Electronic Profile Heat Sink CNC Machining
Electronic Profile Heat Sink CNC Machining
Profile heat sinks machined for electronic equipment, including PCB mounting features, component clearances and thermal interfaces designed around your circuit layout.









Product Overview
Cooling Built Around Your Circuit Design
Electronic heat sinks are mechanical parts that must fit a PCB layout, a component height profile and an enclosure opening at the same time. We machine to your assembly drawing so the heat sink drops in without rework, and we can accommodate component cut-outs and standoffs in the same operation.
Zhigao is a manufacturer of electronic profile heat sink cnc machining serving customers in Europe, North America and Asia. Every order is produced to your drawing and inspected against your specification before shipment, with full documentation supplied.
Specifications
| Material | Aluminium 6063-T5, 6061-T6 and 6005A extrusion profiles |
| Application | Electronic equipment cooling, PCB heat spreading, power module and communication equipment |
| Process | Extrusion, precision cutting, CNC milling, drilling, tapping, slotting and surface treatment |
| Tolerance | +/-0.05mm on length; +/-0.02mm on machined features |
| Surface Finish | Natural anodizing, black anodizing, sand blasting, brushing and polishing |
| Mounting Features | PCB standoffs, screw bosses, component cut-outs and thermal pad recesses |
| Typical Length | 10mm to 1200mm, cut to your specified length |
| Insulation Option | Anodized layer provides electrical insulation between heat sink and live components |
| Drawing Format | 2D PDF / DWG / DXF; 3D STEP / STP / IGS |
| Quality Control | Material certificate, dimensional inspection and 100% pre-shipment inspection |
| Packing | Protective film, EPE foam and export cartons or plywood cases |
| Certification | ISO 9001 quality management system; RoHS compliant materials |
Specifications are typical values for this process family. Final values are confirmed against your drawing during the engineering review.
Manufacturing Capability
In-house Machining
3-axis, 4-axis and 5-axis CNC machining centres with dedicated tooling and fixtures.
Controlled Tolerances
Dimensional accuracy verified at first article, in process and before shipment.
Surface Finishing
Anodizing, brushing, polishing, powder coating, laser engraving and silkscreen printing.
Prototype to Volume
From a single sample part through to mass production runs with consistent quality.
Quality Control
Order Process
- Send Your DrawingShare 2D drawings or 3D models along with material, finish and quantity requirements.
- Engineering ReviewOur engineers review manufacturability and recommend the most cost effective process route.
- QuotationA detailed quotation covering unit price, tooling, lead time and packing is issued.
- SamplingSample parts are produced and submitted for your dimensional and appearance approval.
- Mass ProductionProduction begins after sample approval with in-process quality control at every stage.
- QC and ShippingFinal inspection, protective packing and shipment with full documentation.
Frequently Asked Questions
Can the heat sink be electrically insulated from the PCB?
Can you machine mounting holes for specific components?
What tolerance do you hold on machined features?
Do you supply thermal interface material?
What is the minimum order quantity?
How is the product packed?
Request a Quotation
Send us your drawing, material and quantity requirements. Our engineering team will respond with a detailed quotation and lead time.
Send Your EnquiryEach 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.
