Discover the complete range of centrifugal air compressors from ASG Energy Solutions, purpose-built for industries needing a large supply of compressed air or gas.
Everything You Need to Know About Centrifugal Compressors
We’ve compiled essential information to help you understand centrifugal air compressors:
What are centrifugal compressors used for?
Benefits of ASG centrifugal compressors
How does a centrifugal compressor work?
Efficiency of centrifugal compressors
Types of centrifugal compressors
What Are Centrifugal Compressors Used For?
Industries that demand high volumes of compressed air trust ASG’s centrifugal technology. Each compressor features a custom-designed impeller, optimized for specific power and pressure ranges.
These compressors are engineered for durability and reliability, with applications across:
Automotive
Food & Beverage
Pharmaceuticals
Textiles
Power and Renewable Energy
Wastewater Treatment
Chemical and Petrochemical
Oil and Gas
Choosing Between Oil-Free Screw and Centrifugal Technology
Advantages of ASG Multistage Centrifugal Compressors
Continuous, 24/7 operation
Energy efficiency through multi-speed stages
Economical and cost-effective
Low-noise design with canopy
High-performance cooler
Space-saving footprint
Types of Centrifugal Compressors
ASG Energy Solutions offers both standardized and custom-engineered centrifugal compressor systems, including:
Centrifugal blowers – up to 1.5 bar
Oil-free air centrifugal compressors – up to 13 bar
Process gas multistage compressors – up to 205 bar
Three Main Configurations
Axial Multistage Compressors
Low-speed, direct-driven compressors with multiple impellers aligned axially for pressure build-up.Geared Turbo Compressors
Induction motor-driven radial impellers powered by gearboxes. These use hydrodynamic bearings for high-speed performance.High-Speed Turbo Compressors
Gearless radial compressors with direct-drive permanent magnet motors and magnetic bearings.
Oil-Free Air Centrifugal Blowers – Up to 1.5 Bar
Applications
Ideal for applications requiring clean, oil-free air at lower pressures (300 mbar to 1.5 bar), including:
Wastewater Treatment
Food & Beverage
Chemical and Petrochemical
Textile Manufacturing
General Industry
Power Plants
Mining
Flexible Blower Solutions
ASG provides multiple configurations tailored to unique project needs, balancing initial investment and total cost of ownership.
Product Highlights
ZB VSD+ Oil-Free Centrifugal Air Blowers
Maximize energy efficiency with Variable Speed Drive and direct-drive systems.ZM Oil-Free Multistage Centrifugal Blowers
Low-maintenance blowers/exhausters for pressure and vacuum in air or gas applications.
Oil-Free Air Centrifugal Compressors – 2 to 13 Bar
ZH Series Oil-Free Air Centrifugal Compressors
Designed for energy efficiency and long-term performance in sensitive industries such as:
Food and Beverage
Textile
Chemical and Petrochemical
Pulp & Paper
Benefits of ASG Oil-Free Technology
No oil contamination: Class Zero certified
Reduced filtration needs
Longer service intervals
Elektronikon controller for intelligent performance and remote monitoring
Lower energy consumption and positive environmental impact
High-Pressure Centrifugal Compressors – Up to 205 Bar
Engineered for Process Air and Gas Applications
Custom-built cores for:
LNG
Chemical / Petrochemical
Gas Processing
ASG offers both single-shaft and integrally geared compressors, ranging from 1 to 8 stages.
Standardized Compressor Models
AeroBlock™ – Efficient, standardized air compressors
TurboBlock™ – Compact fuel gas boosters
PolyBlock™ – Non-geared compressors for PP/PE production
Custom Engineered Solutions
Compander™ – Integrated compressor + expander for high efficiency
GT-Series – Up to 205 bar(a) and 500,000 m³/h
T-Series – For downstream apps, up to 43 bar(a), 65,000 m³/h
RT-Series – Single-shaft radial compressors
How Efficient Is a Centrifugal Compressor?
Efficiency ranges between 70–85%, depending on size and internal mechanical friction. Larger compressors tend to be more efficient due to:
Better flow characteristics
Lower relative roughness and friction
Reduced volumetric gaps
This is known as the scale effect.
How Does a Centrifugal Compressor Work?
By increasing the kinetic energy of air and slowing it down, pressure builds in stages.
Compression Stages
1 stage: Up to 2.5 bar
2 stages: 2.5–5.5 bar
3 stages: 6–13 bar
4–8 stages: Up to 205 bar
Key Components
Impeller: Adds speed to the air
Diffuser: Converts kinetic energy to pressure
Volute: Collects and directs the pressurized air to the outlet
