Dan Jennings says
A 3hp, 100 litre air compressor is a solid workshop unit for running air tools, blowing down parts, tyre work and light spraying where a steady air supply matters. In a bodyshop or fabrication shop, I look at these as the backbone of the air system rather than a convenience item.
The main point is matching the compressor to the job and the tool demand. If the air line, regulator and filter are not set up properly, even a capable machine will feel short of air at the gun or tool. Moisture management also matters, especially for paint work and any job where clean air is needed.
In practice, one common issue is people running a compressor hard without allowing enough recovery time, which leads to hot running, more condensate and inconsistent output. I also see poor pipework and undersized fittings causing avoidable pressure loss.
Used correctly, this type of compressor gives dependable workshop air and keeps routine jobs moving without constant waiting.
Dan Jennings, Senior Engineer