Cold-Forged Aluminum Heatsinks and Components

Standard cold-forged heatsink and
custom aluminum forging with
CNC machining, anodizing,
assembly, and inspection.

Shanghai Glary manufactures custom forged aluminum components according to customer drawings and specifications. Our capabilities include round and square pin fin heat sinks, radial fin heat sinks, splayed pin fin heat sinks, and other forged components in different sizes and structures.

Cold-forged standard heat sinks are available in diameters from Ø50 to Ø210 mm, while custom heat sinks up to Ø400 mm can be evaluated according to fin structure, base thickness, material, and tooling requirements. High-purity aluminum can be used where thermal conductivity and integrated fin structures are required. CNC machining, anodizing, assembly, and inspection can be completed after forging to meet dimensional, surface, and installation requirements.

Different base shapes, fin arrangements, mounting surfaces, and machining features can be developed according to thermal, structural, and installation requirements.

Round cold-forged aluminum pin fin heat sink with black anodized finish
Round Pin Fin Heat Sinks
Integrated round base and pin array for multidirectional airflow and compact cooling structures.
Round cold-forged aluminum radial fin heat sink with black anodized finish
Radial Fin Heat Sinks
Radial straight fins arranged around a round base for outward airflow and high surface area.
CNC machined cold-forged aluminum heat sinks with mounting features
CNC Machined Forged Heat Sinks
Forged heat sinks with machined mounting surfaces, holes, slots, and assembly features.
Custom cold-forged aluminum structural component with integrated fins
Custom Forged Components
Custom base shapes, ribs, mounting sections, and structural features developed according to customer drawings.
Square cold-forged aluminum pin fin heat sink with black anodized finish
Square Pin Fin Heat Sinks
Square and rectangular bases with custom pin layouts for electronic modules and restricted installation spaces.
Round cold-forged aluminum splayed pin fin heat sink with black anodized finish
Splayed Pin Fin Heat Sinks
Outward-angled pins increase air exposure and support heat dissipation in multiple directions.
CapabilityAvailable Options
Base ShapeRound / Square / Custom
Round Heat Sink DiameterStandard: Ø50–210 mm / Custom: up to Ø400 mm after evaluation
Fin StructurePin Fin / Radial Fin / Splayed Pin
Secondary ProcessingCNC machining, drilling, tapping
Surface FinishingNatural or black anodizing
Production SupportPrototype and volume production

Integrated Base and Fins
The base and cooling fins are formed as one piece without soldered or bonded joints.

High-Density Fin Structures
Thin, closely arranged pins can be formed within a compact installation space.

Multidirectional Airflow
Pin fin and splayed fin structures allow airflow to pass through the heat sink from different directions.

Consistent Volume Production
Dedicated tooling supports consistent fin geometry and dimensions across repeat production batches.

Natural aluminum cold-forged pin fin heat sinks with machined mounting surfaces
Cold-forged pin fin heat sinks with machined mounting surfaces and holes.

Available Capabilities

  • 300-6,100 Ton Hydraulic Presses
  • Prototype Development
  • Production Tooling
  • CNC Machining
  • Surface Finishing
  • Assembly
  • Dimensional Inspection
High-purity aluminum billets prepared for cold forging
Aluminum Billets
High-purity aluminum billets prepared according to component size and material requirements.
Cold forging process forming an integrated aluminum fin structure
Cold Forging
Aluminum is formed under high pressure to create the integrated base and fin structure.
Black anodized cold-forged aluminum radial fin heat sink
Finished Component
CNC machining, anodizing, and inspection are completed according to the drawing.

We manage each project from drawing review and tooling development through cold forging, secondary processing, inspection, and packaging.

Drawing Review

Tooling Development

Material Preparation

Cold Forging

CNC Machining

Surface Finishing

Dimensional Inspection

Packaging

Cold-forged aluminum heat sinks before secondary machining
Cold Forged Components
Integrated fin structures are formed before final machining and surface finishing.
Cold-forged aluminum heat sinks with CNC machined mounting holes
CNC Machined Components
Mounting surfaces, holes, and assembly features are machined according to the drawing.
Finished forged aluminum heat sinks protected for packaging
Inspection and Packaging
Finished components are inspected and protected before shipment.

Forged components can be supplied as blanks or completed with CNC machining, surface finishing, marking, and assembly according to the drawing.

CNC machined cold-forged aluminum heat sink with mounting holes and assembly features
CNC Machining
Mounting surfaces, outer diameters, holes, threads, slots, and assembly features can be machined after forging.
Custom-color anodized cold-forged aluminum pin fin heat sink
Surface Finishing
Natural, black, and custom-color anodizing are available, together with RAL powder coating for applicable components.
Assembled black anodized cold-forged heat sink with reflector and mounting hardware
Assembly
Reflectors, mounting hardware, cables, inserts, and other components can be assembled according to the product specification.

Forged components are inspected during production and before shipment according to the drawing and approved sample.

Forged Structure

Fin formation, deformation, and visible surface defects are checked after forging.

Critical Dimensions

Base dimensions, base thickness, fin height, and overall dimensions are verified according to the drawing.

Machined Features

Mounting surfaces, hole positions, threads, and assembly features are inspected after CNC machining.

Final Inspection

Surface appearance, finish consistency, assembly, and packaging are checked before shipment.

Need a Forged Aluminum Component?

Send us your required diameter, drawing, or thermal requirements. We will confirm whether a standard heatsink can be used or whether custom tooling is needed.

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