Equipment, frames and bases can be suspended with spring boxes using two methods:
• Active isolation (isolates vibrations generated by suspended equipment): mostly employed in factories and the metal transformation industry. Contemporary suspensions of turbines, pumps, ventilators and power generators are based on the same principle as spring boxes used to isolate jackhammers and presses.
• Passive isolation passive (isolates vibrations transmitted to suspended equipment): to protect sensitive equipment and foundations from disruptions in the immediate area, e.g. generated by industrial machines or traffic. This type of protection can even be employed to counter the impacts of earthquakes and aerodynamic forces due to wind.