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Guide to Actuators

Get precision movement with the right linear actuators to keep production going


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Actuators are typically physical components in automated machinery that controls movement. In some cases, this entails initiating movement within tight parameters; in other applications, actuators restrict movement.

Typically, a motor attached to a ball screw or an acme screw system drive non-electric actuators. The drive method may be by way of a gear or belt, depending on the application. There is also the pneumatic actuator. Industrial actuators sometimes feature a motor encoder and linear position feedback, as well as limit switches.

Here are some of the primary parameters to consider when selecting industrial actuators:

1. The load the actuator must move

2. The stroke, which is the length between the 2 most extreme positions of an actuator

3. The speed at which the actuator moves

4. The amount of backlash that occurs when the direction of motion is reversed


Action Steps
The best contacts and resources to help you get it done

Shop from actuator suppliers with the widest selection


There are many types of actuators and they are precision components. To get the best result, get just the right actuator to do the job by looking to industrial actuator suppliers that offer the biggest stock. Alternatively, be willing to look at a number of websites.

I recommend: For an electric linear actuator, go to Duff-Norton. Firgelli Automations has a nice selection of several types of actuators, including track actuators. Grainger, however, has a tremendous selection of almost all types of actuators, even the pneumatic actuator and actuator valve, and they keep their prices low.

Get specialized actuators


Some applications call for actuators to drive needle valves or even perform more than one movement. Not every company is equipped to manufacture such a specialized product.

I recommend: Hanbay is an excellent source for an electric actuator or an actuator valve. They will even custom make valves with actuators. Omegamation also has some actuators and accessories that are not as easy to find on other websites.

Maintain and repair your industrial actuators


Actuators work hard and they are often designed to operate within tight limits. They are among the most vital components in many types of machinery. Keeping your actuators well maintained and getting broken actuators repaired quickly is important to your business.

I recommend: The best solution is to have a quality engineering and repair team on hand. But when you need parts or a solution that your own team can't provide, go straight to Actuator Specialties, Inc. They are open 24 hours a day, 7 days a week and even carry out-of-date parts. Georgia Western is another good source for parts.

Tips & Tactics
Helpful advice for making the most of this Guide

  • If backlash is a potential issue, then ball screws are preferable to lead screws on actuators, due to their low friction and high efficiency.

The official source of Actuators is the Actuators page at Business.com


Featured Vendors

Actuators
Provider of automated and manual valves. Categories include ball, butterfly, plug and integral (valve/actuator), as well as accessories.
www.assuredautomation.com

Actuators Resources
Find Actuators. Search listings and reviews of retailers, specialists and services in your area.
JustClickLocal.com

Clippard: Actuators
Provides a line of miniature pneumatic products, including air cylinders, electronic and control valves, tubing, hoses, fittings, and modular valves.
www.clippard.com

Techna-Tool: Actuators
Supplies reliable tool monitoring systems to high production metal cutting manufacturers, including monitoring of actuators.
www.techna-tool.com

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