industrial centrifugal air compressors
极光® P300 AC
The Polaris P300 AC is an air-cooled centrifugal compressor designed to deliver reliable, energy-efficient, ISO 8573-1 Class 0 oil-free air without the need for cooling water. Featuring a compact, plug-and-play design, the P300 AC simplifies installation while providing dependable performance for facilities where water availability or infrastructure limitations make air cooling the preferred solution.
Engineered for efficiency and simplified maintenance, the P300 AC combines optimized cooling, intuitive controls, and comprehensive lifecycle support to help facilities maintain productivity while managing operating costs.
Performance Specifications
Match the P300 AC to your operating requirements, then configure the package around your site and process.
FLOW
900 – 2,200
CFM
PRESSURE
40 – 150
PSIG
POWER
250 – 450
HP
AIR QUALITY
ISO 8573-1 CLASS 0
WEIGHT
22,000 lb
DIMENSIONS (L × W × H)
180 x 87 x 88 in
FLOW
25 – 60
m3/min
PRESSURE
2.75 – 10.5
barg
POWER
185 – 335
kW
AIR QUALITY
ISO 8573-1 CLASS 0
WEIGHT
10,000 kg
DIMENSIONS (L × W × H)
4572 x 2238 x 2202 mm
Specifications vary by configuration.
Features & Benefits
The P300 AC’s oil-free design helps protect critical processes and finished products from compressor oil contamination, while advanced cooling technology and integrated monitoring capabilities support consistent performance, operational efficiency, and long-term reliability.
Confidence for Critical Air Demands
The P300 AC combines proven Polaris centrifugal compressor technology with a robust design engineered for continuous industrial operation. Its ISO 8573-1 Class 0 oil-free air delivery helps protect sensitive processes, while a standard sound enclosure and reliable components support consistent performance in demanding environments.
Optimized Design, Efficient Operation
Top-mounted, high-efficiency air-to-air intercoolers with VFD-controlled fans optimize cooling performance while minimizing pressure drop. This advanced air-cooled design adjusts cooling to operating demands, helping reduce unnecessary energy consumption. Optional zero-loss condensate drains further support efficiency by minimizing compressed air waste.
Designed with Service Access in Mind
A horizontally split gear case and removable airend simplify maintenance without disconnecting air piping, while split bearings and seals allow servicing without rotor removal. The plug-and-play package, accessible internal components, and intuitive touchscreen HMI help streamline installation, daily operation, and routine maintenance.
Optimize Compressor Performance
Long-Term Support You Can Count On
FS-Elliott supports customers throughout the life of their centrifugal compressor with a standard two-year bumper-to-bumper warranty. For added protection, our optional SteadiAIR® extended warranty provides three additional years of airend coverage, extending protection to a total of five years. Our factory-trained channel partners and global service network provide expert maintenance, technical assistance, and ongoing support.
Our Rapid Response Storage Center helps minimize downtime by providing quick access to replacement airends when needed, while FS-Connect offers remote monitoring capabilities for greater visibility into compressor operation and performance.
From installation and commissioning to preventive maintenance, OEM replacement parts, and long-term technical support, FS-Elliott delivers comprehensive lifecycle services to help maintain compressor reliability, efficiency, and performance for years to come.
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Explore Key Components of the Polaris P300 AC
AXIAL PROBE
Senses shaft end position and/or thrust collar position and notifies operator via the control panel should the rotor assembly move beyond the alarm or trip set points.
CONDENSATE DRAIN
Provides a regulated discharge of condensate and eliminates the loss of compressed air.
CONTROL SYSTEMS
Featuring the most powerful processors in the industry, the Regulus line offers unprecedented compressor control, providing reliable, efficient operations and substantial energy savings.
CONTROL VALVE
Production areas use air operated valves and cylinders.
DRAIN VALVE
Only discharges condensate when the reservoir is full, eliminating water without losing air.
DUAL OIL FILTERS
FS-CONNECT
FS-Connect has been designed to give you visibility of the operational status and performance of your FS-Elliott air compressor.
FSE-TURBOCOOL
Lubricants and additives designed to minimize harmful buildup and maximize equipment operating cycles.
Proven Across Critical Industries
Insights & Resources

Automotive Component Manufacturer Saves Over $100K Annually with Centrifugal Compression
An automotive component manufacturer improved production reliability and met growing compressed air demand by transitioning from rotary screw compressors to centrifugal compression, achieving over $100,000 in annual energy and maintenance savings.

Why Manufacturers Are Switching to Oil-Free Compressed Air
Compressed air is often called the fourth utility, but in many manufacturing environments, it also plays a direct role in product quality, operational efficiency, and regulatory compliance. That makes air quality more important than many facilities realize.