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We machine pin fin heat sinks exactly to your drawing. No redesign, no guesswork. You send the CAD file; we return a part that matches your tolerance and surface finish. Every batch is ve
We machine pin fin heat sinks exactly to your drawing. No redesign, no guesswork. You send the CAD file; we return a part that matches your tolerance and surface finish. Every batch is verified before shipment.
We are a precision manufacturing factory in Dongguan, China, with 20 years on CNC, stamping, springs, and heat sinks. Your drawing is the only thing we need to start.
| Parameter | Value | Notes |
|---|---|---|
| Materials | AL 6061-T6, AL 6063-T5, C1100 copper | Anodized or nickel-plated on request |
| Process | 3-axis / 4-axis CNC milling | Pin fin, straight fin, or skived |
| Tolerance | ±0.02 mm (fin pitch), ±0.05 mm (overall) | Verified with CMM on first article |
| Surface finish | Ra 0.8 µm on base, Ra 1.6 µm on fins | Optional: black anodize, chem film |
| Min fin thickness | 0.5 mm | Aspect ratio up to 10:1 |
| Max part size | 600 mm × 400 mm × 150 mm | Larger on request |
| Batch size | 1 – 100,000 pcs | No MOQ, tooling-free for CNC |
| Inspection | 100% dimension check on critical features | Report per batch, PDF or paper |
| Lead time | 7 days (proto), 15–20 days (production) | Air freight available |
All parts are deburred, cleaned, and individually packed. We keep your drawing and revision history on file for re-orders.
2. Inspection report per batch. You receive a dimensional report with every shipment. It lists measured values against your drawing callouts. For critical fins, we include CMM data points. You do not need to re-inspect on arrival — but you can, and it will match.
3. One factory for CNC + stamping + springs + heat sinks. Your assembly may need a stamped clip, a compression spring, and a machined heat sink. We make all three under one roof. Fewer vendors, fewer logistics headaches, one quality standard. That is what precision manufacturing means to us.
In each case, the pin fin geometry gives you more surface area per square centimeter than straight fins. That means lower thermal resistance for the same footprint. If your CFD model shows a hotspot, we can adjust fin density locally — no extra cost for a custom pattern.
Q: How do you control tolerance on thin fins? A: We use high-speed spindles (24,000 rpm) with balanced tool holders. Fin pitch is held to ±0.02 mm. Every first article is checked on a CMM, and we monitor tool wear every 50 parts. If a fin bends, you see it in the report, not in your assembly line.
Q: What is your standard lead time? A: Prototypes ship in 7–12 days after drawing approval. Production runs of 500+ pcs ship in 15–20 days. We quote firm dates with your order confirmation. If you need faster, we can split the batch and airfreight the first part.
Q: Do you provide material certificates? A: Yes. Every batch includes a mill certificate for the aluminum or copper. For RoHS or REACH compliance, we provide test reports from a third-party lab. We also keep 5-year records if your customer audits.
For urgent projects, message us on WhatsApp: +86 13713157787.
We are a custom heat sinks manufacturer made in China, and we ship worldwide. No MOQ, no minimum order value, no runaround. Send the drawing, get the part.
Looking for a different part? We also machine Custom IGBT Heatsink Black Anodized | Precision Manufacturing No MOQ in the same Dongguan factory.
| 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 |
