Made for your next design.
Custom Round Radial Fin Heat Sink
Custom Round Radial Fin Heat Sink
Radial fin heat sink with fins radiating from a central hub, suited to round luminaires and applications with omnidirectional airflow.
Product Overview
A radial fin arrangement is not simply a round version of a linear heat sink. Because the fins radiate outward from the centre, airflow can approach from any direction — which suits round fixtures where orientation is not controlled and natural convection is the dominant cooling mechanism.
Typical applications
- LED downlights
- High-bay luminaires
- Spotlights
- Round industrial fixtures
Specifications
| Material | Aluminium 6063-T5 / ADC12 (cast version) |
| Process | Extrusion or die casting + CNC machining |
| Outer Diameter | 30 - 250 mm |
| Fin Thickness | 1.0 - 3.0 mm |
| Fin Height | 10 - 70 mm |
| Fin Count | Custom, typically 12 - 60 |
| Hub Bore | Machined to drawing; H7 available |
| Mounting | Tapped holes on hub or base face |
| Surface Finish | Clear anodizing / black anodizing / sandblasting |
| Quality System | ISO 9001 |
| MOQ | 300 pieces |
| Sample Lead Time | 5 - 7 days |
| Production Lead Time | 45 - 60 days |
| Origin | Dongguan, Guangdong, China |
Specifications are indicative and are finalised against your drawing or sample. Where a requirement falls outside the ranges shown, contact us to confirm feasibility before design freeze.
Manufacturing Capability
In-house process chain
Extrusion, die casting, CNC machining, stamping, anodizing, powder coating and laser marking are performed in our own 12,000 m² facility. Fewer handovers means fewer places for schedule and quality to slip.
Tooling under our control
Extrusion dies, die casting moulds and stamping dies are designed and manufactured in our own tool room, which shortens tooling lead time and allows manufacturability issues to be raised before the tool is cut.
Quality system
ISO 9001, ISO 14001 and IATF 16949 certified. Materials are traceable to heat number, gauges are calibrated on a defined cycle, and dimensional reports are available on request.
Built for OEM programs
We manufacture to your drawings and samples. We are not a design house, which means our focus stays on producing your part accurately, repeatedly and at a competitive cost.
Quality Control
How to Order
- Send your requirementDrawing or 3D model, material, quantity and any critical or cosmetic requirements.
- Quotation and DFM feedbackWe quote with a stated validity period and flag any manufacturability or tolerance concerns before you commit.
- SamplingSamples are produced through the normal production process, typically within 3 to 7 days, with dimensional data where required.
- Approval and toolingOn sample approval we finalise tooling. Tooling is designed and manufactured in-house.
- Bulk productionProduction typically runs 45 to 60 days, with progress reported through the run.
- Inspection and shipmentFinal inspection, packing for export, documentation issued and shipment arranged by sea, air or express.
Frequently Asked Questions
Do you design and build your own extrusion dies?
Do you manufacture to our drawings?
Can you sign an NDA before we share drawings?
How do I get a quotation?
What are your sample and production lead times?
What payment and shipping terms do you support?
Request a quotation for Custom Round Radial Fin Heat Sink
Send your drawing, material specification and target quantity. We will respond with pricing, a realistic lead time and any manufacturability notes you should know before committing.
Email [email protected]Dongguan Zhigao Industrial Co., Ltd. · Dalang Town, Dongguan, Guangdong, China · +86 134 3115 9972 · https://www.zhigaothermal.com
Each component is quoted against the agreed drawing, material, finish and quantity. Samples and production schedules are confirmed for your project. Air, sea and express shipping can be arranged; contact our team to confirm packing, destination and trade terms.
