Pulleys are discovered to make the easy tasks of the people and it finds a great place in industries for the execution of a number of operations.  Technological advancements makethese pulleys are advanced and able to bear the maximum loads during the operation. Different types of Pulleys exist for use in industries. Let us see about them.

Fixed Pulleys: It is one of the simple and common types of pulleys used in industries. The pulleys used in this type will be mounted on the wall or on the stable platforms for use and actually, the name arises because of this nature.  Since the force applied on the pulling side is equal to the force exerted on the lifting side of the pulley the net efficiency will become zero. Though the net efficiency is zero, it finds an important place in the industries to change the pull and lift direction in the system.

Movable Pulleys: The name itself predicts exactly what kind of pulleys it is. Yes, It is the kind that moves around the positions, unlike the fixed pulleys where that was mounted on the stable platforms. The force applied in this to pull will be multiplied on the lifting side. So that its efficiency will be more. Changing the lifting direction is not possible in this kind of pulley. The idle efficiency factor makes this suitable for industrial applications to lift heavy loads like in cranes used for construction.

Compound Pulleys: It is the combination of both movable and fixed pulleys. Since both have specific advantages use of this kind of pulley will provide greater output to the system in the industry. Fixed Pulley has zero efficiencies but has the ability to change the direction. The movable pulleys have more efficiency but do not have the ability to change the direction, Hence the combination will deliver the best result under usage.

Trapezoidal Pulleys:These kinds of pulleys are used to transmit power with the help of trapezoidal belts between the axels. These trapezoidal pulleys (poleas trapezoidales) have specific geometry compared to other types that the grooves are located around the pulley circumferences. This kind of pulleys is classified as one of the most efficient ones (approximately 98 percent) compared to others.