# KOA Series Centrifugal Air Compressors- Kotech Group | Leading Industrial Air Compressor Manufacturer | Oil-Free & VSD
URL: https://kotechgroup.net/air-compressor/koa-series/

KOA Series Centrifugal Air Compressors- Kotech Group | Leading Industrial Air Compressor Manufacturer | Oil-Free & VSD

## Centrifugal Air Compressors

This type of compressor uses a centrifugal impeller to increase the pressure of the air, resulting in a compressor that is quieter and more efficient. Kotech compressors provide efficient and reliable operation, as well as reliable and efficient after-sales service.

- Working Pressure: 0.8 - 25bar
- Air Delivery: 25 - 1500m3/min
- Power Rate: 100 - 6000kw

KOA Series · Centrifugal Compressor (Turbo Compressor)

# KOA Series Centrifugal Air Compressor for Industrial Plant Air

A centrifugal compressor (also called a turbo compressor) uses high-speed impellers to deliver stable, efficient compressed air for continuous-duty industries. KOA Series is built as a packaged, integrally geared solution with project-friendly installation and serviceability.

 Oil-free & Silicon-free design (as listed) Siemens PLC + Touchscreen (as listed) Anti-surge protection (as listed) 

Quick Range (KOA family)

Working Pressure 0.8–25 bar(g) Air Delivery 25–1500 m³/min Power Rate 100–6000 kW

Tip: Tell us your required flow (m³/min), discharge pressure (bar), voltage, cooling water condition and industry. We’ll recommend the right KOA/KOS/KOT/KOL configuration.

Why Centrifugal How It Works Design Highlights Technical Parameters Applications FAQ

## Why choose a Centrifugal Compressor (Turbo Compressor) for plant air?

A centrifugal air compressor is typically selected when you need large flow, continuous operation, and high efficiency in industrial plants. Compared with many positive-displacement compressors, the centrifugal (turbo) design can provide stable air delivery with low vibration and a project-friendly packaged layout.

High Efficiency at Large Flow Best-fit for large plant air demand and long running hours.

Low Vibration & Low Noise

Designed for stable high-speed rotation and continuous-duty industrial environments.

Packaged, Project-Friendly

Integrally geared package design supports practical installation and maintenance planning.

| Selection factor | Centrifugal / Turbo compressor | Typical alternative |
| --- | --- | --- |
| Best use case | Large flow, continuous plant air | General purpose / medium flow |
| Efficiency focus | Strong at large demand ranges | Depends on duty cycle and load profile |
| Maintenance style | Project-based service planning | More frequent wear components (varies) |

## How a Centrifugal (Turbo) Compressor Works

A KOA centrifugal unit is typically driven by an electric motor and uses high-speed impellers to convert velocity energy into pressure energy. The simplified process:

1) Inlet Air enters through inlet guide vane control.

2) Impeller Impeller accelerates air at high speed (turbo stage).

3) Diffuser Diffuser converts speed to pressure efficiently.

4) Cooling & stages Intercoolers + multi-stage options support stable discharge.

Need a centrifugal air compressor