A small presentation on types of Hydraulic oils and criteria of its selection

1. TYPES OF HYDRAULIC OIL & ITS
SELECTION

2. INTRODUCTION:
• What is Hydraulic System ?
• Basic Working Principle
• Components included in the system

3. HYDRAULIC OIL/FLUID
• Non-compressible fluid used to
transfer power within hydraulic
system.
• Properties
-Constant viscosity
-Non-corrosive
-Anti-wearing
-Thermally stable

4. MAIN DOMAIN :
Natural
E.g. Mineral oils
Synthetic
E.g. Phosphate Easters
Bio-degradable
E.g. Canola Oil

5. TYPES :
1. Mineral Oil :
• ADV : Good Lubricity, Cheaper, High V.I., Wide range of viscosity,
Easily available, Corrosion resistance.
2. Oil-in-Water Emulsion :
• ADV : Good Fire Resistant,
Good Heat Transfer, Cheapest.

6. 3. Water-in-Oil Emulsion :
• ADV : Good Lubricant, Good Heat Transfer, Good Fire Resistant,
High Viscosity, Less Leakage
4. Water Glycol :
• ADV : Good Wear Resistant, Good Heat Transfer,
Good Fire Resistant, Seals Compatibility
5. Synthetic Fluids:
• ADV : Very Good Fire Resistant, Good Heat Transfer,
Good Lubricant, Seals Compatibility

7. SELECTION OF HYDRAULIC OIL
• Force to be generated
• Required lubrication
• Pressure
• Heat generated
• Viscosity

8. OTHER FACTORS :
• Fluid life, disposability
• Corrosion
• Most fluids need R & O inhibitors
• Wear and tear of Hydraulics.

9. THANK YOU!