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Air Compressor

HankeMotor is a Melbourne-based supplier with a decade of history in air compressors and electric drive equipment. We supply piston and rotary screw compressors to trades, workshops and fabrication shops, with a 1-year warranty on all units. Our compressors are configured for Australian power standards (240V single phase / 415V three phase) and AS1210-compliant tanks. Local stock and pickup available from our Glen Waverley warehouse for urgent needs.

Different Types of Air Compressor We Offer

Rotary screw compressor

Designed for stable airflow, lower noise, and 100% continuous duty cycle. Ideal for working environments with continuous air demand, multiple tool requirements, spraying and painting, and light manufacturing.

Piston compressor

Easy to maintain and budget-friendly, suited to intermittent use — home garages, small tyre shops, and general trade air tools. Most models are oil-lubricated (standard for piston pumps); select oil-free models are also available where a cleaner air supply or indoor use matters.

Key Points When Buying an Air Compressor

  • Purpose and usage — intermittent trade use vs continuous production
  • Airflow (CFM/FAD) and pressure requirements
  • Power source — single phase 240V or three phase 415V
  • Tank size and duty cycle
  • Noise level

Why Choose HankeMotor's Air Compressors?

Durable build

Tanks are built to AS1210 (Australian pressure vessel standard), with heavy-duty cast iron pump construction on our belt-driven models.

Right-sized pump options

From compact 6.8 CFM single-phase units to 495 CFM industrial screw compressors — see the CFM sizing guide below to match a pump to your actual tool demand, not just motor kW.

Local support

Glen Waverley warehouse stock, phone and email support for sizing questions, and replacement pump heads if your existing unit needs a rebuild instead of a full replacement.

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HankeMotor stocks single phase 240V piston (reciprocating) air compressors for Australian workshops, farms, panel shops, and trade use. All units are dispatched from our Glen Waverley, Victoria warehouse with same-day or next-day shipping. The piston range covers complete compressor units and replacement pump heads — the two most common purchase scenarios we see from Australian customers.

CFM Demand by Tool Type: Size Before You Buy

The single most common mistake when buying a compressor is sizing by motor kW instead of by free-air delivery (FAD) in CFM. Your compressor's FAD must exceed the combined demand of every tool running at the same time. A 2.2kW motor is meaningless if the pump produces less air than your spray gun needs.

Tyre inflator / blow gun
1–2 CFM · 24L+ tank
Any compressor suits
Brad nailer / stapler
0.5–1 CFM · 6L+ tank
Very low demand — burst use only
Impact wrench (1/2")
4–5 CFM · 50L+ tank
Intermittent bursts; 50L handles most jobs
Die grinder
4–6 CFM · 50L+ tank
Sustained draw; pump must keep up
HVLP spray gun (single)
6–14 CFM · 100L+ tank
Continuous demand; most demanding single tool
Air chisel / nibbler
3–4 CFM · 50L+ tank
Intermittent; 50L suits most bodywork use
Sandblasting (light cabinet)
8–15 CFM · 100–150L+ tank
Sustained high draw; single phase 240V may limit FAD
Production sandblasting
50–100+ CFM · 300L+ tank
Requires three-phase supply and rotary screw compressor

Add the CFM of all tools running simultaneously, then add 25% margin to account for hose friction, fittings, and duty cycle reserve. If your total is above 16 CFM, you have reached the practical limit of single phase 240V power — see the three-phase rotary screw range for higher FAD requirements.

Tank Size, Duty Cycle, and What 50% Means in Practice

Piston compressors must not run continuously — the pump generates heat under load and requires rest periods. The industry standard for piston compressors is a maximum 50–75% duty cycle: run no more than 30–45 minutes in every hour under sustained load. Tank size determines how long you can use tools before the pump cycles back on. A larger tank also means fewer pump start-stop cycles per hour, extending pump life significantly:

50–75L
Single tool, intermittent use
Pumps frequently (every 1–2 min during use)
Right for: impact tools, tyre work, brad nailing
100–150L
Workshop, 1–2 tools simultaneously
Moderate cycling; pump keeps up with sustained use
Right for: spray painting, body panel work, general trade
200–300L
Busy workshop, light production
Long draw-down before pump cycles; better pump life
Right for: multiple tools, sandblasting cabinet, farm use
500L
Large workshop; used with higher-kW pump
Minimal cycling; large reserve for burst demand
Right for: production spray, sustained multi-tool use

HankeMotor stocks 300L and 500L vertical air receivers as standalone tanks that can be added to any compressor installation to extend reserve capacity and reduce pump cycling. If your existing compressor pumps too frequently, adding a second tank in parallel is a low-cost fix before replacing the whole unit.

Single Phase 240V vs Three Phase 415V: The Practical Ceiling

Single phase 240V power limits the practical FAD ceiling to approximately 16–18 CFM for Australian workshop supply. Above this point, the motor draw requires three-phase 415V supply and the correct circuit protection. If your site has single-phase supply only and you need more than 16 CFM continuous air, there is no practical single-phase solution — a phase converter or supply upgrade is required.

Single Phase 240V
Suits workshops with standard power supply
Compressors up to approximately 2.2–3kW motor
Plug-in or hardwired
Up to ~12–15 CFM FAD
Three Phase 415V
Required for compressors 3kW+ and for rotary screw units
Needs licensed electrician to connect
Higher FAD for production or sustained multi-tool use

If your workshop is on single-phase only and needs more than 15 CFM, the correct solution is two separate single-phase compressors with separate circuits running in parallel into a shared manifold — not an oversized single-phase unit. Call 0401 634 280 to discuss your specific requirement.

Replacement Pump Heads: Matching Shaft and Port Sizes

A common purchase is a replacement pump head for an existing tank and motor. Two compatibility checks are non-negotiable before ordering:

Motor shaft diameter: the pump drive pulley must match the motor shaft. Common shaft sizes: 19mm (1.5–2.2kW motors), 24mm (2.2–3kW compressor-duty motors). Mismatched shafts require a different pulley or adapter — this is the most common compatibility error.
Port thread and size: the pump outlet port must match your manifold or pressure switch thread. Australian piston compressors typically use BSP (British Standard Pipe) threads, not NPT (American). Check the existing pump port before ordering a direct replacement.

HankeMotor's air compressor pump range includes 12 CFM (2.2kW suit) and 15 CFM (3kW/4HP suit) heads in stock at Glen Waverley.

When a Piston Compressor Is the Wrong Choice

Do not buy a piston compressor if:
Your compressor needs to run more than 45 minutes per hour — a piston unit will overheat and fail prematurely. You need a rotary screw.
Your application is a spray booth with multiple spray guns running simultaneously — the FAD requirement will exceed single-phase limits and 100% duty cycle is essential.
Noise is critical — piston compressors are 80–90 dB in operation. Rotary screw units run at 60–75 dB and are common in office-adjacent workshops and showrooms.
Your site is on three-phase power and your budget allows it — a rotary screw is almost always a better long-term investment for three-phase sites.

See HankeMotor's rotary screw air compressor range for 100% duty cycle industrial options.

What PSI does a workshop need?

Most workshop air tools require 90 PSI (6.2 bar) at the tool. Compressor tank pressure is set higher — typically 120–135 PSI (8.3–9.3 bar) — to allow the pressure to drop during use while staying above tool minimum. For sandblasting requiring 100 PSI at the nozzle, set the compressor regulator to 120 PSI minimum. For spray painting, most HVLP guns operate at 25–30 PSI at the gun after the regulator.

How do I know if my existing compressor pump needs replacing?

Three clear indicators: (1) the pump runs continuously but tank pressure never reaches the cut-off pressure (typically 120–135 PSI), indicating worn rings or valves; (2) excessive oil blowby — oil mist visible at the outlet or contaminating tools; (3) the pump runs hot enough to trip thermal protection within minutes of starting. On a pump older than 5 years in daily use, a replacement pump head is almost always cheaper than rebuilding.

Can I use an air compressor for spray painting a car?

Yes, but the compressor must deliver enough sustained CFM to keep up with the spray gun. A single HVLP spray gun draws 6–12 CFM at 25–30 PSI gun pressure. A 50L tank compressor at 8 CFM FAD cannot sustain this — you will run dry mid-panel. For single-stage car painting, minimum 10–12 CFM FAD with at least 100L tank. For a full professional spray booth, 20+ CFM from a rotary screw is the industry standard.

For help matching the right compressor to your application: 0401 634 280 or hankemotors@gmail.com
Unit 1, 28 Aristoc Road, Glen Waverley VIC 3150

Related: Rotary Screw Air Compressors | Air Compressor Pump Heads | Refrigerated Air Dryers | Single Phase Motors 240V

Air Compressor FAQ

Can I replace the pump on my HankeMotor air compressor?
Yes, we also sell replacement air compressor pumps that fit most tanks. Make sure you check compatibility based on mounting type, RPM, and airflow needs before you purchase.
What’s the difference between single-stage and two-stage air compressors?
  • Single-stage: Compresses air once, suitable for tools needing up to 125 PSI.
  • Two-stage: Compresses air in two steps, reaches up to 175 PSI, ideal for heavy-duty and continuous use.
What maintenance is required?
Check oil levels, clean the air filter, drain condensation from the tank, and inspect belts regularly. If you would like further support, please feel free to contact our support team.