight enclosures provide a structural housing and thermal interface for high-power LED assemblies. The custom profile can be engineered around your LED module, mounting requirements, cooling structure, optical lens, and cable interfaces.
For OEM and bulk projects, enclosures are supplied either as raw extruded profiles or as fully finished components through precision CNC cutting, drilling, tapping, milling, and slotting. Production is based on 2D engineering drawings, 3D CAD models, physical samples, or custom dimensional specifications.

Technical Specifications at a Glance

Parameter	Standard Specification & Options
Product Type	Extruded aluminum LED floodlight enclosure
Material / Alloy	Aluminum alloy 6063-T5, 6063-T6, 6061-T6, or custom specified alloy
Manufacturing Process	Aluminum extrusion + secondary CNC machining + surface treatment
CNC Machining Capability	Precision cutting (tolerance +/-0.1mm to +/-0.2mm), milling, drilling, tapping, slotting
Surface Treatment	Anodizing (Clear, Black, Hard Coat), Powder Coating (RAL color matching)
Design Input	2D drawings (PDF/DWG/DXF), 3D CAD models (STEP/IGES), or physical samples
Quality Compliance	ISO 9001:2015 quality management system, 100% critical interface inspection
Production Stages	Tooling design, prototype/FAI, pilot batch, volume production
Applications	Outdoor floodlights, industrial high-bays, sports lighting, security and commercial lighting

Extrusion Profile and Thermal Engineering

The extrusion profile forms both the structural skeleton and the heat dissipation path for the fixture. Custom geometry integrates LED mounting surfaces, cooling fins, internal grooves, cable openings, and lens interfaces into a single extruded section.
Key design considerations for optimal thermal and mechanical performance include:
• Aluminum alloy selection for thermal conductivity and wall rigidity
• Optimized cooling fin height, thickness, and fin-to-gap ratio
• Flatness tolerances on the LED mounting surface to eliminate thermal hot spots
• Integrated mounting tracks, thread locations, and gasket sealing channels

Manufacturing Process and CNC Machining

Custom extrusion profiles eliminate the need to adapt standard off-the-shelf housings to proprietary LED designs.

01/

Engineering Review: DFM (Design for Manufacturability) analysis on 2D/3D files.

02/

Tooling & Extrusion: Die fabrication, billet heating, and profile pressing.

03/

Secondary CNC Machining: Precision cutting to length, drilling, thread tapping, slotting, and countersinking.

04/

Surface Finishing: Deburring, surface cleaning, architectural powder coating, or anodizing.

05/

Quality Verification: Dimensional CMM inspection, thread checking, and packaging.

Surface Finishing for Exterior Lighting

Surface treatments are selected based on environmental exposure, aesthetic needs, and thermal requirements:

Anodized Aluminum: Excellent corrosion resistance and UV stability. Ideal for marine environments and industrial outdoor use.

Powder Coated Aluminum: High weatherability with architectural RAL color options. Ideal for commercial exterior lighting fixtures.

Quality Control and Supplier Evaluation

Material Composition:

Chemical analysis to verify alloy and temper before pressing.

Dimensional Inspection:

Micrometer, gauge, and CMM checks against engineering tolerances.

Surface Flatness Verification:

Laser/plate testing on thermal contact surfaces to meet +/-0.05mm flatness specs.

Coating Adhesion:

Cross-hatch and film thickness testing on finished surfaces.

Assembly Validation:

Interface testing using customer-supplied PCB, lens, or bracket samples.

What to Provide for an RFQ

To receive a fast and accurate quotation, please provide the following details:

2D Drawings & 3D CAD Files: PDF/DWG format for tolerances; STEP/IGES format for 3D geometry.

Material Specifications: Preferred alloy and temper (e.g., 6063-T5).

Machining Requirements: Tapping size, hole patterns, and surface flatness tolerances.

Surface Treatment: Coating type, thickness, and color code (e.g., RAL 9005 Powder Coat).

Quantity: Prototype requirements, first production batch, and estimated annual volume (EAV).

FAQ

Q: Which aluminum alloy is recommended for LED floodlight housings?

A: Aluminum 6063-T5 or 6063-T6 is the standard choice. It offers an optimal balance of high thermal conductivity (approx. 200 W/m.K), excellent extrusion capability for complex cooling fins, and high surface finish quality for anodizing or powder coating.

Q: What is the typical lead time for custom extrusion tooling and sample production?

A: Extrusion die fabrication typically takes 10 to 15 calendar days. Once the die is ready, extruded and CNC-machined samples are usually completed within 5 to 7 business days for initial approval.

Q: How do you guarantee flat contact surfaces for LED board heat transfer?

A: Critical thermal mounting surfaces undergo precision CNC face-milling operations to achieve strict flatness tolerances (typically within 0.05mm to 0.1mm), preventing air gaps between the PCB and housing.

Q: Can you handle low-volume prototype orders before mass production?

A: Yes. We support full product development stages, starting from prototype samples and First Article Inspection (FAI) through pilot runs to full-scale volume production.

Q: What is the minimum order quantity (MOQ) for custom profile extrusions?

A: The standard MOQ depends on profile cross-section weight, typically starting at 500 kg to 1,000 kg per extrusion run. Smaller quantities can be evaluated during the prototyping stage.

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