OpeningYour drawing is the starting point. We machine the part exactly to that drawing, then verify every critical dimension before shipment. No surprises. No guesswork.Tolerance: ±0.05 mm on CNC-mach
Your drawing is the starting point. We machine the part exactly to that drawing, then verify every critical dimension before shipment. No surprises. No guesswork.
We are a precision manufacturing factory in Dongguan, China, with 20 years of experience across CNC machining, metal stamping, springs, and heat sinks. One factory, four processes, full control.
| Parameter | Value |
|---|---|
| Materials | Aluminum 6061-T6, 6063-T5, 5052, copper C1100 (for cold plates) |
| CNC machines | 3-axis, 4-axis, 5-axis (Fanuc, Mitsubishi controls) |
| Process | CNC milling, drilling, tapping, skiving, friction stir welding (for liquid-tight cold plates) |
| Tolerance | ±0.05 mm (CNC), ±0.1 mm (stamping), flatness 0.1 mm over 300 mm length |
| Surface finish | Anodizing (clear, black, hard coat), nickel plating, powder coating, bead blasting |
| Cold plate features | Internal channels 3–8 mm width, pressure tested to 1.0 MPa, helium leak tested to 1×10⁻⁸ Pa·m³/s |
| Batch size | 1–50,000 pieces |
| Lead time | Prototype: 10 days, production: 20–25 days after drawing approval |
| Quality control | CMM inspection, air gauge, pressure test, leak test, surface roughness tester |
All values are standard for custom heat sinks and liquid cooling plates. If your drawing requires tighter tolerances, we adjust the process and quote accordingly.
1. Batch-traceable quality. Every batch gets a unique job number. Material certificates, machine logs, and inspection records are tied to that number. If a problem appears in your assembly line six months later, we trace it back to the exact batch, the exact machine, and the exact operator. No finger-pointing. No vague answers.
2. Inspection report per batch. You do not have to trust our word. We send a full dimensional report with every shipment. Critical features are measured on a CMM and documented. For cold plates, we include pressure test and helium leak test results. You verify the numbers against your drawing. That is it.
3. One factory for CNC, stamping, springs, and heat sinks. Most suppliers outsource half their work. We do not. Your heat sink base is CNC-machined, your mounting clips are stamped, your compression springs are wound, and your cold plate is welded — all under one roof. Fewer vendors, shorter lead times, and one accountable partner. This is precision manufacturing the way it should work.
Custom heat sinks and aluminum cold plates from our factory go into equipment that runs hot and cannot afford to fail.
If your part moves heat from a source to a sink — air or liquid — we can machine it.
Looking for a different part? We also machine Custom Industrial Heat Sinks Precision Manufacturing No MOQ China in the same Dongguan factory.
Q: What is your MOQ? A: No MOQ. We machine one prototype for validation, then scale to your volume. Prototype pricing is slightly higher per piece, but production pricing drops with quantity.
Q: How do you guarantee tolerance and quality? A: We inspect 100% of critical dimensions on every batch. For cold plates, we pressure test and helium leak test each unit. The inspection report is included in the shipment. If a part is out of tolerance, we replace it at our cost.
Q: What is the lead time for a custom heat sink? A: Prototypes: 10–15 working days from drawing approval. Production: 20–25 working days. For urgent orders, we can expedite to 7 days for prototypes, subject to machine availability.
Q: Can you provide material certificates? A: Yes. We supply mill certificates for aluminum and copper, plus RoHS and REACH compliance documents. For aerospace or automotive applications, we provide full traceability documentation.
Email your 2D or 3D drawing to sc@bquq.com. We reply with a firm quote within 12 hours. For urgent inquiries, WhatsApp us at +86 13713157787.
Include your target quantity, required surface finish, and any test specifications. We handle the rest. Custom heat sinks, made in China, with no MOQ and full traceability. Send the drawing — we will make it right.
| 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 |
