TRX series is the largest model range in the industrial centrifugal air compressors product range of IHI. The TRX range features optimized aerodynamic design options, low maintenance requirements and easy installation features.


Motor Size 900kW-1,800kW 500-1,266hp
Flow Rate 9,500-20.000m3/h 5,591-11,772cfm
Discharge Pressure 0.2-1.0MPaG 30-145psig
Dimensions Length 4,100-5,200mm
Width 1,950-2,300mm
Height 2,000-2,800mm
Weight 8,300-13,500kg

General Information

IHI has more than 1,500 aero parts design for the most optimized centrifugal compressors to meet customers’ requirements. The aerodynamic design has been analyzed by Computational Fluid Dynamics (CFD) method, same as we use when designing jet engines and turbo chargers.

By supplying the most suitable centrifugal compressors , IHI can contribute to energy saving for your plant, as well as reducing life cycle cost dramatically.

TRX series consists of vital components, such as air cooler, main motor, control panel, gear box, suction filter and all these will be fitted into one compact package. This simple design allows for smaller installation space and shorter installation time. The structure of the robust gear box provides the customers with high reliability by utilizing tilting pad journal bearing, customized core parts(Impeller, diffuser). These parts are designed with anti-wearing technology, built for long life and stable operation.

IHI centrifugal compressors supply 100% oil free air to the customers. They are classified under the latest ISO8573-1 Class 0 oil free, which is the highest grade for the purity of compressed air, by an independent third-party test house TÜV in Germany, minimizing the risk of oil contamination.

“Always anticipate the users’ needs!”

This is our motto in developing IHI centrifugal compressors.

IHI has continued to dominate the Japanese centrifugal compressor market for a long period of time, owing to our superior technological advantage. In IHI’s history, the quality of centrifugal compressors has been enhanced with strict requirements from leading Japanese companies which includes automotive, semiconductor, iron and steel, refinery, petrochemical, air separation and food industries.

At present, there are over 8,000 IHI centrifugal compressors at work throughout the world. Based on the customers’ needs in all over the world, IHI will continuously look to develop our centrifugal compressors to meet each customer’s ever changing needs.