Detail and part of industrial hydraulic or pneumatic machinery made of steel, piston or actuator, engineering and technology concept

Perhaps, you think about what would be the best tool you need for your machine. The Hydraulic actuator might be the solution. Hydraulic linear actuators have a piston-cylinder structure. A pump fills the cylinder with an incompressible liquid, which forces the piston to move. With increased pressure, the piston moves linearly within the cylinder, and the speed changes by altering the fluid’s flow rate. Not only is a high-speed hydraulic actuator quick, but it is also capable of producing considerable force. A spring-back pressure or fluid supply from the other side causes the piston to return to its retracted position. This article will give the top reasons why you should have a Hydraulic Actuator. 

Superior Force Capacities

Hydraulic capacity delivers great force, one of the major factors in the widespread use of technology and machinery. High pressures enable smaller cylinders to exert mighty forces. Respectively, at 2200 psi, 3-inch and 5-inch bore cylinders can generate 15,000 lbf (66,723.3 kN) and 43,000 lbf (191,273.5 kN) of force. The construction and engineering industries utilize hydraulic devices for a variety of functions. A hydraulic actuator’s primary function is typically lifting, but it can also push, crush, and stomp.

The horsepower-to-weight ratio of hydraulic actuator motors is high. In proportion to their size, they generate a remarkable amount of force. It makes them both cost-effective and highly efficient. Hydraulic oil that has been compressed cannot be squeezed further. When pressure is applied to one end of a hydraulic actuator, the hydraulic fluid doubles the pressure and converts it into a mechanical movement. Because of this, hydraulic actuators can create a tremendous deal of force.

Strong Construction

Hydraulic actuators are renowned for their ability to tolerate extreme environments. When used for the proper applications, they can be durable and dependable. Their robust construction allows them to withstand shock loads. Gear reduction is utilized to generate electric motors and force. Engines may be powered by either alternating current (AC) or direct current (DC) and may be asynchronous (squirrel cage) or synchronous. Other gearing systems include worm, spur, and scotch yoke. Lubrication of gears may consist of an oil-filled gearbox or applying heavy-duty lubricant to gear surfaces. Various attachments are frequently available to monitor and report on the state and operating circumstances of the actuator.

Top Accuracy And Agility

Accuracy and Agility are two additional benefits of hydraulic devices. The piston is primarily regulated by adjusting the number of hydraulic fluids. Some machines use this benefit to imitate arms to implicate the movements. Several hydraulic actuators serve as muscles that push and pull the machine arm to offer it movability.

Without the line, it is impossible to regulate the movement of the actuator. The line governs the volume of fluid within the cylinder. Adjusting the fluid level allows the user to control the piston’s movement. The piston is subsequently connected to an external component; when a driver presses the brake pedal, the master cylinder moves, which engages the hydraulic brake actuator, pushing the brake pad on the wheel to slow the vehicle.

Hydraulic rotary actuators incorporate motors and a gearbox to regulate a rotational force. This actuator is designed to perform without requiring excessive volume and energy. The rotating hydraulic actuator’s engine connects to two pistons simultaneously. The rotation of the motor causes both pistons to move.

Efficient Design

Hydraulic technology is well understood, and the design of cylinders is simple. This type of actuator comprises a pump that creates the nominal pressure, a hydraulic servo-valve, and a thin elastic plate just as stretchy as the types of medical gloves you would consider using. The flexible plate converts pressure changes into forces acting on a mass that replicates a rotor system’s bearing. The definition of an actuator characteristic number provides a foundation for the optimal design of force actuators, considering weight, frequency, and force. Moreover, the actuator comprises a round, flexible steel plate (membrane) that bends when a pump creates pressure, and a servo-valve controls it. The circular membrane is placed between two sections of aluminum ring, creating clamped-clamped boundary conditions. Hydraulic pressure placed into the pressure chamber deflects the membrane, sending a force to the mass.

Safe and Efficient For Hard Machinery

Hydraulic force is simple to contain and regulate. Hydraulic systems are highly trustworthy, and their design has been safe and secure for many years. Many hydraulic controls are automated, but it is straightforward to include manual overrides that allow the user to control the actuator directly. In addition, because liquids are incompressible, there is no delay between force and motion in a hydraulic actuator vs pneumatic actuator. They are suited for applications demanding extensive or massive lifting, such as construction and mining. Moreover, these devices cannot function under exceptionally high or low temperatures. These hydraulic actuators are suitable for more force and faster operating speed applications.

Affordable and Ideal For Ball Valve

Hydraulic actuators typically have a lower initial purchase price than other actuators.  It is appropriate for situations requiring floating ball valves with greater force but less precision or consistency.


The selection of the proper actuator is entirely dependent on the application. You must have a clear vision and comprehension of what you want your actuator to accomplish, the environment in which it will operate, and what you believe to be the optimum return on investment. Before deciding on actuation technology, you should thoroughly examine your application and its needs. Suppose you require a  ptz broadcast camera programmable, efficient, a low-maintenance actuator that can manage a complex motion profile and have an extensive application that requires dependable power. In that case, a hydraulic actuator may be what you need.