Understanding and Reducing Air Compressor Cost - Mark

Everything mentioned in this article, is a simplified version of things to keep in mind when servicing your air compressor installation. Never perform any work on your screw compressor, piston compressor, air treatment or other equipment that you are not qualified to perform, but instead consult an expert.

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Having your own compressor is filling your tank for free!
And the next fill is also for free.


.....until:

1. you have to change the MS/AC filter(s).
2. you get the electricity bill.
3. your air smells like sour milk (and likely were too late for point 1).
4. you realise that the condensate should be drained every 15 minutes instead of every 15 years (this one can get really expensive).
5. your compressor needs maintenance.

Wear and tear of a compressor is determined by the starts/stops, and the rotation speed. Small portable compressors run usually over rpm with a relatively low fill speed. They get really hot and not built for continuous operation (so after filling 1 tank, they need to cool down).
Compressors built for continuous operation usually run around - rpm.

The need to starting (and stop) a compressor can be reduced by using banks, so the compressor can fill the bank in one long run.

Filters are usually sold sealed (this is where the compressor manufacturers make their money), but if you have a refillable cartridge, it's a lot cheaper to refill the cartridges yourself. The lifetime of a filter depends on the size and the humidity in your area.
A compressor without back-pressure valve or pressure maintenance valve will diminish the lifetime of a filter even faster.

The condensate can be drained automatically if the compressor is equipped with an ACD. A timer opens a solenoid every 15 minutes during 6 seconds to drain the moisture. Small compressors are usually without ACD and require manual drainage.

Not a fact but my opinion:
4-stage compressors manufactured between and were built-to-last-forever. No problem at all if the runtime clock shows several thousand hours of operation (with proper maintenance). Cost?

There's a part of me that says I should babysit the compressor so I can be quick to deal with any issues that come up. I can be absent minded... stepping away for a 5 min business call and that turning into something else.... well I could see an AL tank getting filled to 4K real quick, lol.

The flip side is I just bought bank bottles that I need to get into operation. Being able to step away for ~ an hr would be awesome. For that, semi-automation sounds really good.

It depends probably on the type of compressor you have. The one in the photo is for draining the 2nd, 3rd and 4th compressor stage of a Bauer K14.

Rix SA-6

Aaah, that's why you need to buy another compressor!

I hope to get quite a few years out of what I have, but so far I'd be willing to buy another in a second.

Yeah me too, I always set my timer on my , it's the best thing,

I have a bluetooth headset that I wear under ear muffs (my compressor is very loud). I have an app called "Repeat Alarm" that I have set for 10 or 15 min incriments depending. It rings in my ear and I know to bleed the coalescers. I'm sure there's better ways, but it works for me to keeps me in check.

I run the stopwatch at the same time that way I know how much time I've been at it and can add that to my notes when finished (for changing filters / service, etc.).