4 HP Air Compressors – Compact Power That Gets the Job Done
If you're looking for a solid, no-nonsense air compressor for small-to-mid scale jobs, 4 HP air compressors deliver more than enough punch without taking up too much space — or power. These are ideal for body shops, auto service bays, woodshops, and contractors who want something powerful enough to handle air tools and spray equipment, but not overkill for the job.
At Penry Air, we stock 4 HP compressors that strike the right balance: reliable airflow, compact design, and lower energy draw — all from brands we trust.
Why Choose a 4 HP Air Compressor?
4 HP compressors are a great fit for shops that:
- Need 10–18 CFM at 90–125 PSI
- Want a cost-effective, energy-friendly solution
- Have limited space or single-phase power available
- Run tools like nailers, paint guns, tire inflators, ratchets, or sanders — but not all at once
They’re perfect for light industrial or high-end hobbyist setups, and often used as backup compressors in larger shops, too.
What to Look for in a 4 HP Compressor
Before buying, here’s what buyers typically want to know — and what Penry Air delivers:
- Motor Type: Single-phase or three-phase options available
- Tank Size: Most come in 30 to 80 gallon vertical or horizontal tanks
- Compressor Type: Rotary screw or piston (reciprocating)
- Duty Cycle: Look for 100% duty in rotary screw models if you’re using air continuously
- Noise Level: Quiet models available — ideal for indoor or garage installs
Not sure if you need a screw or piston unit? We’ll help you decide based on how you work.
Ideal Applications for 4 HP Compressors
These compressors work best in:
- Auto service garages (light air tool use)
- Spray booths or small-scale finishing
- Home or professional woodworking shops
- Mobile service setups or truck-mounts
- Light assembly or packaging lines
They’re compact, portable (in many cases), and easy to install — without needing industrial-level power or wiring.
