Head to head
Atlas Copco XATS 138 vs Pramac GRW22Y/S5
The Atlas Copco XATS 138 is a single-axle diesel portable air compressor with pace adjustable pressure. The Pramac GRW22Y/S5 is a stage v rental generator set, 18.3 kva prime power.
Last reviewed 13 September 2026
Specifications side by side
| Atlas Copco XATS 138 | Pramac GRW22Y/S5 | |
|---|---|---|
| Engine | Kubota V2403-CR-T-E5B | YANMAR |
| Working pressure | 7-10,3 bar g | - |
| Free air delivery | 7-5 m3/min; 237-189 cfm | - |
| Emergency standby power ESP | - | 19.3 kVA |
| Prime power PRP | - | 18.3 kVA |
| Voltage | - | 400/230 (V) |
| Emission stage | - | Stage V |
Sources: Atlas Copco XATS 138, Pramac GRW22Y/S5. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the XATS 138 if...
Mid-size towable compressor for breaker gangs, road and utility crews and general contractors who need one machine for several tools. Pressure can be set to suit the job.
Full XATS 138 specifications →Buy or hire the GRW22Y/S5 if...
Rental-series generator set for hire fleets, events, construction sites and city centre works needing temporary three-phase power.
Full GRW22Y/S5 specifications →Common questions
What is the difference between the Atlas Copco XATS 138 and the Pramac GRW22Y/S5?
The Atlas Copco XATS 138 is a single-axle diesel portable air compressor with PACE adjustable pressure; the Pramac GRW22Y/S5 is a stage V rental generator set, 18.3 kVA prime power.
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