NorthStar 20 Gallon Air Compressor – GX390 Review
NorthStar 20 Gallon Air Compressor
In this article, we will share NorthStar 20 Gallon Air Compressor GX390 Review in detail. This NorthStar 20 Gallon air compressor is a heavy-duty horizontal air compressor. NorthStar GX390 is powered by a quality Honda gasoline engine with 3 Amp charging system.
NorthStar GX390 is a full cast belt-driven iron two-stage air compressor. Its V-type pump features cylinder design for Low Vibration Technology (LVT), superior cooling for smooth operation and floating-type Swedish steel valves for long valve life. Its crankshaft has bearings on both ends for excellent support and smooth running.
NorthStar GX390 has a liquid-filled pressure gauge for better accuracy and protection against pressure spikes. It also has a durable steel belt guard which makes it standalone from other same range compressors.
NorthStar GX390 20 Gallon Key Specs
Brand | NorthStar |
Manufacturer’s Warranty | 4 Yr Consumer/2 Yr Commercial |
Ship Weight | 492.0 lbs |
Horsepower | 12 HP |
Air Tank Size | 20 Gal |
Engine Brand | Honda |
Engine Displacement | 390 cc |
CFM at 90 PSI | 24.4 |
Max. PSI | 175 |
CFM at 40 PSI | 26.8 |
Engine Start Type | Electric w/recoil backup |
Stage | 2 |
NorthStar 20 Gallon Air Compressor Additional Specs
Drive Style | Belt |
Duty Cycle | 100 % |
Air Outlet Size | 3/4 in. NPT |
Fuel Capacity | 1.6 Gal |
Pump Material | Cast Iron |
Oil Required | Yes |
Low Oil Shutdown | Yes |
Low Oil Protection | Yes |
Drain Type | Manual |
After Cooler Included | Yes |
Tank Orientation | Horizontal |
Dimensions L x W x H (in.) | 41 x 19 x 40 |
NorthStar Air Compressor 20 Gallon
Features & Benefits
- Honda GX160 OHV engine with low oil shutdown
- Full cast iron pump for long service life
- Delivers 13.7 CFM @ 90 PSI
- 130 max. PSI
- V-style cylinder design for superior cooling
- Pump head made of FC35 Grade cast iron
- Floating-type Swedish steel valves deliver much longer valve life
- Operates at slower RPM to run cooler and last longer
- Low Vibration Technology (LVT) features a dynamically balanced pump for smooth operation and long life
- One-piece cast iron crankcase has bearings on both ends of crankshaft for superior crankshaft support, not overhung crankshaft design
- 100% duty cycle
- Durable steel belt guard
- Liquid-filled pressure gauge
- Oversized flywheel for cooler operation
- Heavy cast iron flywheel provides extra momentum
- Step-type piston rings ensure piston ring overlap for better compression
- Sight glass for quick viewing of oil level
- Replaceable crank journals and wrist pin journal/needle bearings
- Two-piece connecting rods can be rebuilt for superior serviceability
- High pressure piston wrist pins have needle bearings
- Easy start lever on unloader valve isolates pump from tank pressure, so engine won’t have to start under load
- Pressure regulator to control outlet pressure
- 20-gallon ASME-certified horizontal tank
- Built-in wheels with handle for easy portability
Best NorthStar Air Compressors
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NorthStar GX390 20-Gallon |
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NorthStar 2-HP 20-Gallon | Gallon: 20 HP: 2 Style: Portable – Vertical Engine: Honda GX Fuel Type: Gasoline Jump to details ⮟ |
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NorthStar 8-Gallon Kohler CH395 OHV Engine |
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NorthStar GX390 20 Gallon Air Compressor Conclusion:
In this article, we tried to cover NorthStar 20 Gallon Air Compressor GX390 Review in detail. It’s a heavy-duty 20-gallon horizontal air compressor. NorthStar GX390 is powered by a quality Honda gasoline engine with 3 Amp charging system.
The unit is particularly heavy (492 lbs) and is expensive (typically ~$1,000-2,000).
But at the same time, its biggest benefit is high CFM PSI. It operates with a maximum 175 PSI pressure; it boasts an output of 18.7 CFM at 175 PSI, as well as 24.4 CFM at 90 PSI.
In short, if you have budget, this air compressor is a must have for all of your garage and other heavy-duty requirements.
I am working in the air compressor industry for the last 14 years. Air compressors are not only my bread and butter, but also my passion. I love to try new tools and air compressors as much as I can, and want to share all my knowledge with my audience.