OpeningWe machine extruded aluminum heatsinks to your exact drawing. Not from a catalog. Not from a stock list. From your PDF, STEP, or DXF file.Every part is verified before shipment. You get a dimen
We machine extruded aluminum heatsinks to your exact drawing. Not from a catalog. Not from a stock list. From your PDF, STEP, or DXF file.
Every part is verified before shipment. You get a dimensional report, a material certificate, and a surface finish check. If it does not match your drawing, we do not ship it.
| Parameter | Value |
|---|---|
| Material | Aluminum 6063-T5, 6061-T6, 1050, 1100 |
| Billet size | Up to 300 mm width, 6000 mm length |
| Extrusion press | 800 MT, 1350 MT, 2500 MT |
| Fin thickness | 0.8 mm minimum |
| Fin height | 80 mm maximum |
| Tolerance (critical) | ±0.05 mm |
| Tolerance (general) | ±0.1 mm |
| Straightness | 0.5 mm per 1000 mm |
| Twist | 1° per 1000 mm |
| Surface finish | Ra 1.6 µm as-machined, Ra 0.8 µm optional |
| Anodizing | Clear, black, hard coat (up to 25 µm) |
| CNC post-processing | Drilling, tapping, milling, slotting, cutting to length |
| Inspection | CMM, optical comparator, profilometer |
| Batch size | 1 piece to 100,000 pieces |
| Lead time | 7–12 days prototype, 15–20 days production |
All heatsinks are extruded from virgin aluminum billets. We do not use recycled scrap. This keeps thermal conductivity consistent at 200–210 W/m·K for 6063-T5.
1. Batch-traceable quality Every batch gets a unique lot number. We record the billet heat number, extrusion date, and CNC program version. If a problem appears in your assembly line, we can trace it back to the exact hour of production. No guesswork. No "we will check."
This report is signed by our QC engineer. It is not a generic PDF. It is specific to your parts.
3. One factory for CNC + stamping + springs + heatsinks Your heatsink might need a stamped mounting clip, a compression spring for a socket, or a CNC-machined base plate. Most suppliers outsource these. We do not. Our factory has four production lines: CNC machining, metal stamping, springs, and heat sinks. You send us one drawing package. We coordinate all processes under one roof. Fewer suppliers, fewer delays, fewer quality gaps.
In each application, the heatsink is not a commodity. It is a thermal management component that determines system reliability. A 5°C reduction in junction temperature can double the lifespan of a power semiconductor. That is why we hold tight tolerances on fin spacing and base flatness.
Looking for a different part? We also machine Custom Round LED Bulb Heatsink | Precision CNC Machining, No MOQ in the same Dongguan factory.
Q: Do you really have no MOQ? A: Yes. We accept orders for 1 piece. Prototype buyers often order 2–5 pieces for testing. Production buyers order thousands. The price per piece drops with volume, but the setup cost is fixed. We do not force you to buy more than you need.
Q: How do you ensure tolerance and quality? A: We use a three-stage check. First, we inspect the extrusion die and first article. Second, we measure every 10th piece during production with a CMM. Third, we do a final 100% visual and dimensional check on critical features. You get the inspection report with the shipment.
Q: What is your lead time for custom heat sinks? A: Prototypes: 7–12 days after drawing approval. Production: 15–20 days. If you need faster, we can rush the die making for an additional fee. For repeat orders, we keep your extrusion dies in our tool room, so lead time drops to 10–15 days.
Q: Can you provide material certificates? A: Yes. Every shipment includes a mill certificate for the aluminum billet. We also provide anodizing thickness reports and hardness test results. If your customer requires a specific standard (ASTM B221, EN 755, or GB/T 5237), we can issue the certificate accordingly.
Send us your 2D or 3D drawing. We will review the geometry, check for manufacturability, and give you a firm quote within 12 hours. No hidden costs. No vague estimates.
Email: sc@bquq.com WhatsApp: +86 13713157787
We are a precision manufacturing factory in Dongguan, China, with 20 years of experience in CNC machining, metal stamping, springs, and heat sinks. Your custom heat sinks will be made in China, verified before shipment, and delivered on time. No MOQ. Send your drawing today.
| Parameter | Capability |
|---|---|
| Materials | AL6063/6061/5052, pure copper C1100, copper-aluminum composite |
| Process | Extrusion, CNC machining, skiving, forging, die casting, stamping fins |
| Fin Types | Extruded, pin fin, skived, folded, bonded, heat pipe, vapor chamber |
| Surface | Black anodizing, clear anodizing, nickel plating, powder coating |
| Size Range | Max 1500 x 400 x 300 mm |
| Thermal Test | Thermal resistance and heat dissipation data per batch |
| Prototype | 5-7 days, no MOQ on samples |
| Inspection | CMM, thermal resistance tester, full report per batch |
