## 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 shipme
Custom Heat Sinks Made in China | Precision Manufacturing, No MOQ
## 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
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
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.
Tolerance: ±0.05 mm on CNC-machined features
Lead time: 7–12 days for prototypes, 15–20 days for production runs
No MOQ: order 1 piece or 10,000
Surface finish: bare aluminum, anodized black, or nickel-plated
Material: AL 6063-T5, AL 6061-T6, or copper 110
Specifications
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.
Three Reasons Buyers Send Us Their Drawings
1. Batch-traceable quality. Each batch gets a unique lot number. Raw material certs, machining parameters, and inspection results are linked to that number. If a problem appears in your assembly line, we trace it back to the exact heat treatment or tool pass in minutes.
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.
Where These Parts Are Used
Adhesive back heat sinks are common in power electronics and LED lighting. Specific applications we ship regularly:
LED drivers – aluminum heat sinks with 3M tape bonded to the driver housing, dissipating 5–15 W
MOSFET and IGBT modules – copper or aluminum bases with fin arrays, mounted directly to the switching device
Raspberry Pi and single-board computers – small stamped heat sinks with adhesive pads, cooling 1–3 W processors
DC-DC converters – low-profile heat sinks in automotive and telecom enclosures
Amplifier modules – larger CNC-machined heat sinks with high fin density for 50–200 W audio or RF power
Battery management systems – heat sinks bonded to balancing FETs in EV and energy storage packs
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.
Questions Buyers Ask Before Ordering
Q: What is your MOQ?
No MOQ. We accept single-piece prototypes and full production orders. The unit price drops with quantity, but we never turn away a one-off sample.
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.
Send Your Drawing
Email your PDF or STEP file to sc@bquq.com or message us on WhatsApp at +86 13713157787. We reply with a firm quote within 12 hours. The quote includes unit price, tooling cost (if any), lead time, and shipping options. No obligation, no pressure. Just a precise number for your custom heat sinks, made in China with full traceability.
