Features & Benefits
Oil-free:
- 100% oil-free per ISO 8573-1 certification
- Prevents system contamination
- No costly waste disposal associated with oil-laden condensate
- Eliminates the expense and maintenance of oil separation filters at the discharge.
Efficient Design: Highly efficient aerodynamic components combine with low mechanical losses and power conserving IGV to provide up to 5% better specific power than competitive models.
Robust Reliability: Industry-leading reliable design with time-tested split pinion bearings, AGMA 13 gearing, a robust thrust management system and stainless steel compression elements.
Intuitive Control: MAESTRO controllers include a web server and USB port, can monitor and control multiple units, and will integrate with on-site host systems to optimize performance.
Operational Flexibility: With a turndown range that typically exceeds 30%, MSG® compressors can be used in a wider variety of demand scenarios without the need to unload or shut down during periods of low compressed air demand. The standard inlet guide vane
Less Downtime: Our compressors are designed to simplify installation and maintenance with a horizontally split gearbox and cleanable in-place cooler bundles.
Low Total Cost of Ownership: The energy required to power a compressed air system is the largest cost associated with a compressor. That is why it is important to consider the total life-cycle cost of operating the compressor, including the initial investment, energy consumption and maintenance costs.
Low Compressor Operating Lifecycle Cost:
- Excellent efficiencies at full load, part load and no load
- Low maintenance cost
- Increased uptime from high-reliability design
- No sliding or rubbing parts in the compression process that can cause wear and efficiency loss
Ease of Operation & Maintenance
MSG® compressors are user-friendly and designed for simplicity:
- Durable Compression Elements: No periodic replacement needed
- Accessible Design: Horizontally split gearbox for quick inspections
- Easy Cleaning: Removable intercooler and aftercooler bundles
Simple Installation
Installation is streamlined for efficiency and convenience:
- Integrated Design: Compressor, lubrication system, intercoolers, coupling, piping, etc., all can be mounted on a common base
- No Special Foundations Needed: Simplified setup process
- Compact Layout: Reduced floor space requirements
- Flexible Connection Points: Adaptable to site-specific needs
- Pulsation-Free Operation: Dynamic compression eliminates the need for dampening equipment
Advanced Design
MSG® centrifugal compressors are engineered for excellence:
- Configurations include one, two, or three rotors with up to six stages per gearbox
- Horizontally Split Gearbox for Easy Maintenance
- Custom gearing for Optimum Speed and Efficiency
- Tilting Pad Pinion Bearings for High Reliability
- Standard Thrust Collars on the Pinion Shaft
- Seal Options Ingersoll Rand offers a complete range of seal arrangements to meet the specific needs of your application:
- Standard Labyrinth-style
- Babbitted-style
- Carbon Ring
- Single, Tandem, or DoubleDry-face
- Gas Flow Arrangement: MSG® TURBO-AIR centrifugal compressors are designed with an innovative arrangement of gas flow components.
- Customized PLC-Based Controls: PLC-based systems offer advanced control for packages with high input/output (I/O) counts, multiple gas circuit control loops, or multi-process applications. Ingersoll Rand can design, program, and supply PLC systems from all major suppliers, fully integrated and wired to your compressor package.
Air Flow Diagram
01: Compressor inlet
02: First-stage compressor volute
03: Coolant in
04: Coolant out
05: First-stage intercooler
06: Second-stage compressor volute
07: Second-stage intercooler
08: Third-stage compressor volute
09: Compressor discharge

Cross-sectional View of a Typical Three-rotor Process Gas Compressor
- One, two or three rotors, up to six stages per gearbox
- Horizontal splitline(s) for easy access to parts
- Engineered seal designs
- NACE-compliant scrolls and inlets can be manufactured from steel or stainless steel according to project requirements

Standards Compliance
- ISO 8573-1 Class 0
- American Petroleum Institute (API)
- ISO 9001:2008
- ISO 14001:2004
Specifications
Model | Standard Input Power | Discharge Pressure | Inlet Flow |
|---|---|---|---|
MSG® 2/3 Centrifugal Air & Gas Compressor | Up to 4,100 kW (5,500 hp) | Up to 100 barg (1450 psig) | 4,200 to 17,000 m3/h (2,500 to 10,000 CFM) |
MSG® 4/5 Centrifugal Air & Gas Compressor | Up to 4,850 kW (6,500 hp) | Up to 100 barg (1450 psig) | 12,000 to 30,000 m3/h (7,000 to 17,700 CFM) |
MSG® 8/9 Centrifugal Air & Gas Compressor | Up to 7,640 kW (10,000 hp) | Up to 100 barg (1450 psig) | 28,000 to 60,000 m3/h (16,500 to 35,500 CFM) |
MSG® 12/14/16 Centrifugal Air & Gas Compressor | Up to 11,185 kW (15,000 hp) | Up to 100 barg (1450 psig) | 51,000 to 100,000 m3/h (30,000 to 59,000 CFM) |
MSG® 18 Centrifugal Air & Gas Compressor | Up to 14,900 kW (20,000 hp) | Up to 41 barg (600 psig) | 77,000 to 135,000 m3/min (45,250 to 80,000 CFM) |
MSG® 25 Centrifugal Air & Gas Compressor | Up to 16,400 kW (22,000 hp) | Up to 41 barg (600 psig) | 85,000 to 230,000 m3/h (50,000 to 135,000 CFM) |
Engineered To-Order Solutions
We are capable of understanding client specific needs and requirements, allowing us to be with you through every step of your project. We can quickly design the most effective customized solution, giving you total peace of mind.
With our main manufacturing facilities in Wujiang (China), Buffalo (US), and Vignate (Italy), plussales and service locations worldwide, Ingersoll Rand is a global company with a commitment to meeting your needs with exceptional centrifugal compressor technology while exceeding your expectations with unequaled service & support.
Process Combinations
MSG® centrifugal compressors can be fully customized to meet your specific multi-process needs. Some examples of applications, mainly in the air separation industry, where MSG® compressors have been effectively utilized for multiple processes:
- Main Air Compressor / Booster Air Compressor (MAC/BAC)
- Main Air Compressor / Nitrogen Product Compressor (MAC/GAN)
- Main Air Compressor / Nitrogen Recycle Compressor (MAC/NRC)
- Nitrogen Recycle Compressor / Nitrogen Feed Compressor
- And many others
MSG® Performance Ranges

Industries & Applications
Ingersoll Rand’s MSG® Centrifugal Compressors are proven in a number of different industries:
- Air Separation
- Power Generation
- Carbon Capture
- Chemical & Petrochemical
- Oil & Gas
- Liquefied Natural Gas (LNG)
- Biogas
- Hydrogen
- General Manufacturing
We offer a broad portfolio of reliable centrifugal products that will adapt to your application. Ingersoll Rand MSG® Centrifugal Compressors can produce compressed air for the most demanding requirements. Here are some of the common applications:
MSG® Centrifugal Air Compressors Applications
- Industrial gases (main air compressors and boosters)
- Process air
- Instrument air
- Soot blowers
- Large plant air
- Decoking air
- Pneumatic conveying
- Multiple processes (e.g. Air & Nitrogen)
MSG® Centrifugal Gas Compressors Applications
- Fuel gas boostingAi
- Natural gas gathering
- Refrigeration gas
- Carbon monoxide
- CO2 (wet or dry)
- Flue Gas
- SynGas
- Recycle gas
- Landfill gas
Comparison MSG® vs Other Compressors
Feature | MSG® CENTRIFUGAL COMPRESSORS | OTHER COMPRESSORS |
|---|---|---|
LOW MAINTENANCE |
|
|
OIL-FREE GAS |
|
|
RELIABILITY |
|
|
OPTIMUM CONTROL |
|
|
COMPACT INSTALLATION FOOTPRINT |
|
|
Maintenance & Parts
- Genuine Spare Parts
- Field Service
- Installation
- Startups
- Vibration analysis
- Turnaround inspections
- Field balancing
- Drive motor alignment
- Control system services
- Performance evaluation
- Preventative maintenance
- Diagnostic checks
Performance Enhancing Upgrades
- Aerodynamic Modifications
- Additional Upgrades
- Duplex Oil Filters
- Duplex Oil Coolers
- Control Valves
- Cooler Bundles
- Inlet Guide Vanes
- Techtrol Gold Centrifugal Compressor Lubricant
- Xe-145F Series Centrifugal Compressor Controller
- MAESTRO Universal Centrifugal Compressor






Reviews
There are no reviews yet.