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Posted by Aaron Dietrich on Tue, May 02 2017 @ 8:30 AM

Machine design, FSMA, and electric rod actuators

What a machine designer needs to know

Machine designers who serve the food processing industry face a huge opportunity.  Purchases of equipment are expected to grow 7% a year to around $70 billion by 2020.

Not surprisingly, consumer demand is fueling this growth, but equally important in the U.S. is the Food Safety Modernization Act or FSMA.  This legislation requires that food processors be proactive on food safety, that is, they must identify potential hazards and mitigate them.

A major result of the FSMA has been stepped up cleaning requirements and increased demand for hygienic equipment. That equipment needs washdown-ready components like electric rod actuators.

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Posted by Aaron Dietrich on Tue, Apr 18 2017 @ 8:30 AM

Go long! Selecting a long stroke electric linear actuator

Some linear actuator application requirements mean you have to go long. Long stroke, that is. Length of stroke is a critical factor in electric linear actuator selection. While some applications require moves of just inches or a few feet, others require moves of 10 feet or more. For an application requiring this kind of long stroke linear actuator, a belt driven rodless electromechanical actuator will be your solution.

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Posted by Bill Graber on Tue, Mar 21 2017 @ 8:31 AM

Lightweight servo actuators lower robotic RSW costs

Buyers want sturdy, well-built cars, so the quality of welds that hold auto bodies together is crucial to vehicle manufacturers.  Manufacturers want strong welds that are consistently and accurately placed so the finished car looks both durable and attractive.

Welding robots for resistance spot welding (RSW) have been a boon to auto manufacturers because they provide consistent weld placement.  But all welding robots need actuators to carry and power the weld gun. Those actuators have a huge impact on the consistent quality of welds. They can also impact the cost of robotic resistance spot welding.

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Posted by Aaron Dietrich on Tue, Mar 07 2017 @ 8:33 AM

Roller screws for high force linear actuators. What type’s best?

Selecting the best screw type for a high force linear actuator can seem a daunting task, but it doesn’t have to be. Start with our Guide on the three common screw types for electric actuators, their advantages and disadvantages. 

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Posted by Nick Holmgard on Tue, Feb 21 2017 @ 8:30 AM

Electric linear actuator speeds up changeovers, lowers TCO


Time is money, as the saying goes, and it’s especially true in manufacturing. Reduce the time a process takes and you save operating costs. The concept of total cost of ownership (TCO) considers issues beyond a component’s purchase price like the downtime and labor costs associated with changing production set-ups.

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Posted by igor Glikin on Tue, Feb 07 2017 @ 8:30 AM

Acme, ball and roller screws for electric linear actuators

When you’re specifying a screw-driven electric linear actuator, you’ll need to consider the type of screw that best meets the needs of your specific application. Some manufacturers give you a choice so you can tailor the device precisely, and that’s a good thing since applications differ widely.

The basic types you’ll have to choose from are roller screws, ball screws and acme screws.  There’s quite a lot a machine designer needs to know about these electric actuator screw types and how to select the right one.  We offer a guide that helps your decision-making.

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Posted by Aaron Dietrich on Tue, Jan 24 2017 @ 8:00 AM

Machine design, clean in place (CIP) and linear actuators

Keeping clean is important, right?  Well, in food and beverage processing and pharmaceuticals manufacturing keeping equipment clean is essential.  Cross-contamination among batches causes problems, and food or beverage residue can grow harmful microorganisms. Many plants have clean in place (CIP) systems that deliver cleaning tailored to the needs of the facility including cleaning action (force, turbulence, direction), timing/duration (when, how often, how long), temperature, and type/strength of cleaning agent.

When you design equipment for these industries you need to keep cleanability in mind.   Even components like electric linear actuators must stand up to cleaning procedures.

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Posted by Aaron Dietrich on Tue, Jan 10 2017 @ 8:30 AM

Ball and roller screw linear actuators: How to compare service life

When you’re designing equipment, you'll probably be asked, “How long will this machine last?” And even if you’re not asked outright, you know service life is an essential consideration. It’s a critical factor you consider when sourcing components.

Electric linear actuators are important components in many machines, and the “how long will it last” question is a familiar one. If it’s a ball or roller screw actuator, you can use a formula to help estimate life based on load – the same formula used to estimate bearing life. 

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Posted by Nick Holmgard on Tue, Dec 13 2016 @ 8:30 AM

Corrosion resistant integrated linear servo actuator is high force

The electric rod actuator is an industrial workhorse, one you’ll find in a wide range of machine tool, conveying and positioning applications.  A familiar mechanism, yes. But identifying one that’s compact, corrosion resistant and can deliver high force is a tall order. A corrosion resistant integrated linear servo actuator can be the answer.

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Posted by Aaron Dietrich on Tue, Nov 29 2016 @ 8:30 AM

Hydraulic vs high force electric linear actuators: new infographic

Choosing the best linear actuator for a task takes a thorough understanding of the application. The basics like the weight of the load, the distance the load’s to be moved, and the speed and force needed are all important factors. A machine designer may also need to consider variables like environmental conditions, data collection and reporting,  as well as flexibility/programmability requirements.

If the application calls for a high force linear actuator, the usual solution has been a hydraulic cylinder. However, high force electric linear actuators are now available  (many with roller screws) and offer distinct advantages. Our new infographic compares the performance of electric, hydraulic and servohydraulic actuators on intelligence and operational parameters.

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