## Opening 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
Custom Die Cast Aluminum Heatsink | Precision Manufacturing No MOQ
## Opening 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
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
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.
Tolerance: ±0.05 mm on critical mounting surfaces
Lead time: 15–20 days for standard tooling, 7 days for CNC-only prototypes
No MOQ: order 1 piece or 100,000 pieces
Surface finish: as-cast, powder coat, anodize, or chem-film
Specifications
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
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Every heatsink gets a unique batch number. We record melt chemistry, die temperature, cycle time, and CNC program version. If a problem appears in your field, we trace it to the exact pour and cut.
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.
Where these parts are used
Our custom heat sinks go into power electronics, LED lighting, automotive ECUs, and industrial motor drives.
IGBT and MOSFET cooling modules for inverters
High-power LED arrays for streetlights and stadium lighting
Electric vehicle battery cooling plates and charger modules
Server CPU and GPU heatsinks with heat pipe assembly
Laser diode mounts requiring flatness under 0.03 mm
Telecommunications base station power amplifiers
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.
Questions buyers ask before ordering
Q: What is your MOQ?
A: No MOQ. We accept one-piece orders for prototypes and small runs. Tooling cost is quoted separately, but it is yours to keep. For production, we recommend batches of 500+ to amortize setup time.
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.
Send your drawing
Email your 2D or 3D file to sc@bquq.com. Include your target quantity, required surface finish, and any thermal performance specs.
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.
