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FS-Curtis Rotary Screw Air Compressors

Picture of FS Curtis NX Series Air Compressor


(4-185 kw)

The Nx Series is our latest and most technologically advanced generation of rotary screw air compressors. Compact in design, robust in power, the Nx’s smooth, quiet operation is ideal for a wide variety of applications ranging from auto body shops to industrial.


dBA Shield Noise Reduction

Intgration of centrifugal blower and drive motors make for extremely smooth and quiet operation.
•Extra-thick sound insulation reduces noise
•Can be installed in applications where a quiet setting is important.

eCOOL® Technology

Protects critical components from compressor-generated heat
•Extends component life and reduces downtime
•Compartmentalized air flow design and standard aftercooler

Quality Components

Standard TEFC motor protectts compressor from surrounding dirty air, increasing the effeciency and prolonging the life of the motor

•Spin-on air/oil separator allows for quick maintenance and results in 1-3 ppm oil carryover.  This translates into lower maek-oup oil costs and higher quality compressor air.  This translates into lower make-up oil costs and higher quality compressed air.

Superior Package Design

Space-saving design
•Pulsation-free air
•100% Continuous duty
•Extended service intervals
•More CFM per horsepower
•Improved air quality
•Energy efficiency at full load
delivers more air for the money
•Intgrated into a smaller footprint
•Exclusive FS-Curtis airends utilize the latest rotor profile to maximize efficiency.

Picture of FS Curtis NXHE Series Air Compressor


(90-260 kw Two-Stage)

Compared to single stage compressors, a two-stage is much closer to isothermal compression. This is achieved by injection of fresh oil between the stages which reduces the inlet temperature to the second stage. This lower inlet temperature increases efficiency by reducing the compression ratio between the stages. In addition, leakage between the rotor seals is significantly reduced resulting in outstanding volumetric efficiency.


Two-stage air compressors are closer to the ideal isothermal compression

• Reduced leakage increases volumetric efficiency
• Saves 10-15% of energy compared to single stage compressors
• Increases flow 10-15% compared to single stage compressors
• Lower pressure differential increases efficiency and reliability
• Low heat load
• Easy maintenance and service
• Lowest life-cycle cost of any compressor on the market

eCOOL® Technology

• Protects critical components from compressor-generated heat
• Compartmentalized air flow design and oversized aftercooler
• Extends component life and reduces downtime

Energy-efficient Two-stage Airend

• Patented airend design integrates the first and second stage rotors into one airend
• Oil is injected between the first and second stages to cool the air and optimize efficiency
• Splitting the compression cycle into Two-stages reduces the axial and thrust loading to which improves service life of airend and bearings
• Two-stage compression significantly reduces noise

Effectively integrated overall design

• Safe, efficient air filter system
• Independent bearing lubrication
• High efficiency, easy-to-maintain oil separator
• IE3 high efficiency motor
• End face sealed to prevent leakage
• Connections utilize o-ring face seals for leak--free performance
• Asbestos-free gaskets protect operator health

Picture of FS Curtis RS Series Air Compressor


(15-300 kw)

Performing dependably in thousands of locations worldwide, RS-Series compressors combine efficient operation with outstanding durability in the most demanding environments.


•Low power consumption
•Optimal component selectrion for maximum performance in the toughest applications
•Smart control options for power savings in all conditions
•Highly efficient air ends with EPACT efficiency motors for low power consumption

Low Cost Service
•Easy and open access to service points
•Standard and long life components require minimum service
•Rugged and leak free design for reduced maintenance costs
•Precision engineered component sizing for maximum performance
•High efficiency filtration and separation for maximum flow and durability
•Large and slow speed air end for high performance and extended service life

Additional Features

•Heavy duty intake filter
•High efficiency air end
•Low loss drive system
•EPACT efficiency electric motor
•On-line/Off-line with modulation
•Timed dual control
•Multi-stage oil separation system
•Heavy duty oil filter with by-pass
•Oil level sight glass