About Air Compressors for Impact Wrenches
Plan on 4–7 CFM at 90 PSI for ½″ impact wrenches, 7–10 CFM for ¾″ and 10–15 CFM for 1″ heavy-duty trucks impacts. Match the compressor to the impact, not the other way around.
A 50L tank smooths the demand of repeated impact bursts and lets the compressor catch up. Sustained tyre or chassis work benefits from a 100L+ belt-drive unit.
Top picks: SIP Airmate ISBD11/100, Hyundai HY30100, Clarke SE16C150, Sealey SAC2503B.