Factory-direct · Dongguan, China · Since 2010
Custom Copper Heat Sinks, Built to Your Drawing
Skived copper heat sinks CNC-machined from oxygen-free copper (C1100 / TU1) in our own factory in Dongguan, from first samples to volume production.
Send Your DrawingView Products
- MOQ 1,000 pcs per design
- Samples in 7–12 days
- Oxygen-free copper C1100 / TU1
- Reply within 12 hours
ISO 9001:2015 (Dongguan factory) · amfori BSCI audited (2026) · Alibaba Verified, Intertek onsite check · Certifications →
Start With What You Have
Most heat sink projects reach us in one of three ways. Every one starts with a free review of your drawing or requirements by our team.
You have a drawing
Send the STEP, DWG or PDF with material, finish and tolerances. We check it for skiving and machining, then quote.
You have a sample part
Send photos and key dimensions of the part you use today. We confirm what we can match and what needs a drawing.
You have a heat load and a space
Tell us the power, footprint, height and airflow or coolant. We suggest a skived design to start the conversation.
Products
Skived copper heat sinks are our main product. Other copper thermal designs are quoted on request.
Skived Copper Heat Sinks
Fins and base cut from one copper block
Custom / OEM Thermal
Outline, holes and fins as you specify
Liquid Cold Plates
Copper cold plates for power electronics
Bonded-Fin Heat Sinks
Tall fin stacks for high power
Heat-Pipe Heat Sinks
Heat pipes with fin stacks
Real Parts From Our Production
Every photo below is a copper part made in our Dongguan factory to a customer drawing. Sizes, fin geometry and mounting features differ for each project.
Made for Volume Orders
We build heat sinks for OEMs, module makers and distributors who need the same part repeated across thousands of units.
- MOQ 1,000 pcs per design, with best pricing from 5,000 pcs
- Samples in 7–12 days for your sign-off
- Production in 25–40 days, depending on quantity
- Each batch checked against the approved sample and your drawing
How We Make It
CNC machining, skiving, finishing and inspection happen in our own factory in Dongguan, so we control quality and timing.
Why Buyers Choose CS Precision Thermal
Our own factory
Skiving and CNC machining in our group's Dongguan factory. You deal with the people who make your parts.
Built to your drawing
Fin thickness, pitch, height and base flatness follow your drawing, not a catalogue.
Clear terms
MOQ 1,000 pcs, samples in 7–12 days, production in 25–40 days. Stated up front.
One accountable partner
CS Precision Inc (Wyoming, USA) for North American sales; our Hong Kong company for international contracts.
Industries We Supply
Tell us where the heat sink goes and what it has to cool. We start from your space and heat load.
Frequently Asked Questions
What is your minimum order quantity?
1,000 pcs per design. Best pricing starts from 5,000 pcs.
How long do samples and production take?
Samples take 7–12 days. Production takes 25–40 days, depending on quantity.
What copper do you use?
Oxygen-free copper C1100 / TU1. Material certificates are available on request.
What do I need to send for a quote?
A drawing (STEP, DWG, DXF or PDF), quantity, finish and any tolerance or flatness requirements. See our quote checklist.
Do you make bonded-fin, heat-pipe heat sinks or cold plates?
Our main product is the skived copper heat sink. Other copper thermal designs are quoted on request: send your drawing and we confirm feasibility, MOQ and lead time.
Send Your Drawing for a Quote
Send a drawing or your key requirements. We reply within 12 hours with questions or a quote.
Talk to Anna
Heat sink projects
Dongguan, Guangdong, China · Reply within 12 hours