Duty cycle describes how long a compressor can run in a given period without overheating. It is one of the most important ratings to check before buying.
What the Rating Means
A continuous-duty machine can run at full load around the clock. An intermittent-duty machine needs rest periods to cool, so its output cannot be sustained.
Why It Matters
Running an intermittent unit beyond its rating causes overheating, oil degradation and early failure, even if the horsepower looks large enough.
Matching to Your Operation
Factories that need air all shift should choose continuous-duty screw compressors rather than smaller intermittent units pushed too hard.
Confirm your daily running hours and we will recommend the right duty class.