you run at 100% duty cycle ? Naturally during cutting there is a lot a times when air is not flowing . before a pierce during travel, during some rapid time. If compressor is always running it is too small for the application .
The air mixes with the air in the tank in does not bypass it so a lot of heat transfer is happening . Also the tank is normally at a higher pressure then the rest of the system. a regulator is installed after the tank.
When you pressurize a vessel the contents must reject heat . Pressure and temperature are linked.
The tank is designed to capture moisture so what is the benefit to keep moisture from condensing there?
The coil is subject to a pulsing air flow that is at the highest pressure of the whole system ( between the pump and tank) which also means to is also subject to the highest pressure loss because of friction.
After the tank the air flow is not pulsing and at a lower pressure and had also lost a lot of its heat. now the coil is subject to a lower pressure so it has a lower friction loss.
At the end of the day having the coil after the tank will ultimately remove more btus from the system to this point with less work and unnecessary stress on the compressor.
Yes, The back pressure on air pumps will cause them to run hotter introducing more heat into the air.
Really what are the benefits to having the cooler between the pump and tank???
ease of installation?
seeing lot of water come out of cooler that would have mostly condensate to the tank anyhow?
I have trouble seeing any benefit