Every electronic device generates heat, and without a good heat sink it will not go far. At Mecanizados Nymec we specialize in aluminum heat sink machining and serial production: large runs of identical parts, ready to assemble, with consistent quality from the first piece to the last.
The aluminum heat sink: a key part of electronics
A heat sink draws heat away from components such as transistors, power modules, LEDs and processors and releases it into the air through its fins, keeping equipment from overheating and losing service life. Aluminum (aluminium) is the reference material because it combines good thermal conductivity, low weight, reasonable cost and excellent extrudability and machinability. That is why it is found in power electronics, LED lighting, telecommunications and renewable energy. Good machining makes the difference between a heat sink that works on paper and one that works inside the equipment.
Specialists in aluminum heat sink machining
At Mecanizados Nymec we turn aluminum profiles into ready-to-assemble heat sinks. We cut to length, drill and tap holes to mount components, mill pockets and seats, and face the base, the surface in contact with the component, which must be flat and smooth to transfer heat efficiently. We do it on our Haas VF-2SS, VF-3SS and VF-4SS vertical CNC machining centres, 3-axis machines that are ideal for machining heat sinks.
Every heat sink is different: fin height and count, hole length and position all vary. That is why we prepare the programming and fixturing for each reference so the fins do not deform and the base stays flat across the entire run.

Serial production: thousands of parts, all identical
Our way of working is built for series. Once the first part is approved, we program the process and repeat it with the same setup, so part number one thousand comes out exactly like the first. We spread production across around ten CNC machining centres and back every run with digitised quality control, so each heat sink meets the drawing and fits the assembly without surprises. We can take on aluminum heat sink machining from prototype runs to series of thousands of parts.
We are a versatile company: besides CNC machining we offer complementary services: cutting and punching, machining design and engineering, quality verification and control, and product assembly. One supplier covers machining, inspection and assembly of your parts.
Who we machine for
We machine aluminum heat sinks for manufacturers of power electronics, inverters and power supplies, LED luminaires, telecommunications equipment, industrial automation and renewable energy systems, and also for the automotive and rail sectors, where thermal management is just as critical. If you already have a design, we machine to your drawing; if you are looking for the most efficient solution for a run, we help you define the machining. Whether you need hundreds of parts or thousands, we adapt the process to the size of your series.
From drawing to series: how we work
Send us your drawing, quantity and lead time. We study the part, prepare a quote and, if you need it, first make a sample for approval. Once you sign off, we move on to the full series, with the same quality in every delivery and for customers in any country.
Need machined aluminum heat sinks in series? Send us your drawing and quantity and we will prepare a quote: write to info@mecanizadosnymec.com or call +34 966 967 475.
Este artículo también está disponible en español: mecanizado de disipadores de calor de aluminio en serie.