Hydraulic Intensifier - Construction, Advantages and Application

Hydraulic Intensifier Construction and Working Principle:

Hydraulic Intensifier:

Function: It is used to increase the intensity of pressure of the liquid (water) by means of energy available from a large quantity of water at low pressure. This device is used hydraulic machines such as hydraulic press, crane, and lift which requires liquid (water) at very high pressure. The high pressure cannot be obtained from the main supply directly. It is located between the pump and the hydraulic machine (crane, lift, press). 

Construction of Hydraulic intensifier: 

Hydraulic intensifier
Hydraulic intensifier


It consists of a fixed ram surrounded by a sliding cylinder which is itself surrounded by a larger fixed cylinder as shown in Fig. The sliding cylinder contains water at high pressure which is supplied to the machine through a fixed ram. The large fixed cylinder contains water from the main supply at low pressure. 

Working of Hydraulic intensifier: 

A large quantity of water at low pressure from supply enters the large fixed cylinder through valve V4. Same time, the sliding cylinder lies at bottom of the stroke. The valve V4 and V2 are then closed and the valve V1 is opened. Hence low-pressure liquid from the supply enters the sliding cylinder through valve V1, and the value V3 is also opened which allows the low-pressure liquid from a fixed large cylinder to discharge to the exhaust. 

Therefore, the sliding cylinder moves upward. When the sliding cylinder reaches its topmost position, the inside space of the sliding cylinder is full of low-pressure liquid. Then valves V1 and V3 are closed and V2 and V4 are opened. The low-pressure liquid from the supply enters the large fixed cylinder and forces the sliding cylinder to move downward, hence the pressure of the liquid inside the sliding cylinder is increased and high-pressure liquid is supplied to the hydraulic machine. 

Application Hydraulic Intensifier:

A hydraulic intensifier is used to supply high-intensity pressure where needed.

A hydraulic intensifier is used where the pump is not sufficient to provide a high intensity of pressure as per the requirement.

The hydraulic intensifier is most commonly used in hydraulic cranes, hydraulic ram, hydraulic press, and hydraulic lifts, etc where the high intensity of pressure is required to lift the loads.

Also Read: Air Compressor

Advantages of Hydraulic intensifier:

It is very easy to operate and control.

It can easily work with the pump, so it is attached in between the pump and the hydraulic machinery.

It provides constant force and pressure in the whole working process.

It is a compact device and very easy to operate and control.

It can be directly attached to the hydraulic machinery, where it is needed.

It is a compact as well as an energy-saving device.

It has high-speed operation due to this it can be easily started and stop as per our requirements.

It is a cheaper device it is simple in working, and economical in operations.


Disadvantages of Hydraulic intensifier:

This system requires high maintenance.

The hydraulic fluid used is may be rusty, and dust particle which damage the machine parts.

The main disadvantage of the hydraulic intensifier is the same which mostly occurs in case of the all other hydraulic systems Ex. leakage.

The main disadvantage is the leakage fluid may catch fire so the working should be done in a proper manner and try to avoid any small leakage of the fluids.

Also Read: Types of Fluid

Hydraulic Intensifier - Construction, Advantages and Application Hydraulic Intensifier - Construction, Advantages and Application Reviewed by Harish on October 10, 2020 Rating: 5

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