Compressors.

Looking for reliable power on the job? Our Atlas Copco and Peerless air compressor range has everything you need to tackle any task with confidence. We offer trusted portable units suited to on-site work, as well as powerful, durable systems for industrial applications. Whether you need compact solutions for small-scale projects or heavy-duty compressors for demanding operations, our equipment is built for consistent, high-performance results. Designed for efficiency and reliability, our air compressors ensure your operations run smoothly, helping you achieve the results you need, every time. Explore our range today.

FAQs

Common questions answered.

Five of the questions we hear most often on carpark and street linemarking gear. Full knowledge base on our FAQ page.

  • Piston or screw compressor?

    Piston (reciprocating) for intermittent workshop air supply up to ~10 HP - tyre inflation, air tools, paint spraying. Rated 50-70 percent duty cycle. Lower capex, simple service. Screw (rotary screw) for continuous industrial air supply 10+ HP - 100 percent duty cycle, much longer service life, lower noise. Match the compressor type to the duty cycle. A piston used continuously wears in months.

  • Oil-flooded or oil-less?

    Oil-flooded (most workshop compressors) use crankcase oil to lubricate the piston - longer service life (~8-15,000 hours), lower noise, but oil carries over to the air stream and needs filtration before paint guns or food-grade air. Oil-less (Peerless PO13/PO25/PO37) use PTFE / sealed-bearing piston rings - cleaner air, no oil carry-over, suits dental, medical, food-grade and sensitive-finish paint. Trade-off: shorter service life (~3-5,000 hours).

  • Single-phase or three-phase?

    Single-phase 230V 10-amp runs up to ~3 HP. Single-phase 15-amp runs up to ~5.5 HP (Peerless Fatboy). Three-phase 415V is the commercial standard for 7.5 HP+ - more efficient, smoother motor torque, longer motor service life. Peerless Fatboy single-phase bridges the gap where the contractor needs commercial compressor performance without three-phase install. Check the building circuit before quoting three-phase.

  • Which compressor oil?

    Valvoline ValComp ISO 46 for general workshop compressors in normal AU temperature. ISO 68 for higher-temperature operation. Synthetic 68 for extended service intervals on commercial-duty units. Match the oil spec to the compressor manual; using the wrong viscosity can shorten compressor life. Change at the interval specified by the compressor maker (typically 500-1,000 hours on mineral, 2,000-4,000 hours on synthetic).

  • What tank size do I need?

    Workshop: 60-150 L for occasional tool use. Production: 200-500 L for paint spraying or continuous tools. Industrial: 500-2,000 L for plant air supply with a screw compressor. Bigger tank = less motor cycling = longer motor + crankshaft life. Bigger tank also means longer reserve when the motor is off - useful for short-burst applications between long no-air periods.

Full guide

Air Compressors

133 air compressors from Peerless, Atlas Copco and Valvoline-matched compressor oil. Workshop piston compressors, commercial high-flow Fatboy single-phase, oil-less PO13 / PO25 / PO37 ranges and three-phase commercial spec. The full range from light workshop intermittent use through to commercial continuous-duty.

Piston vs screw - the duty cycle rule. Piston (reciprocating) compressors run a cylinder + piston cycle, compressing air on each downstroke. Simple mechanical design, low capex, suits intermittent air supply up to ~10 HP - tyre inflation, air tools, paint spraying at workshop scale. Rated for 50-70 percent duty cycle (compressor running ~half the shift). Screw (rotary screw) compressors run continuous helical screws inside an oil-flooded element - 100 percent duty cycle, much longer service life, lower noise. Industrial / commercial spec above 10 HP.

Oil-flooded vs oil-less. Oil-flooded piston compressors (most Peerless workshop range) use oil in the crankcase to lubricate the piston and rings - longer service life, lower noise, but oil carry-over to the air stream means the air needs filtration before going to paint guns or food-grade applications. Oil-less compressors (Peerless PO13 / PO25 / PO37 range) use PTFE / sealed-bearing piston rings that need no oil - cleaner air output, no oil-carry-over, suit dental, medical, food-grade or sensitive-finish painting work. Trade-off: shorter service life (~3-5,000 hours) vs oil-flooded (~8-15,000 hours).

Single-phase vs three-phase. Single-phase 230V 10-amp circuits run compressors up to ~3 HP. Single-phase 15-amp circuits run up to ~5.5 HP (Peerless Fatboy). Three-phase 415V is the commercial standard for 7.5 HP + - more efficient, smoother torque on the motor, longer motor service life. The Peerless Fatboy single-phase range bridges the gap where the contractor needs commercial compressor performance without a three-phase install.

Compressor oil. Valvoline ValComp Compressor Oil ISO 46 + ISO 68 + Synthetic 68 cover the standard compressor oil weight range. ISO 46 for general workshop compressors in normal AU temperature; ISO 68 for higher-temperature operation; Synthetic for extended service intervals on commercial-duty units. Match the oil spec to the compressor manual; using the wrong viscosity can shorten compressor life.

Tank size + air storage. Tank capacity (litres) buffers the air supply between cuts of the compressor motor - bigger tank = less motor cycling = longer motor + crankshaft life. Workshop: 60-150 L tank for occasional tool use. Production: 200-500 L tank for paint spraying, continuous tools. Industrial: 500-2,000 L tank for plant air supply with screw compressor. Bigger tank also means longer reserve when the motor is off.

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