## Opening
Your U-shaped aluminum heatsink channel starts as a drawing. It ends as a verified part, dimension-checked before it leaves our floor. We do not guess. We measure.At a glance: tolerance ±
Your U-shaped aluminum heatsink channel starts as a drawing. It ends as a verified part, dimension-checked before it leaves our floor. We do not guess. We measure.
At a glance: tolerance ±0.05 mm on critical fins, lead time 7–12 days for prototypes, no MOQ, batch traceability from raw billet to final anodize.
We are BQUQ, a precision manufacturing factory in Dongguan, China. Twenty years in CNC machining, metal stamping, springs, and heat sinks. Your drawing is our instruction.
| Parameter | Value |
|---|---|
| Material | Aluminum 6063-T5, 6061-T6, 1050, 1100 (or your spec) |
| Profile shape | U-shaped channel, custom fin pitch, depth, and length |
| Machining process | CNC milling, CNC turning, extrusion + CNC finishing |
| Tolerance | ±0.05 mm on fin spacing; ±0.1 mm on overall length |
| Surface finish | As-machined 3.2 Ra, or anodize (clear, black, hard coat) |
| Flatness | 0.1 mm per 100 mm length |
| Max part size | 600 mm x 400 mm x 200 mm (larger on request) |
| Batch size | 1 piece to 100,000 pieces |
| Lead time | 7 days prototype, 12 days production (typical) |
| Inspection | CMM report, surface profilometer, hardness test per batch |
| Certifications | ISO 9001:2015, material certs from mill (EN 10204 3.1) |
We cut, mill, deburr, and finish in-house. No subcontracted steps that hide defects.
2. Inspection report per batch. You do not have to trust our word. Each batch ships with a dimensional report, surface finish readings, and material certs. For critical fins, we include CMM point data. You can verify every number on your own CMM.
3. One factory for CNC + stamping + springs + heatsinks. Your assembly may need a stamped bracket, a spring clip, or a CNC-milled base plate. We make all of it under one roof. Fewer suppliers, fewer handoffs, fewer tolerance stack-ups. You get one responsible party for the whole thermal assembly.
U-shaped aluminum heatsink channels are not decorative. They pull heat away from components that would otherwise fail.
If your application generates heat, this shape removes it.
Q: How do you guarantee tolerance and quality? A: First article inspection on every new drawing. In-process checks every 2 hours during production. Final CMM report on a sample per batch. If a dimension is out of spec, we rework or scrap it before shipment. You get the report, not just the part.
Q: What is the typical lead time? A: Prototype: 7 days after drawing approval. Production: 12 days for standard quantities. For urgent orders, we can split the batch and ship partials. We quote the real time, not an optimistic one.
Q: Can you provide material certificates? A: Yes. We supply mill certificates with heat number, chemical composition, and mechanical properties. For aerospace or automotive, we also provide traceability to the original ingot.
Stop comparing quotes from middlemen. Send your PDF or STEP file to BQUQ. We will reply with a firm price, lead time, and DFM feedback within 12 hours.
Email: sc@bquq.com WhatsApp: +86 13713157787
Precision manufacturing, custom heat sinks, made in China—with a factory that verifies before it ships. Your drawing is the first step. The measured part is the last.
Looking for a different part? We also machine Custom Corrugated Fin Heat Sinks | Precision Manufacturing No MOQ 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 |
