Typical tattoo machines will use
ten wrap coils. This is actually very vague because you do not
know the gauge of wire used during the wraps. You also do not
know exactly what a “wrap” is. One coil manufacturer might call
a wrap slightly differently than another manufacturer. You also
have to take into consideration if the coils are hand wound or
if a machine spools them. Eight wrap coils are pretty common
as well. You may see twelve or higher wraps every once in a
while. The theory behind the wrapped coils is that the more wire
around the coil, the stronger the magnet will be. This is also
what I consider fuzzy logic because you cannot just rely on the
coil’s wrap. You need to know the diameter of the core within the
coil and the mater which the core is made of.
Remember that the electricity flows through the wire, through
the capacitor, and around the second core before it finally goes
up to the contact point. The more wire there is for the current to
flow through, the more voltage will be required to get it there.
The more voltage used, the more likely the machine is to get
hot. Some artists will say that when a coil heats up it is not going
to run as consistently as when it stays cool. This could be
caused by the metallurgy changing or because the expansion of
the wires and coils. Either way, in my opinion a properly configured
tattoo machine should not get too hot.

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