So as dumb as this may sound....what’s the significant difference between the single and the twin compressor (I realize it’s bigger). Eddie are you able to air up your tires in a reasonable amount of time and is there a comparison to the time vs the twin?
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The output in Cubic Feet per Minute (CFM) is almost double with the twin and higher duty cycle...
From reviewing the spec sheets the single has a 50% duty cycle and the twin has a 100% duty cycle but does not specifically state that it is rated for constant duty nor does it give run time, pressure, or temperature impact on duty cycle.
Example of 50% duty cycle: run for 30 minutes then should be allowed to cool for 30 minutes to prevent burning it up
Example of constant duty: Run indefinitely at a certain pressure without cool down.
Both the single and twin have thermal protection which should shut the compressor down before they get too hot or burn up.
Duty cycle is more important when running tools or airing up pickup truck and trailer tires to 80+ PSI (especially when there are 10 tires or more to fill). If all it is ever used for is airing jeep tires up to 30 PSI and for air lockers the 50% duty cycle is more than enough.
ETA: When i bought my first quality compressor constant duty cycle up to 100 PSI was the selling factor for the Viair 450P, it has way lower CFM than the ARB twin but was half the price and came in a cary bag with 30 foot line and tire gun with gage. Before that I had a $75 slime unit rated at 150 PSI from Wallyworld, it was great for atv tires but the first time i tried to air up a trailer tire the air lines melted off of it before I got to 60 PSI.