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A Hydraulic cylinder (also called a linear hydraulic motor) is a mechanical actuator that is used to give a unidirectionalforce through a unidirectional stroke. It has many applications, notably in engineering vehicles.

Table of Contents:

**Formula**

**Push =sin(angle)*PSI*3.1415*b ^{2/4} lbs.
pull =sin(angle)*PSI*3.1415*(b^{2}-d^{2})/4 lbs.**

Hydraulic cylinders get their power from pressurized hydraulic fluid, which is typically oil. The hydraulic cylinder consists of a cylinder barrel, in which a piston connected to a piston rod moves back and forth.rod moves back and forth.

__Example__:

**Calculate the Push and Pull of a Hydraulic Cylinder.**

Bore of a Cylinder (b) = 5

Pound per Square Inch (PSI)=10

Diameter of a Rod (d) =5

Angle (degrees) = 30

__Solution__:

Push =sin(angle)*PSI*3.1415*b^{2/4} lbs.

= 30*10*3.1415*5*2/4

**= 98.00**

pull =sin(angle)*PSI*3.1415*(b^{2}-d^{2})/4 lbs.

= 30*10*3.1415*(5*2-5*2)/4

**= 0.00**