What’s Inside a Vape Coil?
Have you ever stopped to think about what’s inside your vape coils and how they actually work? The replaceable pre-built vaping coil is actually a pretty remarkable thing. It’s the centerpiece of your vape tank,
mediating the flow of both e-liquid and air while producing the vapor that you inhale. When you enjoy that perfectly satisfying and flavorful puff, you can thank your coil for that. When your tank manages to keep all of its e-liquid inside the glass despite having several huge holes for airflow, you can thank your coil for that
as well. Tools you will need to disassemble (and rebuild your vape coils)
So, what’s inside a vape coil? Let’s have a look.
How to Disassemble a Vape Coil
Did you know that you can disassemble almost any pre-built vape coil on the market with relative ease? If you have a coil that you’re just about ready to throw away – maybe you’ve cleaned it one too many times with your ROBO2020 vape coil cleaner, and it’s just about reached the end of its life – you can disassemble your vape coil as you follow along with this article. Understanding the parts and construction of a vape coil can go a long way toward helping you diagnose what’s happening when your vaping experience isn’t everything you’d like it to be.
Before disassembling the coil, rinse it in the sink and dry it with a paper towel.
On the bottom of the coil, you’ll see a small metal plug. Pull it out. The two wires that you see are the coil’s positive and negative leads, separated from one another by a rubber ring. Depending on the design of the coil, you can remove the entire assembly – wires, wick, and all – either by pushing it through the top of the coil or by pulling it out the bottom. Try one method, and if it doesn’t work, try the other.
Now that you’ve disassembled your coil, what exactly are you looking at? Well, we’re getting a little ahead of ourselves. First, let’s talk a bit more about the parts of a vape coil as viewed from the outside.
What Are the Parts of a Vape Coil?
As you’ve already learned from examining one of your own vape coils, the metal pin at the bottom of the coil serves two purposes. The first purpose is that it connects to the bottom metal hardware of the tank, transferring power from the battery of your vaping device to the coil’s heating wire.
The second purpose of the metal pin is that it holds the coil’s rubber insulator in place. The insulator prevents the coil’s positive and negative leads from touching each other and causing a short circuit.
Around the pin are the coil’s air intake holes. When you vape, air flows through the holes in the bottom of your tank and through the coil’s intake holes before ultimately exiting through the tank’s mouthpiece.
On the side of the coil, you’ll find its wick openings. The openings are tightly packed with cotton, which controls the flow of e-liquid into the coil. If it weren’t for the cotton, e-liquid would flow directly from the tank into the coil assembly, where it would then leak out of the tank through the air intake holes at the bottom of the coil. The cotton supplies the coil’s heating wire with e-liquid at a controlled rate while also ensuring that the e-liquid in the tank’s glass reservoir stays put.
Through the top of the coil, you’ll see the heating wire – and if you followed along with our coil disassembly instructions above, you’ve already got that component in your hand. Let’s examine the interior of your vape coil a bit more closely.
What’s Inside a Vape Coil, and What Can You Learn From It?
Once you’ve removed the heating wire and wick from your coil, you’ll see that what’s inside a vape coil is often fairly simple. While some coils do have several heating wires inside a single package, they’re all arranged in much the same way – with a strip of cotton wrapped around a coiled wire or a strip of metal mesh. After you’ve removed the heating wire from your coil, you may notice that the interior of the coil assembly has quite a bit of additional cotton batting. Today’s coils often need a lot of extra cotton to ensure that they’re kept supplied with plenty of e-liquid.
Once you’ve removed the heating wire from your tank, you can remove the cotton that’s wrapped around it. At this point, you can determine conclusively what caused the coil to reach the end of its life. Is the metal covered with a dark, unpleasant looking residue? If the buildup is thick enough, it may have even stained the cotton brown. That’s coil gunk, and here at ROBO2020, coil gunk is our specialty. Our automatic coil cleaner removes the gunk and makes it possible for you to use your coils again and again with little to no loss of performance or flavor.
On the other hand, you may find that your coil’s heating wire is still almost perfectly white. When you unwrap the cotton, though, you might see several dark lines where the cotton used to touch the heating wire. That’s a burned wick. When something burns, it undergoes pyrolysis, which is to say that its molecular structure changes forever. Once cotton is burned, no amount of cleaning can ever get the original cotton back. Even ROBO2020 can’t fix a burned wick, so it’s important to do everything possible to prevent that from happening.
Knowing what’s inside a vape coil is going to enhance your vaping experience in ways that you may not even realize yet because it can allow you to diagnose a huge variety of vaping problems. Suppose, for instance, that your tank starts gurgling when you vape. In that case, you know that there must be excess e-liquid in the coil assembly interrupting the airflow path. Do you notice a burning sensation at the end of long puffs? Now, you know that the coil’s wick is drying out and is at risk of being burned. The coil is at the center of the entire vaping experience, and understanding how the coil works will help to ensure that your experience is always as good as it can be.