OpeningYour drawing defines the part. We build it. Every copper embedded heat sink is machined to your exact geometry, verified with a CMM report before shipment. No surprises.We are BQUQ, a precision
Your drawing defines the part. We build it. Every copper embedded heat sink is machined to your exact geometry, verified with a CMM report before shipment. No surprises.
We are BQUQ, a precision manufacturing factory in Dongguan, China. 20 years on the floor. CNC, stamping, springs, and heat sinks under one roof. You send the file. We handle the rest.
| Parameter | Value |
|---|---|
| Base material | C1100 copper, C1020 oxygen-free copper (optional) |
| Fin material | AL6063-T5, AL6061-T6, or pure copper fins |
| Embedded interface | Copper block press-fit or soldered into aluminum base |
| Machining process | 4-axis / 5-axis CNC milling, CNC turning |
| Surface finish | As-machined 3.2 Ra, or anodized (black, clear) / nickel plating |
| Flatness | 0.05 mm over 100 mm length |
| Dimensional tolerance | ±0.02 mm (machined features), ±0.1 mm (overall envelope) |
| Thermal interface | Optional pre-applied phase-change TIM or graphite pad |
| Batch size | 1–50,000 pieces |
| Inspection | 100% critical dimension check, CMM report per batch |
| Lead time | Prototype: 7 days, Production: 15–20 days |
We use high-speed CNC centers with spindle speeds up to 20,000 RPM. This gives clean fin edges and tight pitch control — critical when your fin density exceeds 8 fins per inch. For copper embedded designs, we machine the pocket to a depth tolerance of ±0.02 mm, then press-fit or reflow-solder the copper slug. The result: zero air gaps, maximum heat transfer.
1. Batch-traceable quality. Every heat sink gets a unique batch number. Raw material lot, machine operator, tool wear logs, and inspection data are linked to that number. If a problem appears in your field, we trace it back to the exact pour and pass. No guesswork.
2. Inspection report per batch. You don't have to ask. Each shipment includes a dimensional report, material cert, and surface finish check. For critical aerospace or EV applications, we add full CMM data and X-ray inspection for solder voids. This is standard, not a paid extra.
3. One factory for CNC + stamping + springs + heat sinks. Your assembly might need a stamped mounting clip, a compression spring for retention, and a machined heat sink. We make all three. One purchase order, one quality system, one shipping date. Fewer vendors, fewer delays, lower logistics cost.
Copper embedded heat sinks solve one problem: spreading heat from a small, high-flux source into a larger finned area. Typical applications include:
If your thermal simulation shows a hotspot, we can machine a copper insert exactly where you need it. No need to redesign the whole fin stack.
Looking for a different part? We also machine Custom Round Radial Aluminum Heatsinks | Precision Manufacturing Made in China in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We run one prototype or 50,000 pieces on the same machines. Prototype pricing is higher per piece, but tooling is free for standard shapes. For complex copper embedded designs, we may charge a small fixture fee — credited back on the first production order.
Q: How do you guarantee tolerance and quality? A: We machine to ±0.02 mm on critical features. After machining, we measure with a CMM and provide a full report. For solder joints, we use X-ray inspection to check void ratio — typically under 5%. If anything is out of spec, we rework or remake at no cost.
Q: What is your lead time? A: Prototypes ship in 7 days after drawing approval. Production runs of 1,000+ pieces ship in 15–20 days. For urgent needs, we can split the batch — ship half early, the rest within the standard window.
Q: Do you provide material certificates? A: Yes. Every batch includes mill certificates for copper and aluminum. We also provide RoHS and REACH compliance documents on request. For aerospace or medical, we can add full traceability with heat numbers and mechanical test reports.
Stop comparing quotes from middlemen. Talk to the factory that machines your parts. Send your 2D or 3D file — STEP, IGES, or PDF — and get a firm quote within 12 hours. We include material cost, machining time, surface finish options, and shipping terms. No vague estimates.
Email: sc@bquq.com WhatsApp: +86 13713157787
Your copper embedded heat sink, made in China, machined to your numbers, verified before it ships. That's the BQUQ standard. Send the drawing.
| 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 |
