OpeningYour drawing. Our machines. A verified part before it ships.We build custom heat sinks to your exact geometry—CNC machined, stamped, or assembled. Every batch is checked aga
Custom Heat Sinks Made in China | Precision CNC & Stamping
OpeningYour drawing. Our machines. A verified part before it ships.We build custom heat sinks to your exact geometry—CNC machined, stamped, or assembled. Every batch is checked against your tolerances
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your drawing. Our machines. A verified part before it ships.
We build custom heat sinks to your exact geometry—CNC machined, stamped, or assembled. Every batch is checked against your tolerances, and the inspection report travels with the shipment.
Tolerance: ±0.05 mm on CNC features
Lead time: 7–15 days for prototypes, 15–25 days for production runs
No MOQ—order one piece or ten thousand
Surface finish: plain, anodized (black or clear), or nickel-plated
Material: aluminum 6061, 6063, copper C1100, or your specified alloy
We are a precision manufacturing factory in Dongguan, China, with 20 years on CNC, stamping, springs, and heat sinks. You send the drawing. We do the rest.
Specifications
Parameter
Value
Notes
Materials
Al 6061, Al 6063, Cu C1100
Other alloys on request
CNC machining
3-axis, 4-axis, 5-axis
Max part size 800 × 600 × 300 mm
Stamping
Progressive die, 25–160 ton presses
For fin arrays, clips, mounting brackets
Tolerance
±0.05 mm (CNC), ±0.1 mm (stamped)
Tighter on critical features
Surface roughness
Ra 1.6 µm (machined), Ra 3.2 µm (stamped)
As-drawn or improved
Surface treatment
Clear anodize, black anodize, Ni plating, passivation
MIL-A-8625, ASTM B117 salt spray on request
Fin thickness
0.8 mm min (stamped), 1.5 mm min (CNC)
Thinner with special tooling
Thermal interface
Flatness 0.05 mm over 100 mm
Verified with CMM
Batch size
1–100,000 pcs
No MOQ, tooling amortized per order
Inspection
100% critical dimensions, AQL 2.5 for batch
Report included per batch
Every heat sink is deburred, cleaned, and checked for burrs on fin edges. We do not ship parts we would not mount on our own equipment.
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Each batch gets a unique job number. Material certs, process records, and inspection results are linked to that number. If a problem appears at your assembly line, we trace it to the exact heat treat lot and machine operator. No guesswork.
2. Inspection report per batch.
You receive a dimensional report with CMM data, surface finish readings, and flatness measurements. For thermoelectric cooler heatsinks, we also verify the mounting surface flatness—critical for thermal contact. You do not have to re-inspect everything on arrival.
3. One factory for CNC + stamping + springs + heatsink.
Your assembly may need a stamped clip, a spring for pressure mounting, and a machined base. We make all of them under one roof. Fewer suppliers, fewer tolerance mismatches, fewer shipping delays. You get one invoice, one quality standard, one responsible party.
Where these parts are used
Custom heat sinks from our shop cool real equipment:
Thermoelectric cooler (TEC) assemblies—for laser diodes, PCR cyclers, and medical diagnostic instruments. The heatsink pulls heat from the hot side of the TEC so the cold side stays cold.
Power electronics—IGBT modules, motor drives, and DC-DC converters in industrial cabinets. We machine baseplates with tapped holes and through-slots for direct mounting.
LED lighting—high-bay fixtures and automotive headlamps. Stamped aluminum fins with anodized finish for corrosion resistance and emissivity.
Telecom enclosures—5G remote radio units and edge servers. Our CNC heatsinks hold tight flatness for thermal pads and phase-change materials.
Test and measurement—benchtop power supplies and signal generators that need quiet, passive cooling without fans.
If your part dissipates heat, we can machine or stamp it.
Q: Do you really have no MOQ?
A: Yes. We run one prototype for a quote validation, or 50,000 pieces for production. Tooling costs are quoted separately for stamped parts, but CNC parts have no tooling charge.
Q: What tolerance can you hold on a heatsink?
A: ±0.05 mm on CNC-machined features like mounting holes and base thickness. Fin pitch and height are typically ±0.1 mm. For TEC mounting surfaces, we hold flatness to 0.05 mm over 100 mm.
Q: What is your lead time?
A: Prototypes ship in 7–15 days after drawing approval. Production runs take 15–25 days, depending on quantity and surface treatment. We quote exact dates when you send the drawing.
Q: Can you provide material certificates?
A: Yes. Mill test certificates for aluminum and copper are included with every batch. Anodizing thickness and salt spray test reports are available on request.
Send your drawing
Send us your 2D or 3D file. We reply with a firm quote in 12 hours—price, lead time, and tolerances we can hold.
Email: sc@bquq.com
WhatsApp: +86 13713157787
No MOQ. No runaround. Just a precision manufacturing partner for your custom heat sinks, made in China.
