Rotating machinery and especially centrifugal compressors typically provide long lifetime. It is no exception that if well maintained, several decades old machines are in service without major issues. Users may favor to keep such machines running, however sometimes spare parts are not available or the use of original parts would be a limiting factor in total ownership costs evaluations. Progress in modern 3D scanning methods has allowed for highly cost-efficient reverse engineering of components and created whole new options for spare parts manufacturing.

However, in many cases more advanced engineering including in depth knowledge of design & analysis of rotating parts is needed. This is where RotMach expertise provides real value to our clients. We are ready to support on both planned & emergency repairs. If needed, we can advise on compliance with API standards such as API 617 or API 687 for rotor repairs.

We can also provide engineering support on rotor balancing, especially for flexible rotors where often in-depth understanding of rotor mode shapes and bearing properties is required to successfully meet stringent rotor residual unbalance and machinery mechanical vibration limits.