Quality |
Hydraulic systems are prone to leakage of contaminating fluid and therefore are fundamentally environmentally unfriendly. |
Electromechanical are enviormentally Friendly |
Reliability |
Hydraulic systems are involve large number of parts,so compare to Electro-mechanical its not that much Reliable |
Electro-mechanical systems are simpler and involve fewer parts so are inherently more reliable. |
Maintenance |
If not maintained properly, hydraulic systems will run low on fluid which will render them inoperable and may damage or destroy components. |
This is not an issue for electromechanical systems which require no routine servicing. |
Performance |
The viscosity of hydraulic fluid may vary with temperature, contamination etc. giving rise to performance inconsistencies over time. |
Compare to Hydraulic ,electromechanical will not Vary that much with temprature ,Contamination etc… |
Costs |
The motors employed in hydraulic are not that much substantial compare to electromechanical.Small, much cheaper high speed motors are often used in hydraulic systems because the fluid acts as a “gearing” medium. |
The motors employed in electromechanical are necessarily more substantial than for hydraulic systems. Mass production, driven by strong demand has rendered electromechanical systems less expensive. |
Ease Of Use |
These are generally not easier to install,Integrate as compare to Hydraulic |
The operating principles of electromechanical systems are obvious and they are generally easier to install being integrated in design and function. |
Components |
There is not a single part immeresed in oil bath,Including motor also |
In electromechanical systems, all moving parts are immersed in an oil bath, including the motor. |
Noise Levels |
Difference in perceptible noise may be acceptable when new but will become more marked in hydraulic systems as components wear. |
High quality electromechanical systems are invariably quieter than their hydraulic equivalent. |
Operational Response |
The current sensing circuit will react as quickly as fluid flows through the pipe work. |
The current sensing circuits used in the latest electromechanical systems are more reliable and much faster acting than hydraulic relief valves |