Compressed Air and Vacuum

Add up the consumption of every tool and machine in cfm or litres per second, weighted by how much of the time each actually runs, then add around thirty percent for leakage and growth. A correctly sized receiver absorbs the peaks. Ask sellers for the free air delivery figure, not just motor kilowatts, because the two are not interchangeable.

ISO 8573-1 classifies compressed air purity by particles, water and oil content, with Class 0 the certified oil-free grade. Spray finishing, instrumentation and sensitive processes specify a class; general workshop air usually does not. Work out which class your most demanding application genuinely needs before paying for oil-free generation you may not require.

Yes. Air receivers in service fall under the Pressure Systems Safety Regulations 2000, which require a written scheme of examination and periodic inspection by a competent person. A used receiver should be examined before it is pressurised on your site regardless of its history. Ask the seller for the data plate details and any existing examination reports.

Usually, because screw compressors are built for continuous duty and their condition is well documented by hours and service records. The airend is the expensive component, so ask when it was last overhauled and what the hours meter reads. A machine with full service history from a single site is worth more than a low price without one.

Qualifying listings on Machinery Masters can be financed, which suits plant room projects where a compressor, receiver and dryer are bought together. Most compressors and dryers travel on a single pallet, and sellers frequently arrange transport. Confirm eligibility on the listing page and agree loading responsibilities with the seller before collection day.