An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve. In simple terms, it is a "mover". An actuator requires a control signal and a source of energy. The control signal is relatively low energy and may be electric voltage or current, pneumatic or hydraulic pressure, or even human power. Its main energy source may be an electric current , hydraulic fluid pressure, or pneumatic pressure.
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Rotary ActuatorVIDEO ON THE TOPIC: PEW-PEW! Pneumatic Automation - Industrial Lego
The debate surrounding the pros and cons of electric and pneumatic actuators has been raging for years and still no easy answer exists. Here, with the help of Bimba Manufacturing, we focus on the core differentiators to help narrow your decision. If there is any significant performance differentiator, it is that electric actuators are better known for their high levels of precision.
Though this is not to say pneumatic actuators cannot deliver very precise motion. Again, the issue here revolves around how much precision you really need. For help on this issue, we referred to information from Bob Kral at Bimba Manufacturing Company, a supplier of pneumatic, electric and hydraulic actuators.
According to Kral, the choice of pneumatic or electric actuators involves an evaluation of performance, component costs, system costs, and productivity gains. The two technologies are so different that one cannot be a drop-in replacement for the other. Each has inherent advantages and disadvantages. The case for pneumatic actuators Pneumatic actuators provide high force and speed at low unit cost in a small footprint. As a matter of fact, pneumatic cylinders provide more force and speed per unit size than any other actuator technology except hydraulic.
Force and speed on pneumatic actuators are easily adjustable and are independent of each other. Pneumatic actuators are most economical when the scale of deployment matches the capacity of the compressor. Small compressors are efficient and economical when used to power a small number of pneumatic devices.
Large compressors are efficient and economical when powering a large number of pneumatic devices. While pneumatic component costs are low, maintenance and operating costs can be high, especially if a serious effort has not been made to quantify and minimize the costs. Maintenance and operating costs include replacement cylinder costs, air line installation and maintenance, and electricity for the compressor. According to the Department of Energy, 24 percent of the annual cost of compressed air is due to maintenance, equipment and installation while 76 percent is due directly to the cost of electricity for the compressor.
Determination of the operating cost per pneumatic device deployed in a facility can be eye opening, especially if cost calculations have not been done for a while and the scale of operations has shrunk. The case for electric actuators In contrast to pneumatics, electric actuators provide precise control and positioning, help adapt machines to flexible processes and have low operating cost.
They are most economical when deployed in a moderate scale in processes where their performance advantages can be a benefit and when the electronics are separate from the actuator to segment and minimize replacement costs. Electric actuators consist of a ball, acme or roller screw connected via a coupler to an electric motor.
As the screw turns it moves a piston, which is connected to the rod or carriage. The rod or carriage moves the load. Performance varies depending on materials used.
Commonly used motors for electric actuators include steppers and servos. Brush dc motors and ac motors are sometimes used with limit switches when positioning accuracy is less critical. Step motors are an economical choice for accurate positioning at lower speeds.
However, steppers may lose synchronization with the controller when employed open loop without an encoder or if they are undersized for an application. Servos, by definition, are closed loop and provide superior performance at high speeds, albeit at a higher cost. High precision screws and anti-backlash mechanics can provide accuracies to ten-thousandths of an inch.
Standard precisions with standard components range from a few hundredths to a few thousandths of an inch. Components of an electric actuator include the mechanical actuator that translates motor rotation to linear speed and thrust, the motor, an electronic driver or amplifier to power the motor, and a controller to control motion.
Operating costs of electric actuators are largely due to motor power draw. While component costs of electric actuators are high, operating costs are low. High component costs often deter the use of electric actuators because savings in operating costs compared to pneumatics are often not adequately considered or are outright ignored.
Cost comparison To better compare actual costs between pneumatic and electronic actuators, consider this example: Manual changeovers adapting a production line to a different product can be expensive in terms of both lost production and man-hours required to implement the change. Because electric actuators can substantially reduce changeover costs largely due to the fact that they can retain condition settings , the annual cost savings associated with changeovers must be considered as part of the implementation decision.
See the complete Bimba Manufacturing Company white paper comparing pneumatic and electric actuator options, which provides in depth details on operating cost calculations. Home Products Motion How to Decide Between Pneumatic and Electric Actuators The debate surrounding the pros and cons of electric and pneumatic actuators has been raging for years and still no easy answer exists.
David Greenfield. Examples of pneumatic left and electronic actuators from Bimba Manufacturing Company. Schmidt Couplings Connect Offset Shafts Zero-Max Schmidt offset couplings provide machine designers with a proven method to ensure that machines operate with constant phase accuracy and constant speed throughout the rotation and cycle. Zero-Max, Inc. XZ-Axis Motorized Linear Positioning Stages The XZ series of motorized m linear motion positioning stages feature 1 micron repeatability and 10 micron positional accuracy.
Carlo Gavazzi. Machines that sense the world around them ADI gives cobots the ability to sense, adapt and interpret its surroundings. Our motion detection and machine learning expertise is transforming factory floors. From invention to breakthrough with ADI. ANCA Motion. Anne Marie Mohan. Schneider Electric. Discover the Secrets of a Successful Automation Project Learn about planning and project management, building your machine or automated system, and technologies to improve manufacturing outcomes.
Pneumatic Function Integration on One Controller Though Festo first released its Motion Terminal two years ago, it continues to develop software upgrades that expand its range of capabilities. Aaron Hand. Stephanie Neil. Festo Corporation. Applied Motion Products. Rotary Lobe Pumps Alfa Laval OptiLobe 10 and OptiLobe 50 pumps are now available in four new sizes to meet the requirements of lower flow rates and higher production capacities.
When it comes to selecting encoders for motion control applications, the terms resolution, accuracy, and precision are often used interchangeably. However, they mean very different things and understanding the difference can be critical to your application.
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Pneumatic design 101: Go with the flow
Cylinders with piston rods: as compact cylinders, short-stroke cylinders, flat cylinders, round cylinders, miniature cylinders, cartridge cylinders or stainless steel air cylinders. Specified types in accordance with the ATEX directive are suitable for explosive atmospheres or are made of corrosion-resistant stainless steel and therefore particularly easy to clean. Compact linear actuators with or without guides: mechanically coupled cylinders with optimized mounting options for simple mounting and magnetically coupled cylinders for use as a pressure-tight and zero-leakage system. Compact quarter turn actuators with minimum space requirements and adjustable swivel angle, also available as a twin piston rotary actuator.
PNEUMATIC COMPONENTS FOR INDUSTRIAL AUTOMATION
It offers several mounting accessories, and there are optional magnetic sensors. Offered in Stroke : 50 mm - mm Force : N - N. Hydraulic shock-absorbers not supplied with M It has 6 integrated air leads for compressed air distribution not supplied with M Optional magnetic sensors.
ASL is a UK based company specialising in the supply, design and manufacture of quarter turn actuator packages. We are also the exclusive UK agents Specialists in the supply of pneumatic components and process valves. We supply air cylinders,control valves,steam valves,piston valves,tube and tu L Pneum Festo - the innovation leader in automation. Festo is close at hand for its , customers worldwide. Its 11, staff help these customers achi Parker Hannifin is the world's leading diversified manufacturer of motion and control technologies and systems. Parker provides precision-engineere
Industrial Automation Products. Pneumatic and electric automation products from actuators to servo motors to sensors and valves. Process automation Products.
Moreover, electric actuators are easy to integrate, freely programmable, and require much less maintenance than pneumatic actuators. IAI is a leading manufacturer of innovative electric actuators and industrial robots with more than fourty years of experience in developing, designing and manufacturing. The comprehensive portfolio includes: linear axes, grippers as well as cartesian robots, table top robots and SCARA robots. We advise you comprehensively and individually. Convince yourself and test our actuators 30 days for free! Read more … New modular position controller. IAI Industrieroboter is expanding the range of fully-programmable electrical grippers. New additions are a two-point lifting magnet gripper for small part assembly and a long-stroke gripper for large workpieces. For automated machine assembly work IAI presents a new product generation of servo presses.
SMC has a range of 12, basic models and over , variations to respond to day-to-day automation needs. Our experts are always on hand to provide the necessary technical support and guidance. With european stock to give a quick response to our customer's requirements. SMC supports various industries with specific solutions and teams of experts who keep up to date with the laws, regulations and precise requirements for each industry. Here we have gathered all the information you need in order to stay on top of everything happening at SMC. SMC is pursuing worldwide customer satisfaction and supporting automation through the most advanced pneumatic technologies. The healthcare industry is one of the world's largest and fastest-growing industries. Powertrain machining and assembly requires the convergence of many automation technologies. In addition, our portfolio ranges from customer-specific air preparation solutions and circulation control systems via components for manipulators and handling systems to valve technology with all common bus models as well as special products for conveyor technology. Beside our wide-ranging portfolio of standard components, the development of customized high-tech solutions is a very central part of our scope of capabilities.
Electric Actuators for Your Automation Requirements
In SUDE has developed with his vision who is a technocrat in Valve Automation Industry and initially started with smaller automation and later on turned to be a System Integrator in Valve Industry along with the manufacturing of Dampers [from smallest to heavy duty] having a SSI unit at Pune, and manufacturing Electrical Actuator under the brand name of Sdtork also located at Pune and manufacturing Basis Weight valve under the brand name of Kriss Instrumentation located in Bangalore. We try to maximize the customer satisfaction on the stand point of our customers, by corresponding to demands from various customers and developing application. Our philosophy as a company has been always distinguished by the quality of our products and the service to our customers i. Sdtork Controls Pvt. The basis weight valve made by Kriss are used in Indian Paper Industries as the direct import substitute items. Cost wise they are almost half of the imported products and maintenance and quality wise on par to the imported products, in fact we proudly announce Kriss Instrumentation is a saver of foreign currency in India. The credential list along with Catalogue of Kriss and Sdtork can be submitted on request.
Pneumatic Cylinders & Actuators
The Group offers MerSETA-accredited training programmes and courses for hydraulics, pneumatics and automation aimed at various degrees of specialist operation. We also offer eLearning programmes. Omal pneumatic actuators are accurately designed and engineered, and have a state-of-the-art production line dedicated to their fabrication.
Linear Actuators. We make the controls for ball valves, butterfly valves, Beck drives, electric linear actuators. A linear motor actuator that is developed to respond to the long-stroke, high-speed, and high-precision requirements as the manufacture equipment is made larger and the speed of the transfer equipment inside the factory is made faster.
Products and technologies
Hadapsar, Pune No. Pune, Maharashtra. Bhosari, Pune Plot No.
SAMSON Manufacturing Group
We bring together highly specialized companies that develop and manufacture control valves to meet all requirements, from forged ball valves to bypass valves installed in steam turbines. A s a result, we are able to provide the entire control technology from a single source to comply with the requirements set by complex projects and unusual control challenges. From rugged self-operated regulators to highly specialized control valves for industrial processes, our broad product range includes valves to meet all requirements.