A screw compressor is chosen where air is needed continuously rather than in bursts. A piston machine cycles on and off and is sized on peak demand; a screw machine runs on and is sized on the flow it has to hold. Power in kW and free air delivery are the two figures that place it, and both sit on every listing here. That difference is why a screw machine is specified rather than upgraded to, and why the sizing question is asked first.
Free air delivery runs 8 to 75.9 across the leaf with power from 2.2 to 75kW and pressure from 8 to 15 bar. The small end covers a busy single bay and the large end covers a factory line. Sizing on delivery rather than on power avoids the common mistake of buying motor size and hoping the flow follows.
Receiver and dryer options are the next decision and they are ordered as part of the machine rather than added later. The Clarke CXR ladder runs from 3HP at 230V up to 100HP at 400V in N, R, RD and DR forms, where the letters state whether a receiver, a dryer or both are included. Receivers on this leaf run 90 to 500 litres. Ordering the dryer with the machine also means the two are matched on flow rather than paired afterwards.
Noise is stated on 62 lines from 58 to 70dB, which is low enough that a screw machine can often sit where a piston machine could not. Energy saving and controller variants across the Fini MICRO ladder manage output against demand rather than running flat out. Sizing questions go over WhatsApp on 07754288583 with the tool list. SIP, Power Systems G-TEC, FPS and TIGREN lines run alongside the Fini and Clarke ladders.
| ITEM NO | 08220 |
|---|---|
| Input Supply | 400v 3-PHASE |
| Motor Power | 4kW (5.5hp) |
| Receiver Size | 270ltr |
| Free Air Delivery (FAD) | 16.20CFM (460ltr/min) |
| ITEM NO | 08221 |
|---|---|
| Input Supply | 400v 3-PHASE |
| Motor Power | 5.5kW (7.5hp) |
| Receiver Size | 270ltr |
| Free Air Delivery (FAD) | 24.90CFM (705ltr/min) |
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