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What’s the Difference between Pneumatic, Hydraulic, and Electrical Actuators?

White Paper by Carlos Gonzalez | Machine Design  originally posted April 16, 2015

A linear actuator moves a load, which can be an assembly, components, or a finished product, in a straight line. It converts energy into a motion or force and can be powered by pressurized fluid or air, as well as electricity.

Here is a breakdown of common linear actuators, their advantages and their disadvantages….

Click on the link below to download this article in .PDF format

PDF Article: What’s the Difference between Pneumatic, Hydraulic, and Electrical Actuators?

Ball Screw Maximum Compression Load

A compression load is a force that tends to compress, or buckle a ball screw shaft.  If a compressive force is applied to a screw that exceeds its column strength, the ball screw will bend and cause premature or permanent failure.  This can happen in either horizontal or vertical applications.  In some cases, you may have to select a more rigid end support housing arrangement, and/or a larger diameter screw in order for the ball screw assembly to withstand your compression load.

Ball screw compression-loads

If a sufficiently heavy load is applied to a nut with a long ball screw in a horizontal application, the ball screw could buckle.  In a vertical application, if a fixed or rigid motor driven housing is mounted below the ball screw, the ball screw weight and load weight could buckle the screw.  Therefore, in a vertical application, installing the motor driven support housing above the ball screw puts the ball screw assembly in a tension mode, while the bottom end support bearing is free to “float axially” and is used only to guide the end of the screw.  By loading the screw in tension, most of the time you avoid any compression load issues, and only need to be concerned with the load capacity of the nut and end support bearings.  However, in some vertical applications with the ball screw mounted in a tension mode, you will have to be concerned about compression loads if you have a reversing force that exceeds the load weight being moved.

Information on Lintech’s Family of Ball Screws can be viewed at the following webpage-
Lintech Ball Screw Product Information

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

Tags:  Ball Screw, Lead Screw, Roll Thread Screw, Lintech, Electromate

maxon presents new High Torque DC brushless motors

For applications demanding very high torque, drive specialist maxon motor is now launching its EC-i 40 DC brushless motor in a High Torque version.  The iron-core internal rotor drive is available with a diameter of 40 mm and delivers up to 234 mNm of torque.

maxon's new EC-i 40 DC brushless high torque motor

maxon’s new EC-i 40 DC brushless high torque motor

When it comes to powerful movements, maxon delivers with its EC-i 40 High Torque series of DC motors.  The Swiss drive specialist presents three powerful iron-core internal rotor drives.  The drives have a diameter of 40 mm and are equipped with an innovative rotor.  They feature high dynamics, a low cogging torque, and extremely high output torque.  The strongest motor in this series offers a maximum nominal torque of 234 mNm and is 56 millimeters in length.  It exceeds the performance of its precursor model by up to 70 percent.

Especially suitable for robotics

The three new brushless DC motors are cost-effective and ideally suited for applications in robotics, prosthetics, and industrial automation.  The compact design offers a great solution in applications with extreme space constraints.  When needed, the EC-i 40 High Torque motors can be combined with maxon gearheads, servo controllers, or position controllers.  The EC-i 40 series is easily configured and available in our online shop. Shop.maxonmotor.com

Additional information and technical data is available by contacting maxon at sales@electromate.com.

For more on maxon, visit http://www.electromate.com/products/?partner=1072297493 .

Tags:  maxon, maxon motors, Electromate, EC-I 40, BLDC motor, brushless motor, servo motor, automation, DC motor

Mechatronics: Industrial Automation Webinar

Mechatronics Webinar Snippet

View archived webinar

Originally recorded on 11/19/2014  by DesignNews

Industrial automation continues to benefit from the fruits of the mechatronics industry, namely the increasing inclusion of electronics within the traditional mechanics.  However, as this integration grows stronger, more smarts are needed from the design team to ensure that the mechanics are taking full advantage of all that the electronics subsystem has to offer.  In the industrial automation space, some of these terms and technologies are less well-known.  Never fear, as we’ll discuss these topics in detail on this webinar, ensuring that you can maximize the mechatronics technologies that are at your disposal.

RSA high-force actuator: Withstands harsh environments

Designed for durability and longevity, the RSA electric rod actuator is an ideal alternative to pneumatic or hydraulic actuators. With guided loads up to 12,900 lbf (57.3kN), optional IP67 and choice of screw technologies, the RSA is built-to-order in stroke lengths up to 60 inches.

Features of HT Option for Tolomatic's RSA Actuator

Features of HT Option for Tolomatic’s RSA Actuator

WHY CHOOSE THE HT OPTION?

• Higher strength components transfer torque from the gearhead/motor through the actuator
• Grease zerk allows convenient relubrication for extended screw service life
• Allows convenient addition of gearbox to RP (Reverse Parallel mount) actuator
• Accommodates mounting large motors with up to 165mm bolt circle pattern

Click on the link below to view the specification on these models-

http://www.electromate.com/products/series.php?&series_id=101882

For more information, please contact:

EDITORIAL CONTACT:

Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

Tags:  Linear Actuator, Tolomatic, Electromate, RSA-HT, Actuator, RSA series

DC Servo Motors Made-To-Order: The Selection Just Got Bigger

maxon expands its configuration program

maxon motor’s successful X drives program is being expanded to include a new motor size and different planetary gearheads. Putting together the right DC drive assembly online has never been so easy.

maxon’s revoluntary X drives of DC motors and gearheads offer customizable choices that are easily and quickly configured online. They are stronger and more efficient than other drives currently available. The product line is now being expanded to include the DCX 12, a micromotor with a diameter of 12 millimeters to close the gap between the DCX 10 and the DCX 14. It is available with precious metal brushes as well as various options for ironless windings and bearings. The matching planetary gearhead (1–4-stage) is also now available.

New versions of configurable planetary gearheads

maxon expands its online configuration program

maxon expands its online configuration program

What’s more, existing gearhead sizes can now be obtained with several new reduction ratios: GPX 14 (new 3 and 4-stage), GPX 16 (new 4-stage), and GPX 37 (new 1 and 2-stage). The planetary gearheads with the sizes 14, 26, and 37 millimeters are also available in ceramic, reduced-noise-level, and reduced-backlash versions.

All the new products are now available in the online shop. Customers choose the desired motor, the matching winding, brushes, and shaft length, as well as the gearhead and encoder. The order is ready for shipment after just 11 days. You can find more at: xdrives.maxonmotor.com.

Tags:  maxon, maxon motor, Electromate, DCX, Servo Motor, BLDC Motor, Brushless Motor, GPX, ENX

Servo Solutions for Mobile Automation Challenges. On-Demand Webinar

YouTube Video-  57minutes

With automation expanding out of the factory, machine builders are faced with a varying set of new challenges. Mobile platforms, such as unmanned systems, are expected to operate in extreme environments and carry their own power source; all while being light weight and compact.

To meet the current and future needs of the market, enabling technologies need to be applied and discovered. At the forefront of the enabling technologies are servo drive controllers.

Servo controllers not only make a robot or mobile platform move, they can also be solutions to the other design requirements. A servo is an integral component to any mobile solution and can help with power efficiency, communication, agility and dexterity. This webinar will touch on the challenges presented to robot designers and how servo drives can make them successful.

Webinar Presenter: Shane Beilke, Advanced Motion Controls: Executive Team – Product Strategy

Click on the link below to view this webinar.

Tags:  AMC, Advanced Motion Controls, Mobile Automation, Bots, Mobile Robotics, Servo Controllers, Automation, Motion Control, Mobile Systems


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