Been only able to really read about complete fill times for tanks with the cs4. I apologize if this has been beat to death. How long is it taking you guys with this compressor using it for a 6.8L bottle to run from like 3200 - 4300 psi ? Thank you.
This is not directly responsive to your question but it's the only data I have. Topping off a 9 liter tank with a CS4-i from 200 bar to 300 bar takes 1 hour and 14 minutes. The first 3 minutes pre-pressurize the filter system to 200 BAR. The final 3 minutes the compressor runs at no load to cool down.