Custom aluminum heat sinks with radial cooling fins and machined mounting features

Custom Die Cast Aluminum Heat Sink

GLARY supplies custom die cast aluminum heat sinks and finned housings
to your drawings. We provide machined LED and power-module contact
faces, drilled and tapped mounting holes, and specified surface finishes.

  • Integrated fins, mounting bosses and brackets
  • Contact-face flatness and roughness to drawing
  • Thermal contact areas left uncoated as specified
  • Samples with machining and finishing completed

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  • Die casting tooling workshop with molds and equipment
  • Aluminum die casting workshop with production machinery
  • Drilling mounting holes in a finned aluminum die cast housing
  • atch of round aluminum die cast housings with cooling fins

Why Choose GLARY for Your Die Cast Aluminum Heat Sink?

  • 10 Die Casting Lines, 280–630T: For custom heat sinks and finned housings.
  • Custom Parts from 10 Pieces: Small batches for new equipment and trial assemblies.
  • Casting, Machining and Finishing: Contact-face milling, drilled and tapped holes, and powder coating supplied to your drawing.
  • Finished Samples for Approval:Check assembly fit and thermal performance before batch production.
  • Inspection to Agreed Drawing Requirements: Specified contact-face flatness, mounting-hole positions and critical dimensions checked before delivery.

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Die Cast Aluminum Heat Sink Features

Custom Fin Shapes and Spacing

Round, rectangular or irregular bodies with fin height and spacing matched to the available installation space.

Machined LED and Power-Module Contact Faces

Contact faces machined to specified flatness and surface roughness, with mounting holes matched to your LED board or power module.

Integrated Mounting Features, Fewer Separate Parts

Cooling fins, housing walls, bosses and brackets can be combined in one casting, reducing separate parts and fastening points. For designs that also require enclosed electronics, PCB mounting and cover interfaces, see our die cast aluminum enclosures.

Clearance for Cables and Fasteners

Cable openings and gaps between fin groups leave room for connectors, mounting screws and assembly tools.

Custom die cast aluminum heat sinks with radial cooling fins, mounting holes and machined contact face

Die Cast Aluminum Heat Sinks for LED and Power Electronics

LED Lighting

Custom die cast aluminum heat sinks for street lights, floodlights and high-bay lights. Supplied with machined LED board contact faces and fixing points for lenses or covers.

Power Supplies and LED Drivers

Finned housings that combine cooling surfaces with space for the power-supply or driver assembly. Supplied with device contact pads, board-mounting bosses and cable openings.

Inverters and Motor Drives

Die cast heatsink bodies with machined power-module seating faces and tapped fixing holes. Contact-face flatness, roughness and hole positions follow your module installation requirements.

Industrial Electronics

Custom heat sinks for controllers and power-control equipment with restricted installation space. Stepped bodies, mounting flanges and local fin clearances fit around adjoining components.

ADC12 Die Cast Aluminum Heat Sink Examples

GLARY supplies these ADC12 die cast aluminum heat sinks with machining, drilling, tapping and powder coating completed to the approved part drawings.

150 mm ADC12 die cast aluminum heat sink with parallel cooling fins and extended mounting section
120 mm ADC12 die cast aluminum heat sink with radial cooling fins, central ribs and mounting bosses
40 mm ADC12 die cast aluminum heat sink with radial fins, recessed center and mounting bosses
60 mm ADC12 die cast aluminum heat sink with radial fins, central reinforcing ribs and mounting opening

150 mm Die Cast Aluminum Heat Sink

This 150 mm ADC12 heat sink combines parallel cooling fins, a housing body and an extended mounting section.

120 mm Die Cast Aluminum Heat Sink

This 120 mm ADC12 heat sink combines closely spaced radial fins, central reinforcing ribs and mounting bosses.

40 mm Die Cast Aluminum Heat Sink

A compact 40 mm ADC12 heat sink with fins around a recessed center and internal mounting bosses.

60 mm Die Cast Aluminum Heat Sink

This 60 mm ADC12 heat sink has radial fins, central reinforcing ribs and an opening between the fin groups.

Need similar die cast aluminum heatsink? Send your drawing, quantity and finish requirements.

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Die Cast Aluminum Heat Sink Specifications and Supply Options

  • Material
  • Contact Faces
  • Fins & Clearance
  • Machining & Finish
  • Samples & Inspection

Die Cast Aluminum Heat Sink Materials

GLARY supplies die cast aluminum heat sinks in ADC12, A360 and A380. The alloy grade, material standard and any required material reports are confirmed with your quotation.

	ADC12 aluminum alloy blocks with handwritten material identification
ADC12 Aluminum Alloy
	Bundled A360 aluminum alloy ingots
A360 Aluminum Alloy
Stacked A380 aluminum alloy ingots for die casting
A380 Aluminum Alloy

Machined LED and Power-Module Contact Faces

Die cast heatsinks can include CNC-machined contact faces for LED boards and power modules. We machine mounting pads, holes and threads to your drawing, with specified flatness and surface roughness for the thermal interface.

Die cast aluminum heat sink with a circular mounting face, fixing holes and recessed slots
Die Cast Aluminum Mounting Face
	Custom die cast aluminum heat sink with cooling fins and a central mounting hole
Die Cast Heat Sink Mounting Boss
Interior of a die cast aluminum housing with mounting bosses, fixing holes and reinforcing ribs
Mounting Hole and Thread Details

Custom Fin Dimensions and Assembly Clearance

Fin height, thickness and spacing are made to the approved casting drawing. Custom fin layouts accommodate mounting holes, bosses and other assembly features, with clearance for fasteners, connectors and installation tools.

Die cast aluminum heatsink with parallel cooling fins, mounting bosses and clearance holes
Die Cast Heatsink Fin Spacing
Custom die cast heat sink with parallel fins and integrated mounting features
Custom Die Cast Heat Sink Fins
Round die cast aluminum heatsink with radial ribs, mounting holes and central assembly clearance
Die Cast Aluminum Heatsink Mounting Features

Die Cast Heat Sink Machining and Finishing

Our CNC machining includes contact-face milling, drilling, tapping, boring and slotting. Surface finishing options include powder coating and painting, with specified thermal contact faces, threads and fitting bores kept uncoated.

Drilling mounting holes in a die cast aluminum heat sink using a drill press
Die Cast Aluminum Heat Sink Drilling
Operator machining an aluminum die casting component on a workshop drilling machine
Die Cast Aluminum CNC Machining
Black-coated die cast aluminum mounting component with four fixing holes
Black-Coated Aluminum Die Casting

Finished Heat Sink Samples and Inspection

Samples include the agreed machining and finish for your assembly checks and thermal testing. Inspection covers specified contact-face flatness, mounting-hole positions and critical fin dimensions before batch supply.

Dial caliper checking a critical dimension on a black aluminum component
Die Cast Aluminum Dimensional Inspection
Assembly fit check of black die cast aluminum housings using a hand tool
Die Cast Aluminum Housing Assembly Check
Finished black die cast aluminum components arranged for assembly and batch inspection
Finished Die Cast Aluminum Components

Explore our die cast aluminum parts, or view other manufacturing options for aluminum heat sinks.

Get a Quote for Your Die Cast Aluminum Heatsink

Send your drawing, order quantity, alloy and finish requirements. GLARY will review tooling, machining and delivery details for your quotation.

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Frequently Asked Questions

Does every custom heat sink require a new mold?

A new mold is required if existing tooling cannot match your design. We check the overall shape, fin layout and mounting features before confirming the tooling requirement

Can you review a 2D drawing without a 3D model?

Send the dimensioned drawing for an initial review. We will identify any missing details and confirm whether a 3D model is needed before tooling can proceed.

Can you supply a matching cover for a die cast heatsink enclosure?

Yes. Send drawings for both the body and cover, including fixing points and mating dimensions. Any gasket groove or sealing requirement should also be specified.

Can you guarantee a cooling capacity in watts?

We do not assign a watt rating from the casting dimensions alone. Test the die cast aluminum heatsink with your heat source, thermal interface and airflow under the intended operating conditions.

What information is needed for a quotation?

Send your drawing or 3D model, quantity, alloy, machining requirements and finish. Mark critical tolerances and include any material-report or inspection requirements.

What is the MOQ for a custom die casting heatsink?

The MOQ is 10 pieces for custom parts. Tooling is quoted separately based on your drawing.

What is the lead time for custom die cast aluminum heat sinks?

New tooling takes approximately 30 days, followed by around 7 days for samples. The schedule is confirmed after reviewing the final drawing, machining and finishing requirements.