OpeningYour drawing. Our machines. A heat sink that fits the first time.We are BQUQ, a precision manufacturing factory in Dongguan, China. We have run CNC machining, metal stamping, spring, and heat s
Your drawing. Our machines. A heat sink that fits the first time.
We are BQUQ, a precision manufacturing factory in Dongguan, China. We have run CNC machining, metal stamping, spring, and heat sink lines for 20 years. Every custom heat sink we ship is verified against your drawing before it leaves the floor. No guesswork. No surprises.
We build heat sinks the way your thermal engineer drew them. Not a generic extrusion with holes drilled in the wrong place.
| Parameter | Value |
|---|---|
| Materials | Aluminum 6061-T6, 6063-T5, 5052; Copper C1100, C1020; Aluminum-copper hybrid assemblies |
| Base thickness | 2.0 mm – 25.0 mm |
| Fin height | Up to 150 mm (CNC), up to 80 mm (stamped) |
| Fin thickness | 0.8 mm minimum (CNC), 0.3 mm minimum (stamped) |
| Surface finish | Bare aluminum, clear anodize (up to 25 µm), black anodize, nickel plating, chromate conversion |
| Tolerance | ±0.05 mm on fin pitch and critical mounting surfaces |
| Flatness | 0.1 mm over 100 mm length on mating surfaces |
| Processes | 3-axis and 5-axis CNC milling, CNC turning, metal stamping, skiving, bonding, tapping, thread forming |
| Batch size | 1 piece to 100,000+ pieces |
| Inspection | CMM (coordinate measuring machine) report, surface roughness check, dimensional report per batch |
| Lead time | 7 days for CNC sample, 15 days for stamped production |
All material certs are mill-issued. We keep a sample from every batch for 12 months. If you need to trace a problem, we can pull the actual metal.
1. Batch-traceable quality. Every heat sink gets a batch number. That number ties to the material cert, the machine operator, the inspection report, and the CMM data. If your customer rejects a part, we can tell you exactly which melt of aluminum it came from. That is rare for a made-in-China supplier. We do it on every order.
2. Inspection report per batch. You do not have to trust us. We send you the numbers. Dimensional checks, flatness readings, surface finish, and thread gauge results. For critical parts, we include photos of the CMM probe points. You can verify against your drawing before we even ship.
3. One factory for CNC + stamping + springs + heat sinks. Your power supply assembly probably needs more than just a heat sink. It needs a stamped bracket, a spring clip for the MOSFET, maybe a CNC-machined base plate. We do all of it under one roof. One purchase order. One quality system. No juggling three suppliers across time zones.
Custom heat sinks from BQUQ go into equipment that runs hot and runs long.
If your part moves heat from a semiconductor to air or liquid, we can make it.
Looking for a different part? We also machine Precision Machined Pin Fin Heat Sinks | Custom CNC Heatsinks Made in China in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We run one prototype for $150 plus shipping. Production runs start at any quantity. We quote the same unit price for 50 pieces as for 5,000 pieces, with only a small setup fee for small batches.
Q: How do you guarantee tolerance and quality? A: We inspect every critical dimension on a CMM. For stamped parts, we check the first article and then every 50th piece during the run. You get the inspection report with the shipment. If a part is out of spec, we remake it at our cost. No arguments.
Q: What is your lead time? A: CNC prototype: 7 days. Stamped sample: 10 days. Production: 15–20 days depending on quantity and surface treatment. Anodizing adds 3–4 days. We ship via DHL, FedEx, or air freight from Shenzhen. Door-to-door in 3–5 days to the US or Europe.
Q: Do you provide material certificates? A: Yes. Every batch ships with a mill certificate for the aluminum or copper. We also provide RoHS and REACH declarations on request. For medical or automotive work, we can provide full PPAP documentation.
Stop guessing. Get a firm quote in 12 hours.
Email your 2D or 3D file to sc@bquq.com. Include the material, quantity, and surface finish if you know them. If you do not know, we will recommend based on your thermal load.
Our engineers will review the drawing for manufacturability. We will flag any tight tolerances or thin fins that will drive up cost. Then we send you a fixed quote with a lead time.
No MOQ. No hidden tooling fees. No runaround.
Email: sc@bquq.com WhatsApp: +86 13713157787
We are in Dongguan, China. We answer within one business day. Your custom heat sinks, made in China, verified before shipment.
| 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 |
