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Your drawing is the starting point. We turn it into a finished die cast aluminum heatsink, verified before shipment.We are BQUQ, a factory in Dongguan, China, with 20 years in precision m
Your drawing is the starting point. We turn it into a finished die cast aluminum heatsink, verified before shipment.
We are BQUQ, a factory in Dongguan, China, with 20 years in precision manufacturing. Our heatsink line handles complex fin geometries, tight flatness, and high-volume repeatability.
| Parameter | Value |
|---|---|
| Materials | ADC12, A380, A356, or your specified aluminum alloy |
| Process | Cold chamber die casting, CNC machining, deburring, vibratory finishing |
| Machine capacity | 160T to 800T die casting machines; 3-axis and 4-axis CNC mills |
| Tolerance | ±0.05 mm on machined surfaces; ±0.1 mm on as-cast dimensions |
| Surface finish | As-cast (Ra 3.2 µm), powder coat, hard anodize (up to 25 µm), nickel plating |
| Max part size | 600 mm × 400 mm × 150 mm |
| Fin thickness | 1.2 mm minimum (typical), 0.8 mm with special tooling |
| Batch size | 1 to 100,000+; no MOQ |
| Inspection | CMM report, material cert, dimensional report per batch |
| Lead time | Tooling: 15–20 days; samples: 5–7 days after tooling approval; production: 10–15 days |
2. Inspection report per batch. You receive a CMM dimensional report, material certificate, and surface finish check for every batch—not just samples. We measure fin pitch, base flatness, and mounting hole positions. No surprises at incoming QC.
3. One factory for CNC + stamping + spring + heatsink. Your assembly might need a stamped bracket, a spring clip, and a machined heatsink. We do all four lines in-house. One purchase order, one shipping date, one responsible party. You save freight and coordination time.
Our custom heat sinks go into power electronics, LED lighting, automotive ECUs, and industrial motor drives.
In each case, the die cast aluminum body provides structural rigidity and thermal mass. CNC machining adds precise mounting surfaces and threaded holes. We match the surface finish to your environment—anodize for corrosion, powder coat for insulation, chem-film for grounding.
Q: How do you control tolerance and quality? A: We use CMM inspection on every batch. Critical dimensions like base flatness and hole positions are checked at 100% for small batches, or per AQL sampling for large batches. We send the report with your shipment.
Q: What is the lead time? A: For an existing tool, 10–15 days for production. For new tooling, add 15–20 days. CNC-only prototypes without new tooling ship in 7 days. We confirm exact dates after reviewing your drawing.
Q: Can you provide material certificates? A: Yes. Every batch includes a mill certificate for the aluminum alloy, plus our in-house spectrograph analysis. We also provide RoHS and REACH declarations if required.
We reply with a firm quote in 12 hours—tooling cost, unit price, and lead time. No vague estimates.
Prefer instant contact? WhatsApp +86 13713157787. We are in Dongguan, China, and answer within one business hour (GMT+8).
Your drawing, our precision manufacturing. Custom heat sinks made in China, verified before shipment. No MOQ, no delays.
Looking for a different part? We also machine Custom Copper Skived Fin Heatsinks | Precision Manufacturing Made in China 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 |
