Noise from oil-free air compressors
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Everyone, my company has an oil-free air compressor that operates at power frequency; it’s from a top-quality brand. Every time it starts working, it produces a high-pitched sound, similar to the noise caused by mechanical friction. But the oil-free inverter model next to it (also from the same brand) doesn’t experience this issue. The supplier said that standard-frequency models are just that noisy; I haven’t used one before, so I’m not sure. I would like to ask everyone for advice.
Most equipment comes with a warranty; some noises are completely normal, so give it some time to see. The sound of air flow \"friction\" can be distinguished from mechanical friction. Generally, the basic friction noise does not completely disappear during the no-load and loaded processes. Let’s give it some time to see.
The methods of controlling the two should be different, right? Take a close look to see if the control schemes are consistent