الفرق بين الهيدروليك والنيوماتيك (الانظمه الهوائيه)

كتب @ahmedeldeep:

The Difference between Hydraulics and Pneumatics
الفرق بين الهيدروليك والنيوماتيك (الانظمه الهوائيه)

Hydraulic system

1) Works with incompressible fluid.
Ex: Water, oil
2) Maximum pressure (70 - 700 bars).
3) Very big force.
4) High pressure.
5) Response slow compared to pneumatic.
6) Heart of hydraulic system: Pump.
7) Pump produces flow not pressure.
8) Weight and cost is high.
9) Applications: Sheet metal working, earth moving equipments, loader.
10) Disadvantage: Leakage, pollution, maintenance, clean less, tight tolerance.

Pneumatic system

1) Works with compressible fluid.
Ex: air, gases
2) Maximum pressure (8-15 Bar).
3) Weak force compared to hydraulics
4) Low pressure.
5) Fast response.
6) Heart of pneumatic system: compressor.
7) Compressor occupies air in tank of limited volume.
8) Weight and cost is low.
9) Applications: low force applications like production lines, control applications.
10) Disadvantage: Low forces, compressible of fluid.

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