SNALCO is a Leading Aluminium Heatsink Profile Manufacturer

Extruded heat sink profiles, cut and machined to your design

A heat sink pulls heat away from a chip, LED or power device and gives it a large surface to shed into the air. Snalco extrudes aluminium (aluminum) heat sink profiles with fins, pins and flat bases, then cuts, drills and machines them to your drawing.

Quick answer Heat sink profiles are extruded in 6063-T5 for good thermal conduction and easy finishing. Thermal conductivity is roughly 200 W/m·K, and the part is about one third the weight of copper.

Why aluminium for heat sinks

Property	Aluminium 6063	Copper
Density	2.70 g/cm3	about 8.9 g/cm3
Thermal conductivity	roughly 200 W/m·K	roughly 385 W/m·K
Weight for same shape	light	about 3 times heavier
Cost and extrudability	low cost, easy to extrude	costly, hard to extrude fine fins

Copper conducts better, but for most products aluminium is the practical answer: it is light, cheap and can be extruded into long fin shapes in one pass.

Design points that decide performance

• Fin height and gap: taller, closer fins add area but need airflow; tight gaps clog in natural convection.
• Base thickness: a thicker base spreads heat from a small chip before it reaches the fins.
• Surface finish: black anodising raises radiation from the surface and protects the metal.
• Flatness of the mounting face: machined faces and thermal paste reduce contact resistance.
• Airflow: natural, fan-forced or liquid assisted designs need different fin spacing.

Where our heat sink profiles go

• LED lights and street lighting
• Inverters, drives and power supplies
• EV chargers and battery systems
• Telecom and networking equipment
• Motor controllers and welding machines
• Audio amplifiers and industrial PCs

Item	What Snalco can supply
Extra services	Round and rectangular heat sink shapes, CNC cutting, tapping, drilling and surface finishing
Alloys	6063 T5/T6 (general sections), 6061 T4/T6 and 6082 T5/T6 (higher strength), 6005, 6060, 6463; 1XXX series on request
Standards	GB 5237-2008, JIS H, AAMA, BS, EN
Finishes	Mill finish, anodised (anodized), powder coating, wood grain, electrophoresis, PVDF paint, sand blasting, polishing
Further processing	Cutting to length, drilling, punching, bending, welding, machining, fabrication of finished parts

Why Snalco

• An in-house tool shop, so new dies and die corrections do not wait on an outside vendor.
• A working quality lab: spectrometer for chemistry, UTS machine, Rockwell and Brinell hardness testers, conductivity meter, metallurgical microscope and a profile projector for dimensions.
• Cutting to length, drilling, punching and machining done at the plant, so you can receive parts ready to fit.
• Own extrusion plant at Kosamba, Surat, built around a 1600 UST four-column hydraulic press that handles 6 inch and 7 inch billets.

How to order

• Section and size: dimensions in mm, wall thickness, and the profile number or drawing.
• Alloy and temper: for example 6063-T5, or 6061-T6 where more strength is needed.
• Thermal need: watts to remove, allowed temperature rise and airflow, so we can suggest a fin design.
• Finish: mill finish, anodised, powder coated or another finish from the list above.
• Length and quantity: cut lengths in mm or full mill lengths, and the total weight or number of pieces.
• Delivery point: a city in India or an export port, so freight and packing can be quoted.

Send your heat sink drawing •  Send the size, alloy, finish and quantity through the contact form, or share a drawing. The Snalco team replies with availability, lead time and a price for your quantity. •  Factory: Block No. 604/2, Kosamba, Surat, Gujarat, India.

Discover the Magic of Aluminium Heat Sinks

When it comes to keeping our electronic gadgets cool, there’s a secret hero at work — aluminium heat sinks. Let’s dive into the world of these ultimate devices and see how they help our electronics stay safe and happy.

What Exactly is a Heat Sink?

Imagine you’re running around in the hot sun. What do you do to cool down? You grab a cold drink or head to the shade, right? Well, that’s kind of what a heat sink does for electronics! A heat sink helps gadgets like computers and LED lights cool down by spreading out the heat so it can escape. This keeps everything running smoothly.

Why Aluminium is the Ultimate Choice

Now, you might wonder, “Why is aluminium used for heat sinks?” Great question! Aluminium heat sinks are like superheroes because they’re light, strong, and super good at spreading heat around. They’re made from extruded aluminium, which means the metal is shaped perfectly to do its job. Plus, aluminium is easy to shape into different designs, like round heat sinks, making it a top choice for all sorts of gadgets.

Aluminium vs. Copper: The Coolness Battle

Let’s talk about the two main materials used in heat sinks—aluminium and copper. Copper is fantastic at conducting heat, but it’s heavy and expensive. On the other hand, aluminium is like the budget-friendly, lightweight champion. Even though it doesn’t conduct heat as well as copper, it’s still a great choice because it’s way lighter and much cheaper. This means aluminium heat sinks can be used in all kinds of devices without making them heavy or too costly.

How Does a Heat Sink Work Its Magic?

A heat sink’s job is to keep electronic components, like those inside your computer or car, from getting too hot. It’s like a fan for your gadgets, but without the moving parts. When your device gets hot, the heat sink absorbs the heat and spreads it out, cooling down the parts so they don’t overheat.

But it’s not just about using any metal. The aluminium heat sink needs to be shaped just right to work efficiently. That’s why manufacturers like Snalco, one of the top aluminium extrusion companies in India, make sure every heat sink is designed to cool down gadgets as quickly as they heat up.

Where Do We Find Heat Sinks?

Heat sinks are pretty much everywhere, but here are some places you’ll definitely find them:

• LED Lights: Heat sinks help keep LED lights from getting too hot, so they last longer and shine brighter.
• Computers and Circuit Boards: These need heat sinks to keep all the tiny parts inside cool.
• Cars (Especially Electric Ones): Cars have lots of electronics that need to stay cool, especially the new energy vehicles (NEVs). Heat sinks are the key!

And did you know? Some of these heat sinks are customized to fit just right, thanks to experts at Snalco, who can make extruded aluminium heat sinks in all sorts of shapes and sizes!

Why Choose SNALCO for Your Aluminium Heat Sinks?

When it comes to heat sink manufacturers, Snalco is a name you can trust. We’re one of the top aluminium extrusion companies in India, specializing in making high-quality heat sinks that keep your electronics cool. Whether you need a round extruded aluminium heatsink or something custom-made, Snalco’s got you covered.

Our experts work hard to make sure every aluminium extrusion heat sink is perfect for the job. We use advanced technology to create heat sinks that are not only efficient but also reliable. So, if you need a heat sink that’s designed just for you, Snalco can make it happen!

In the world of electronics, aluminium heat sinks play a vital role in keeping things cool. They’re lightweight, cost-effective, and can be customized to fit any need. With companies like Snalco leading the way, you can trust that your gadgets will stay cool and safe, no matter how hard they work.

Whether you’re looking for aluminium extruders in India or need a customized extruded aluminium heat sink, there’s a solution out there just waiting to cool down your world!

Frequently asked questions

What is an extruded aluminium heat sink?

It is a heat sink made by pushing hot aluminium through a shaped die, which gives long fins in a single piece. The length is then cut to size and machined as needed.

Aluminium or copper heat sink: which is better?

Copper conducts heat better, but aluminium is much lighter and cheaper and extrudes into finer shapes. Most LED and electronics products use aluminium.

Can Snalco make a custom heatsink profile?

Yes. Send a drawing or the thermal requirement and our tool shop designs the die, then supplies trial samples.

Which alloy is used for aluminum heat sink extrusion?

Mainly 6063-T5. Other 6xxx alloys can be used when the part also carries load.

Do you offer CNC machining and anodising?

Yes. We cut, drill, tap and machine profiles, and supply anodised or powder coated finishes.

What is the minimum order?

Minimum order depends on the section and die status. Share the profile and expected yearly volume for a clear answer.