Linear Actuators Assist in Automation

To control a mechanism or system, a mechanical device known as actuator is used. It is operated by an energy source like hydraulic fluid pressure, electric current or pneumatic pressure and converting that energy into some kind of motion. Whereas a linear actuator is the type of actuator that when driven by a non-linear motion, creates linear motion (as compared to rotary motion, e.g. of an electric motor). The best ways of achieving Mechanical and hydraulic actuation are hydraulic and linear actuators. To be precise it is a mechanical device that creates force and motion, from a given energy source, in a linear manner, as compared to rotationally like an electric motor.

They modulate control valves, move work tables on industrial machines, move printer and scanner heads back and forth on computer equipment and drive material handling equipment and robotics. They drive lifts and shovels on construction equipment and provide the oscillatory motion of audio loudspeakers. The magical machines are powered by 12 or 24 volt power sources. A power adapter, car or marine battery can be connected to an actuator with ease. These instruments are popular in many fields such as medical equipment, furniture, consumer products, hobby design and any other products where automation is needed.
Conversion of rotary motion into linear motion is the operational basis of Mechanical linear actuators. A few simple types of mechanism generally get the conversion accomplished.

The DC linear actuators can be combined with control boxes, rocker switches and mounting brackets and the control box will enable you to connect to a regular (AC) home outlet and the mounting brackets are designed specifically for mounting our PA-02 actuators. It takes less than five minutes to set up the control boxes and operate it. Every control box comes with a remote to control the dc mode of the instrument's movement or a foot pedal can be purchased instead.

Most of the linear actuator designs functions on a simple basic principle. The principle is guided by the character of an incline plane. A lead screw threads act as a prolonged ramp that allows a small rotational force to be operated over a long distance to gain movement of a heavy load over a short distance.
Some of the combination of the instrument may be:
Force Speed
120 lbs 1.50 inches per second
160 lbs 1.18 inches per second
250 lbs 0.98 inches per second
330 lbs 0.63 inches per second

Progressive Automations is a popular supplier of the largest on-line selection of small to mid size linear actuators. It provides a large variety of competitively priced linear actuators in different sizes, force and speed.

Why Linear Actuators Are Essential for Business Growth

What is a linear actuator? What are its diverse facets and benefits?

The counters to the above indicated questions would not differ based on the perception of diverse organizations and would lie in the minds of those who have been expansively exploiting and implementing the various techniques of a device that is known as "linear actuator." Various conglomerates have been dynamically reaping the benefits of what is known as a linear actuator. The operative use of such mechanisms paves the right track for any specific business to grow and provide an opportunity to have that competitive edge over its contenders.

An actuator has become nowadays an imperative part of every industry because of the reason that it is so adaptable and flexible. Nevertheless, they can be intricate in their simplest form. It is a mechanical device that is employed for the purpose of controlling a system or mechanism and is driven by an energy source like electric current, pneumatic pressure or hydraulic fluid pressure and transmuting that energy into some kind of motion. You should be cognizant of the fact that you also get what are known as rotary actuators other than linear actuators. They are too operated in almost every industry and can be complex at the same time. For instance, your car's windscreen wiper system is known as the mini rotary actuator.

12V electric linear actuators offer accurate movement in circumstances where space is restricted, and where daintier payloads are used. You can realize the true power of the 12V linear actuators lies in its ability to provide vigorous results while functioning on batter power.

A linear actuator is an easy-to-use and adroit device that has been brought in the market in order to make work stress-free and unpretentious in various fields. Irrespective of the type of fields, you can efficiently make use of such a magnificent device for hobby design, furniture, medical equipment, consumer products, engineering industry or any other related area, they are bound to make your much simpler and unproblematic. It is evident that whenever there is a requirement of automation, this device is zealously used.
Such actuators have been used in diverse applications that exist on this planet. They are basic building blocks as manufacturing automation paraphernalia. Hydraulic power for a linear actuator is a judicious choice if the application is in need of great force to execute the required tasks. They are one of the most sought after tools and their role comes into effect when there is a need to maneuver an instrument or a structure.

Progressive Automations is a leading name and is an on-line wholesaler of linear actuators and lifting columns and caters to various needs of the consumers in the United States and Canada. It offers to its consumers a diverse variety of cost-effective linear actuators in terms of speed, size and force.

Basics of Linear Actuators

A linear actuator is a part of motion control systems. Various forms of energy like mechanical, electrical, hydraulic and pneumatic are used for running these actuators. Linear motion actuators find maximum usage in factory automation and robotics.

There are various forms of energy that run actuators. These forms of energy include, hydraulic, pneumatic, mechanical and electrical. Linear actuators are used a lot in robotics and factory automation.

Linear motion actuator is used for converting rotational motion into linear motion. There are different types of motors like DC brush, stepper and induction motors that can be used as linear actuators. Usage of these motors varies according to the requirement of the application and the load capacity of the actuator.

For example, if a linear actuator is using integral horsepower AC induction motor, it can be used to convert the motion of large valves in refineries. Because, in such cases high speed and force are more important that the move resolution and accuracy of the actuator.

Principle of operation is the basic concept behind design of linear servo actuators. Most of the electro-magnetic actuators come with lead screw and lead nut; whereas, others come with a ball nut and screw. In both the cases, screw is either connected to manual control knob or to the motor directly or via series of gears.

Some of the lead screws come with multiple starts, which mean many threads alternating on the single shaft. This makes more space for adjustment between screw and thread pitch that defines the load carrying capacity and extension speed of the motor.

Because of extreme competition, manufacturers are making integrated actuators that are efficient, simple and also improve the over functionality.

What make linear actuators better in comparison to other motors are their faster speed, higher accuracy and greater acceleration. These are used for gantry axes, general purpose position, gantry axes and assembly machines. Linear stages are specially meant to be used in adverse conditions and act as replacement against other hazardous actuators for performing the job.

Other than linear actuators, DC actuators are also used for performing similar applications. These run smoothly and don't produce much noise. Many DC actuators available in the market are water proof. Buyers can opt for standard as well as customized range of actuators depending on their need and budget.
Linear actuators come in different shapes and sizes, so that they can be used for anything in just every industry.

IntelLiDrives, Inc. manufactures linear actuators, rotary tables and XY systems.
For more information visit http://www.intellidrives.com

Linear Actuators: Types and Characteristics

A Linear Actuator is different from electric motor because it applies force in a linear way instead of rotationally. The linear motion can be achieved in different ways and a linear actuator is one of the devices that can covert rotational motion to linear motion.

Mechanical type
A mechanical actuator converts the rotary motion to linear displacement through screws/gears to which a knob is attached. One of the renowned examples of mechanical actuator is a jackscrew or car jack. Mechanical actuator is used in lasers and optics for manipulating the position of mirror mounts, linear stages and many more positioning instruments.

Hydraulic type
A hydraulic actuator or cylinder has a hollow cylinder with a piston inside it. Controlled linear displacement of the piston is achieved by pressurizing/de-pressurizing two sides of the piston. Hydraulic car jack is the most common example of a manually operated hydraulic actuator.

Electro-mechanical type
A linear electromechanical actuator is a in which a nut is the main part of the motor. The lead screw of the actuator doesn't rotate and the lead nut is rotated by the motor. It is similar to mechanical actuator but an electric motor is used instead of a control knob or handle.
The modern linear actuators come in different designs and every manufacture has their own proprietary methods of making actuators.

Principles of Linear Motion Actuators
The basic operation principle of linear motion actuators is an inclined plane. The lead screw has threads, which act as ramp and allow small rotational force that can be used over long distance for achieving the movement of large load within a shorter distance.

Variations in Linear Motion Actuators
There are different variations in the basic design of linear actuators. Most of the devices have general improvements like higher speed, efficiency or load capacity. Nowadays, manufacturers are also focusing more on reducing the size of these actuators. There is variety of actuators available in market, which fits specific industrial needs of buyers.
What make linear motion actuators better in comparison to other motors are their faster speed, higher accuracy and greater acceleration. These are used for gantry axes, general purpose position, gantry axes and assembly machines. Linear actuators are specially meant to be used in adverse conditions and act as replacement against other hazardous actuators for performing the job.


Other than linear actuators, DC actuators are also used for performing similar applications. These run smoothly and don't produce much noise. Many DC actuators available in the market are water proof. Buyers can opt for standard as well as customized range of actuators depending on their need and budget.

IntelLiDrives, Inc. manufactures linear actuators, rotary tables and XY systems
For more information visit http://www.intellidrives.com

Robot Linear Actuators

Converting potential energy into mechanical energy is a hot field of study in science. Actuators are the devices that scientists study that convert different forms of energy into mechanical energy or motion. Not only are actuators a hot topic of study in robotics, but they also have benefits in medicine as well. Scientists believe that the more they can improve on actuators, the more it will benefit all of mankind.

The method in which a linear actuator works is that there is a motor that rotates a drive screw using a synchronous timing belt drive. There are some linear actuators can also use a worm gear or direct drive. Whatever the type of linear actuator, the turning of the screw pushes a drive nut along the screw, which then pushes the rod out. Spinning the screw in the opposite direction will retract the rod. The drive screw is either an ACME or ball thread or is belt-driven which is what gives the machine its motion. A cover over the screw protects the screw nut from environmental elements and contamination thereby allowing for the machines use continually without the chance of it getting gummed up. Thrust bearings allow the screw to turn freely under loaded conditions and gives the linear actuator its strength.

Linear actuators usually serve as part of motion control systems. These days most are run by computers. Control systems, a device that you find linear actuators in, move or control objects. This is made possible by the actuators.

Different forms of energy or energy sources can be used to power an actuator. The most common types of energy used are: hydraulic, mechanical, electrical, and pneumatic. Actuators are most commonly found in the robotics and industrial robotics industry.

Whatever type of actuator you use, it will depend on the required motion you seek. By far and away the most popular type of actuator used is for linear or straight line motion. You also have a few options available when purchasing an actuator. You have stroke length which is the amount of linear motion you get per revolution and also the load rating which is how heavy the object that you are going to move can be. Also you should keep in mind the amount of space an actuator will require. You can also buy a programmable actuator which allows you to program various operational efficiencies of your actuators.

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Linear Actuators

A linear actuator develops force and motion from an energy source. As evident by its name, the force and motion from this energy source is created in a linear manner by the linear actuator. This is contrast to the force and device developed by an electric actuator. The electric actuator develops force and motion rotationally. There are several kinds of linear actuators and linear motion can be achieved by many devices. Below is a list of types of linear actuators. Basically, actuators produce converts various forms of energy into mechanical energy. 

Hydraulic linear actuator: Hydraulic cylinders, better known as hydraulic actuators have a hollow cylinder with a piston inserted inside it. As its name suggests, the hydraulic linear actuator is built on hydraulic principle. The controlled precise linear displacement of the piston is achieved with the alternate pressurization and depressurization. This is turn creates a controlled and precise linear displacement in the entity that is connected to the piston. They normally use a hydraulic fluid and a cylinder to create motive force. An incompressible fluid is used to apply a force at one point, which is then transmitted to another point. Hydraulic linear actuators are a low maintenance device. Also, they work well for longer periods of times even in bad environmental conditions. Hydraulic actuators are quite an important part in hydraulic table lifts, used to move around heavy workpieces and hydraulic cab lifts, which are generally used in tow trucks and fire engines.

Electro Mechanical Actuators: Electro mechanical linear actuators are quite similar to mechanical actuators. The only major difference between an electro mechanical and a mechanical linear actuator is that the control knob is an electric motor. The rotary motion is then converted into linear displacement of the actuator.

In a linear actuator, a drive screw is rotated by a motor. This is done with the help of a synchronous timing belt drive or a direct drive or worm gear drive. This turning of the screw helps in pushing the drive nut along the screw. This drive nut in turn pushes the drive nut along the screw, and pushes the rod out. The rotation of the screw in the opposite direction will retract the rod.

The basic concept of linear actuator is to move an object in a straight line. Therefore, you would have to consider the purpose of the project before deciding on a linear actuator. The main aspects that you would have to keep in mind are the stroke length, the speed and the load rating of the actuator, before deciding on the type of actuator that you would be using.

There is a lot of information available about linear actuators all around. The Internet is the best place to get information about linear actuators. You can sign up on any forums or groups to find more information about the various types of linear actuators. Of course, while using linear actuators you will have to keep several things in mind, like safety concerns, environmental hazards and space constraints.

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Electric Linear Actuators - The Rotary Motion Producer

Mechanical energy is an area of science that is making strides every day. The study of how actuators produce mechanical motion by converting various forms of energy into mechanical energy is a source of great exploration. Science finds new ways to make use of actuators every day including for medical purposes. Many scientists believe that the more they study these seemingly simple machines, the more they will discover ways of helping mankind.

The way in which a linear actuator works is that there is a motor that rotates a drive screw using a synchronous timing belt drive. Some linear actuators can also use a worm gear drive or direct drive. Which ever the choice, the turning of the screw pushes a drive nut along the screw, which in turn pushes the rod out and the rotating the screw in the opposite direction will retract the rod. According to the Association of Sciences, the drive screw is either an ACME or ball thread or is belt-driven which is what gives the machine its motion. A cover tube protects the screw nut from environmental elements and contamination thus allowing for the machines use continually without the chance of it getting gummed up. Radial thrust bearings permit the screw to rotate freely under loaded conditions and gives the linear actuator its strength.

Linear actuators usually serve as part of motion control systems. These days most are run by computers. Control systems, a device that you find linear actuators in, move or control objects. This is made possible by the actuators.

There are various forms of energy that run actuators. These forms of energy include, hydraulic, pneumatic, mechanical and electrical. Linear actuators are used a lot in robotics and factory automation.

Linear motion is when an object moves in a straight line. This is the basic concept that drives the linear actuator. One has to stop and consider when choosing a linear actuator which type they need to fit the purpose of their project. Some things to keep in mind are the speed, stroke length and load rating of the actuator. Programmability of the actuator is also a factor especially when the application will be one that requires specialized detail. A linear actuator can be used in just about any forum. Ask yourself some questions when attempting to choose the right one for your project such as are there particular safety mechanisms required, environmental concerns to be addressed or space issues?

Source: Free Articles

Electric actuators: Different Types of Actuators

By: Lois Ling

An actuator is used to put something into automatic action. It is a mechanism by which an agent that can be either an artificial intelligence agent or any other autonomous being acts upon an environment. Meanwhile, it is the final element in a control system that can receive a low power command signal and energy input to expand the command signal as appropriate to produce the required output.

Like other things, there are also various types of actuators. The first type I have to mention is the linear actuator. It is a device that applies force in a linear manner, as opposed to rotationally like an electric motor. It provides a linear motion via a motor driven ball screw or ACME screw assembly. The linear actuator's load is attached to the end of the screw, or rod. The screw can be direct, belt, or gear driven.

The second one is hydraulic actuator. It is typically involve a hollow cylinder having a piston inserted in it. It uses a hydraulic cylinder. The hydraulic fluid cannot be used for energy storage, as a result, another power source must be used to create pressure in the oil. Typically, the term "hydraulic actuator" refers to a device controlled by a hydraulic pump.

Electric actuator is another important kind. There are two categories in use, i.e. stepper motors and direct motors. The former one is driven by a train of electrical pulses, while the latter one is most common in industrial robots.

The fourth type is the piezoelectric actuator. The piezoelectric effect is a property of certain materials in which application of a voltage to the material causes it to expand. These actuators exhibit characteristics like extreme rapid response, and amazing power. Therefore, they can be widely used in the precision opening and closing of valves in semiconductor manufacturing equipment.

Relatively, as to the above mentioned actuators, the linear actuator is simple in design. It is self contained and can have the minimum of moving parts, but it has low forces. However, the hydraulic actuator may have very high forces. Of course, this kind of actuators also has many disadvantages. For example, they can leak and require the external hydraulics pump, etc.

It is no doubt that actuators can be used in many places. They are used for the automatic control of a variety of valves, as well as other applications requiring high torque precision rotation in a small footprint. Typically, applications of actuators are PC controlled valve actuation, small valve control in production environment, and so on. All in all, their applications are very wide and they are quite important devices in industries.

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About the Author
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Electric Linear Actuators - The Rotary Motion Producer

Mechanical energy is an area of science that is making strides every day. The study of how actuators produce mechanical motion by converting various forms of energy into mechanical energy is a source of great exploration. Science finds new ways to make use of actuators every day including for medical purposes. Many scientists believe that the more they study these seemingly simple machines, the more they will discover ways of helping mankind.

The way in which a linear actuator works is that there is a motor that rotates a drive screw using a synchronous timing belt drive. Some linear actuators can also use a worm gear drive or direct drive. Which ever the choice, the turning of the screw pushes a drive nut along the screw, which in turn pushes the rod out and the rotating the screw in the opposite direction will retract the rod. According to the Association of Sciences, the drive screw is either an ACME or ball thread or is belt-driven which is what gives the machine its motion. A cover tube protects the screw nut from environmental elements and contamination thus allowing for the machines use continually without the chance of it getting gummed up. Radial thrust bearings permit the screw to rotate freely under loaded conditions and gives the linear actuator its strength.


Linear actuators usually serve as part of motion control systems. These days most are run by computers. Control systems, a device that you find linear actuators in, move or control objects. This is made possible by the actuators.

There are various forms of energy that run actuators. These forms of energy include, hydraulic, pneumatic, mechanical and electrical. Linear actuators are used a lot in robotics and factory automation.

Linear motion is when an object moves in a straight line. This is the basic concept that drives the linear actuator. One has to stop and consider when choosing a linear actuator which type they need to fit the purpose of their project. Some things to keep in mind are the speed, stroke length and load rating of the actuator. Programmability of the actuator is also a factor especially when the application will be one that requires specialized detail. A linear actuator can be used in just about any forum. Ask yourself some questions when attempting to choose the right one for your project such as are there particular safety mechanisms required, environmental concerns to be addressed or space issues?

Source: Free Articles

Electric Actuators: How Does Actuators Works?

In actuator valve engineering and design, it is essential for engineers, designers, and manufacturers to fully understand the aspects and processes of using this particular product that would eventually help build effective engineering designs in a safe and efficient manner.

One of the most significant products of the company would be the actuators. To make this technical term simpler, an actuator is a device that transforms or converts energy into motion. Also applied as a force, an actuator usually is a mechanical apparatus that takes energy, normally constructed by liquid, air, or electricity, and converts that into a specific kind of motion. This motion can relate to anything from clamping, blocking, to ejecting. These actuators are normally used in industrial applications or in manufacturing, and may also be used in different objects such as motors, switches, valves, and pumps.

From all the actuators available in the market, the most common type would be the ones that are powered by the air, also known as the air cylinder or the pneumatic cylinder. These air cylinders are air tight, usually made out of metal, which uses the energy of compressed air in order to move a piston. In addition, air cylinders are usually used in assembly processes and in manufacturing. On the other hand, grippers, normally used in robotics, use actuators powered by compressed air in order to work similar to the human touch.

Electricity or hydraulics can be a source of power for actuators. Much like there are air cylinders, there are also electric cylinders and hydraulic cylinders where the cylinder converts electricity or hydraulics into motion, and hydraulic cylinders are often used in several types of automobiles. Most of the actuators available have more than one type of power source. For example, solenoid valves can have the ability to be powered by both electricity and air. Electricity powers the solenoid, and the solenoid, powered by air, actuates the valve. Another option for this would be that the solenoid can be powered by both electricity and the hydraulics.
Whether in a linear motion, a rotary motion, or in an oscillatory motion, actuators can still be used, that is if they can create the motion with only one direction, in a circular motion, or in an opposite direction at normal intervals. Hydraulic and air cylinders can also be classified as single acting, which means that the energy source that justifies the movement in one direction, and that a certain spring is used for the other direction. Having these interchanged, these cylinders can act as double as an acting cylinder, which means that the energy is used in two different directions. Even if actuators are usually explained in terms of mechanical implements, muscles are often given as an example of an actuator. Energy, which is created by eating carbohydrates, is converted by the muscle, which in this case would be the actuator, and transform it into motion, such as playing basketball.

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Christel Lumabas is part of MEA Inc. team. MEA Inc is a world leading organization that is composed of designers, engineers and manufacturers of valves and actuator including butterfly valve, valve actuators, diverter valve, linear actuator, hydraulic check valve and electric actuator for mechanical and electrical automation systems worldwide. For more information visit http://www.meaincorporated.com

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Electric Actuators: What Is an Actuator?

An actuator is a mechanical device which is designed to convert an electrical signal into a physical action. They are typically used in manufacturing industrial applications and may be used for inflow-control valves, pumps, positioning drives, motors, switches, relays and meters. Actuators are available in different forms such as pneumatic actuator, rotary actuator, linear actuator, electric actuator, piston actuator and hydraulic actuators. Each form is operated by a specific source of energy, for instance, mechanical, electrical and potential energy, stored in compressed liquids or gasses.

From all the actuators that are available in the market, the most common type is a hydraulic actuator or an electro-servo actuator. In order to perform a simple task, fluid power for hydraulic machinery is used. This liquid is known as hydraulic fluid. The liquid is transmitted through hydraulic cylinders or motors and can be controlled by valves. Hydraulic machinery can produce very high amounts of power and wide array of actuators that can make use of this power. Linear actuators possess a piston to set a stroke. In these actuators hydraulic pressure is created by pushing and pulling of the piston from a fixed length and force. The hydraulic pressure is placed on one end which forces the piston to move to the opposite end resulting in the pushing of the rod to extend it. Reversing the hydraulic pressure will cause the rod to stroke back to the original position.

A pneumatic actuator is normally used to compress air as a source of energy which then converts it into motion. Each type of actuator produces specific motion like oscillatory or linear, depending on the type of the actuator. Pneumatic actuators contain a piston, a cylinder and valves or ports. The enclosed diaphragm protects the piston and keeps the air in the upper portion of the cylinder. This construction permits the air pressure to push the diaphragm downward, moving the piston underneath, which is connected to the internal parts of the actuator. Few examples of pneumatic actuators include: grippers, tie road cylinders, rotary actuators, vacuum generators etc. For the effective functioning of actuators, larger size of a piston is recommended because a larger piston would prove more effective if the air supply is low, allowing the same force with a lesser amount of input. SearchMe4 is a local information and online business directory that provides contact details of the UK actuators.

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Electric Actuators: How Are Electromechanical Actuators Performance Rated?

What are electromechanical linear actuators? Well to start to understand the principles you look at how the actuator works. A linear actuator can basically be described as a motor that has bearings and a gear box. There's a separate unit that controls the actuator in its movements, whether it be moving in one way or the other but can only move laterally or as known to most as linearly, which then gives it its name which is quite logical. When these actuators are powered by either AC or DC - most of them do operate with DC, it's relatively easy to identify an electro mechanical. There are different types of actuators and not all run off power. Air cylinders or otherwise known as pneumatic actuators use compressed air to generate the energy needed to move provide the movement power. In most cases these types of actuators are found in smaller applications because of their size and where they are used, maintain them can be awkward so these types of actuators are used. You'll find them in things such as office equipment like scanner, copiers and printers. When looking at electromechanical linear actuators it's no secret that is has developed the production industries of today.

Mass producing has also benefited as well as the packaging and export trade fraternities. Because there are various requirements for each load adjustment, electromechanical actuators are made in certain standard ranges with fixed specs but for instances where there is a unique function required, clients can have their own electro mechanical linear actuator custom made. They tend to assemble on order with such things as parts can be quite expensive and to have a range of unusual actuators lying around can be costly.

When one looks at mechanical linear actuators and electromechanical linear actuators, there is a slight difference. Simply mechanical linear actuators are supervised in operation, and an example of this would be a fork lift. The actuators run from power but its functions are initiated by a control manned by an attendant. Some gantry systems are also included in this category. Electro mechanical linear actuators are virtually the same however, they've been fitted with an onboard control or receivers which interpret signals that will trigger a programmed function, an example of that would be gate automation. 12 volt linear electric actuators are motors running off AC but due to conditions they are designed to convert to DC for reasons including safety. The receiver connected to the electronics is programmed so that upon trigger or preprogrammed terminal, it pulls or pushes the linear arm without supervision.

Elsewhere, electromechanical actuators are used together with a slider crank mechanism. This device has a master fix that has a crank joint angel that conducts reciprocating motion. These motor mechanisms are used in pumps mostly and pistons in cars are another example. In industries of actuators, electromechanical linear actuators and accessories in larger level operations are made by a place called Flowserve and they call them Limitorque actuators. They supply an international market with mechanical engineering science found in big industrial industries. No matter what you need, they can develop a solution for you.
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His dad was a shipping magnet and because of that, Marc and his family had to travel with him constantly.He gained a lot of knowledge through that. With his dad's influence he went into importing and exporting and this kept him on the road. He is settled in one place now and find it most fulfilling in writing articles. View more articles at http://www.linearactuatorsguide.com.

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