Hydraulic Oil: Types and Benefits

Hydraulic machinery manufactured by Hydraulic System Manufacturers uses high pressured fluid to apply force to drive the machinery.

A good fluid will give you a number of benefits, to name a few:

Reduced oxidation caused by heat and reaction with oxygen. Thus resulting in long life of the oil.
Good viscosity in hot as well as cold weather. Very thin or very thick oil has its problems. Thin oil leads to leaks and if it is very thick, it will not exert the proper amount of pressure for good functioning of the machinery.

Wear resistance is present in oil additives. This prevents abrasion of system parts and extend the life of the unit.
Filtration with filtration systems in the machine is effectively possible with good quality fluids. Contamination is filtered without any compromise on the quality of oil.
Foam inhibitors prevent foam and air bubbles.

There are basically three types of oils that hydraulic system manufacturers use to power their machinery:

Petroleum-based – These are also known as mineral-based fluids and are most common. Their quality depends on the additives used. The additive protects the system from rust, corrosion, improves viscosity and prevents it from wear and tendency to form foam.

Water-based – The major advantage of water-based fluids is that since their major component is water, they are good in providing fire resistance. These are used in systems where temperatures are very high and so constant watch is necessary. If the temperatures are too high, the water in the fluid may evaporate. Distilled water needs to be added in the right portion to maintain the water level and viscosity.

Synthetic – These are man-made fluids and provide good lubrication, prevent the machinery from wear and provide thermal stability. Some of the synthetic oils are also fire resistant. However, they are costlier than petroleum and water-based oils.

Essem Engineers are the manufacturers of hydraulic machinery in Delhi. If you are buying a unit form them, get in touch with the expert Essem Engineers staff to know more about the type of oil ideal for the functioning of your unit.



Know your hydraulic system machinery

Hydraulic system machinery has been defined as ‘a power transmission system that uses the force of flowing liquids to transmit power’.

The hydraulic fluid in these machines flows to all the hydraulic motors and cylinders and these become pressurized. The fluid is controlled by control valves that distribute it in the machinery through hoses and tubes. The path in which the fluid flows in called the hydraulic circuit. This is of two types:

  1. Open center circuit:
  2. Closed center circuit:

 Hydraulic system manufacturers make a variety of machinery that are widely used in different industries. Hydraulic press, motors, hammers, jack, breakers, pipe benders, robots, chainsaws, etc. are a few types of popularly used machinery.

Advantages and disadvantages of hydraulic system machinery


  • Output force can be adjusted with the help of valves that are used to adjust pressure.
  • Unlike the electric motor, this machinery can be instantly reversed when in full motion without causing any damage. Electric motors on the other hand need to be first stopped before reversing.
  • Vibration in these type of machinery is minimum. And so, the start and stop motion of these units is smooth.
  • There is less loss due to friction and therefore high efficiency.


  • Initial cost is high. However, it is made up for by the high efficiency of the machinery in the long run.
  • Oil leakage might occur and it is hazardous. Therefore regular maintenance checks are very important.
  • Filtration system is required to keep oil clean so that there is no clogging and the machine runs smoothly.


Essem Engineers are reputed hydraulic system manufacturers and suppliers in Delhi. They have a variety of hydraulically powered machinery that includes cylinders, PowerPacks AC/DC, presses and machines, interlocking paver press, scissor lifts, systems for water cannons, solid waste handling equipments, dock levelers, etc. Check out the Essem Engineers website for more details. 

What is a Hydraulic Scissor Lift?

The Oxford dictionary defines a scissor lift as “A surface raised or lowered by the closing or opening of crossed supports pivoted like the two halves of a pair of scissors.”

Scissor lifts are popularly used in a lot of industries to reach high areas of work and also to lift or lower load. It has arms that open and close like a scissors to raise and lower the height of the platform that is fixed on the top of the unit. This helps in adjusting the height of the platform according to one’s requirement.

A scissor lift can be of any of these three types:

Hydraulic Scissor Lift
Mechanical Scissor Lift
Pneumatic Scissor Lift

Hydraulically powered units are the most popularly used machinery as they can withstand huge amount of weight. These use pressurized hydraulic oil that is pumped in the machinery to make it function; that is to extend and contract its arms. These can reach up to great heights. However, care should be taken that such units have railings on the work platform to prevent workers from falling.

A hydraulic scissor lift can easily be fitted with a work platform of the user’s choice. These units can also be fitted with wheels to make moving them easier from one place to another. Hydraulic scissor lift manufacturers in Delhi provide custom made platforms to be fitted on the units for maximum functionality for the user.

Care and maintenance

Care should be taken while functioning the machinery. Always remember that the machine is powered by oil. This oil becomes more fluid in summers and so the unit runs a bit faster in this season.

Timely maintenance checks are necessary for long life of the machinery and safety of the users.

Hydraulic scissor lift manufacturers in Delhi provide a list of safety instruction. Always go through these in detail before operating the unit.