OpeningYour drawing. Our machines. A heatsink that fits exactly where it must.We are BQUQ, a precision manufacturing factory in Dongguan, China. 20 years on the floor. CNC machinin
Custom Heat Sinks Made in China | Precision CNC & Stamping No MOQ
OpeningYour drawing. Our machines. A heatsink that fits exactly where it must.We are BQUQ, a precision manufacturing factory in Dongguan, China. 20 years on the floor. CNC machining, metal stamping, s
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your drawing. Our machines. A heatsink that fits exactly where it must.
We are BQUQ, a precision manufacturing factory in Dongguan, China. 20 years on the floor. CNC machining, metal stamping, springs, and heat sinks under one roof. We make DC-DC module heatsinks from your PDF, STEP, or even a napkin sketch.
Every part is verified before shipment. Not sampled. Every batch.
Tolerance: ±0.05 mm on machined features
Lead time: 7–12 days for prototypes, 15–20 days for production
No MOQ: order 1 piece or 100,000
Surface finish: anodize, nickel, tin, or bare
Material: aluminum 6061, 6063, 5052, copper C1100
Specifications
Parameter
Value
Notes
Material
Al 6061-T6, 6063-T5, 5052-H32, Cu C1100
Lead-free, RoHS compliant
Machining
CNC 3-axis & 4-axis
Max part size 800×600×300 mm
Stamping
Progressive die, 25–160 ton
For fins, clips, brackets
Tolerance
±0.05 mm (machined), ±0.1 mm (stamped)
Tighter on request
Surface finish
Anodize (clear, black, hard), Ni plating, tin plating
Thickness 8–25 μm anodize
Flatness
≤0.1 mm over 100 mm
Critical for TIM contact
Roughness
Ra 0.8–1.6 μm on mating face
Optional mirror polish
Batch size
1–100,000 pcs
No MOQ, tooling amortized per order
Inspection
CMM, 2D projector, thermal resistance test
Report per batch, PDF or hard copy
Lead time
7–12 days prototypes, 15–20 days production
Air freight available
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Every heatsink gets a heat number and a QC stamp. You can trace the material lot, machine operator, and inspection date. If a field failure happens, we pull the batch record in minutes. No guesswork.
2. Inspection report per batch.
You get dimensional data, surface finish readings, and thermal resistance values. Not a generic certificate. Real numbers from our CMM and thermal test rig. If we miss a spec, you know before it ships.
3. One factory for CNC + stamping + springs + heatsink.
Your DC-DC module needs more than a heatsink. It needs a spring clip, a stamped baseplate, maybe a machined mounting block. We make all of it in-house. One PO, one quality system, one shipping address. No juggling three suppliers across time zones.
Where these parts are used
DC-DC module heatsinks from BQUQ go into:
Telecom rectifiers – 48V to 12V modules, forced-air cooling. Our stamped fin arrays handle 50–150 W dissipation.
Industrial motor drives – IGBT modules on aluminum baseplates. We hold flatness under 0.1 mm so thermal paste works.
EV charging stations – Liquid-cooled or finned heatsinks for high-power DC converters. Copper inserts for hot spots.
Server power supplies – Low-profile heatsinks, 10–20 mm tall, for 1U and 2U chassis.
Medical devices – Quiet, natural convection designs. Anodized black for emissivity.
Railway auxiliary converters – Vibration-resistant stamped clips plus machined heatsinks.
If it converts DC voltage and gets hot, we’ve made a heatsink for it.
Q: Do you really have no MOQ?
A: Yes. We run prototypes at 1–5 pieces. Production runs start at 100. Tooling cost is quoted separately and amortized if you repeat orders.
Q: What tolerance can you hold on a stamped heatsink?
A: ±0.1 mm on stamped features, ±0.05 mm on CNC-machined surfaces. For critical mating faces, we can go to ±0.02 mm with a grinding pass. Ask us before quoting – we’ll tell you if it’s worth the cost.
Q: How fast can I get a sample?
A: 7–12 days for CNC-machined prototypes. Stamped parts need tooling – 15–20 days for soft tool, 25–35 days for hard tool. We ship via DHL or FedEx.
Q: Do you provide material certificates?
A: Yes. Mill certificates for aluminum and copper, RoHS and REACH declarations, and our own inspection report with dimensional and thermal data. All free with every batch.
Send your drawing
Stop guessing if a heatsink will fit. Send us your drawing and get a firm quote in 12 hours.
Email: sc@bquq.com
WhatsApp: +86 13713157787
We reply within 1 business hour. We’ll confirm material, tolerance, and lead time. Then we make it.
Precision manufacturing. Custom heat sinks. Made in China. No MOQ. That’s BQUQ.
