## Opening
Your drawing defines the part. We build it. Every adhesive back heatsink is machined or stamped to your exact dimensions, then verified against your file before shipment. No guesswork, no
Your drawing defines the part. We build it. Every adhesive back heatsink is machined or stamped to your exact dimensions, then verified against your file before shipment. No guesswork, no second-rate substitutions.
We run three dedicated heat sink lines: CNC machining for complex fin geometries, stamping for high-volume flat or folded designs, and an adhesive assembly station for tape-backed parts. All processes happen in one 8,000 m² factory in Dongguan.
| Parameter | Value |
|---|---|
| Materials | AL 6063-T5, AL 6061-T6, C1100 copper, A1050 pure aluminum |
| Machining process | 3-axis & 4-axis CNC, precision stamping, skiving |
| Tolerance | ±0.05 mm (CNC), ±0.10 mm (stamping) |
| Surface finish | Bare, clear anodize, black anodize, nickel plating, chromate |
| Adhesive backing | 3M 8805, 3M 9448A, or customer-specified tape |
| Max part size | 600 mm × 400 mm × 150 mm (CNC) |
| Min fin thickness | 0.8 mm (CNC), 0.3 mm (stamping) |
| Batch size | 1 to 100,000+ pieces |
| Inspection | 100% dimensional check on critical features, CMM report per batch |
| Lead time | 7 days prototype, 15–20 days production |
Every adhesive back heatsink gets a flatness check on the mounting surface. We hold 0.05 mm flatness across the base to ensure full contact with your component. Tape application is done in a clean room to avoid dust contamination.
2. Inspection report per batch. You receive a dimensional report, material certificate, and surface finish measurement with every shipment. No extra charge. The report matches your drawing callouts, not a generic checklist.
3. One factory for CNC + stamping + spring + heatsink. Your assembly might need a stamped bracket, a compression spring for mounting, and a machined heat sink. We make all three under one roof. You save shipping costs, avoid tolerance mismatches between suppliers, and get one person to call for every issue.
Adhesive back heat sinks are common in power electronics and LED lighting. Specific applications we ship regularly:
The adhesive backing eliminates screws and thermal paste, cutting assembly time by 30–40% compared to mechanical mounting. That is why most of our buyers use these parts in high-volume consumer or automotive electronics.
Q: How do you guarantee tolerance and quality? We machine to ±0.05 mm on critical features. Every part is checked with calipers, pin gauges, and a CMM for complex geometry. The inspection report is included in your shipment. If a part fails your incoming QC, we replace it at no cost and cover freight.
Q: What is your lead time for custom heat sinks? Prototype: 7 days after drawing approval. Production: 15–20 days depending on quantity and surface finish. We run two shifts, so urgent orders can be expedited to 5 days for prototypes.
Q: Do you provide material certificates? Yes. Every batch ships with a mill certificate for the aluminum or copper, plus our own inspection report. If you need third-party testing (SGS, TÜV), we arrange it at cost.
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 |
