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A new RSH electric hygienic rod-style actuator from Tolomatic delivers clean, continuous control to automation machinery. 

Download theTolomatic e-book: A Resource on Electric Linear Actuators: What a machine designer needs to know

The all stainless steel ERD actuator from Tolomatic with protective motor enclosure (ERD-SS2) accommodates both servo (23-frame) and stepper (NEMA 17 and NEMA 23-frame) motors.  Combine any ERD-SS2 with the Tolomatic ACS servo or stepper drive and get a complete motion control system with high performance at a very competitive price.  

Estimating how long a piece of equipment will last in an application is critical information in the specification process. This step-by-step guide examines how to estimate the life of an electric actuator, utilizing ball or roller screw technology, in applications that require constant or varying (changing) loads.

In addition, you will learn how to calculate life in units of time (days, years, etc.) and how to compare the expected life of two different solutions.

For more information, please contact:

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

When you need to specify a linear actuator, you want to do it right.  Some basic decisions come first.  Like electric or pneumatic.  See Tolomatic’s recent blogpost for an overview of the advantages and disadvantages of pneumatic versus electric linear actuators.
If electric is selected, you’ll next need to decide if a rod or rodless linear actuator is the best choice.  Tolomatic offers both types of electric linear actuator, so you can count on us for motion control advice and application expertise.

Selection tips

Here are our tips for specifying the right electric linear actuator for the task.

1. Calculate size for electric, rather than fluid power  When using an electric linear actuator don’t fall into the common fluid power practice of oversizing the cylinder. Pneumatic linear actuators are usually lower cost so a bigger cylinder won’t blow the budget.  However, oversizing can be costly when specifying an electric linear actuator since the purchase price may be higher.  Take...

PowerPoint Presentation by Gary Rosengren, Director of Engineering at Tolomatic

The lead screw is an essential component in many electric linear actuators.  When selecting the type of lead screw a linear actuator should have, you need to strike a balance between purchase price and performance characteristics to get full value.
This new slideshow from Tolomatic shares the advantages and limitations of acme, ball and roller screws (the three screw types used in linear actuators.)  The slideshow also describes the application characteristics most suited to each screw type.

Acme Screws

Acme screws have a trapezoidal tooth form that’s very strong.  They come in a variety of leads and diameters to fit many electric linear actuator applications.  Nuts can be made from metals (which require lubrication to overcome friction) and self-lubricating plastics.
Acme screws operate quietly and are usually low cost.  They can be very inefficient because they need high motor torques to drive...

Source:  Tolomatic Blog.  Originally posted by Gary Rosengren on Tue, Apr 22, 2014 @ 08:39 AM

Motion system designers often need to evaluate competing components to select the best one for an application.  For linear actuators and other motion system components, the decision generally comes down to which product will provide the longest service life given the specifications of the project.

Manufacturers give you performance data which can serve as guidelines for componenselection and use.  Keep in mind, though, this information is for the individual component only and may not relate directly to the configuration and conditions of your application.

When you’re comparing data from different manufacturers, be sure you’re comparing apples to apples.  For linear actuators you may need to normalize the data of all the rolling elements (such as the ball screw or roller screw) as well as the linear bearing components in the system to the same Basic Rating Life (L₁₀)

Basic Rating Life...

New YouTube Video-   54:01 min.