UNIMAC 115PSI 150L 18HP Industrial Petrol Powered Air Compressor with Electric Key Start
For tradies, builders, or workshop pros seeking dependable performance far from a power point, the Unimac 115psi Air Compressor delivers robust air supply and lasting engineering. With a vast 150-litre tank, advanced triple piston setup, and both key and recoil start, this workhorse is built for hard Australian conditions where only real industrial-grade gear will do.
Quick Facts
- 18HP 4-stroke petrol engine for on-site power
- 150L tank with 115PSI working pressure
- 1180L/min (42CFM) free air delivery for high-demand tools
- Tri-V triple piston, Uni-GlideTM coated sleeves for smoother operation
- Cast iron construction resists tough use
- Electric key start + manual recoil backup
- Large 6.5L fuel tank for long jobs
- Automatic cut-out switch for safety
- Renowned Unimac quality – proven performance in Australian industry
- Merchant supports local spare parts and service queries
- Check reviews and installation guides for user peace of mind
Best For & Not Ideal For
Best For
- Tradies, construction crews, and mechanical workshops needing mobile, high-volume compressed air
- Sites where mains power is unavailable or unreliable
- Running several pneumatic tools at once for spray painting, sandblasting, or tyre work
- Prolonged operation in dusty or rugged outdoor settings
Not Ideal For
- Light home users or those only inflating tyres and balls
- Enclosed spaces where petrol fumes are an issue
- Noise-controlled environments or users needing a silent compressor
- Anyone without easy tank draining or assembly access
What Makes the Unimac 115PSI 18HP Petrol Compressor Stand Out?
This model has been designed for pure performance where electricity can’t reach. The hefty 18HP petrol motor, triple piston assembly, and vast 150L receiver ensure strong, steady output even when driving air tools back-to-back. The automatic cut-out and robust construction mean fewer breakdowns, while dual starting options guarantee a reliable spark every time.
- Engineered for the outback: Heavy-duty cast iron and smart piston sleeves fight dust, moisture, and physical knocks.
- Flexible starting: Key ignition is fast for daily use, with recoil backup ready if batteries fail.
- Consistent performance: Large tank and rapid air delivery support intensive jobs without pressure dips.
- Major time-saver: Enjoy long site sessions without constant re-fuelling or waiting on sluggish compressors.
Practical Info: Usage, Maintenance & Key Considerations
- Size & transport: This is a substantial unit—plan moving and placement according to your available space and loading equipment.
- Drain tank after each use: Not draining can prevent restart and encourage internal corrosion. Make the task a routine part of your end-of-day pack-up.
- Petrol & care: Use quality unleaded; check oil levels and air filter regularly for engine longevity.
- Commissioning steps: On first use, carefully check and adjust all fittings and valves—full instructions are on the merchant product page.
- Noise & emissions: Standard for industrial petrol compressors: best used in ventilated, outdoor sites only.
If you may need spare parts support, Unimac is a known name locally. Keep a regular maintenance schedule to ensure long life and safe operation under Australian site demands.
UNIMAC 115PSI 150L 18HP Industrial Petrol Powered Air Compressor with Electric Key Start
Check the current merchant listing for full product details, compatibility notes, dimensions, included items, and product-specific guidance before you buy.
Check Before You Commit
- Review the full listing for dimensions and compatibility with your tools
- Ensure you can safely commission the unit—some basic assembly or plumbing may be required
- Read the merchant’s startup and draining advice to avoid operational headaches
- Assess your worksite’s rules on petrol engines – indoor or noise-restricted environments may need a different solution
If you’re looking for a no-nonsense compressor trusted by working Aussies and backed by focused, local support, this model checks every box for tough-use settings.
What You Get – Assembly & Accessories
This compressor typically includes all core components for initial commissioning. However, check with the merchant to verify included hoses, filters, and installation hardware for your application. Some tools, couplers or reducers may need to be purchased separately depending on your particular needs.
Refer to site-specific guides for first-time assembly. And as always, powering-up any large compressor should be done according to Australian safety standards and workplace guidelines.
UNIMAC 115PSI 150L 18HP Industrial Petrol Powered Air Compressor with Electric Key Start
Check the current merchant listing for full product details, compatibility notes, dimensions, included items, and product-specific guidance before you buy.
FAQs – Unimac 115PSI Air Compressor
Yes, with its 1180L/min air delivery and 150L tank, it’s ideal for running multiple pneumatic tools in industrial or automotive settings. Ensure your total tool demand matches the output spec.
Absolutely – the dual start system allows both electric key and manual recoil starts, ensuring you aren’t left stranded on site.
Routine tasks include draining the tank after every use, monitoring petrol and oil, cleaning the air filter, and checking for leaks. Merchant and manufacturer guides have step-by-step care instructions.
Some assembly is likely – at minimum, ensure all valves and fittings are adjusted and tight according to the supplied instructions.
As a petrol-driven industrial unit, expect normal compressor noise and exhaust – ideal for open or remote sites, rather than residential areas or workshops with tight noise curfews.
Final Thoughts – Is This the Compressor for Your Work?
The Unimac 115psi Air Compressor is a stand-out companion for serious professionals who refuse half-measures. Its boost in tank capacity, proven triple piston assembly, and rugged petrol engine are engineered for round-the-clock reliability across construction, farming, and automotive environments. Just make sure your worksite matches its capabilities – and check all handover, assembly and safety notes via the Edisons listing before purchase.







