Industrial Vibrator Beat

How Vibration Helps Improve Dust Collection Systems

Mike Stratis

When it comes to collecting dust created from a production line at a facility, it is critical to clean the existing and recently collected dust out of the collection equipment on a regular basis. One of the methods to remove the collected dust is with the help of vibration. Where the vibration is applied, though, depends on the collection system installed. The common installations that we see are:

• Electrostatic Precipitators (ESP)
• Baghouses
• Cyclones

First, the electrostatic precipitators. These are large systems that are frequently found at facilities like pulp and paper or steel mills, refineries, concrete plants or coal-fired power plants, just to name a few. These systems have a series of wires and plates that act as filters. Read More…

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Can You Operate 460/3/60 Industrial Electric Vibrators at 380/3/50?

Jack Steinbuch

I’ve noticed an increase in requests for operating stock U.S. rotary electric (motor) vibrators that are wound for 460/3/60 power overseas where the power is often 380/3/50.  The answer to the question is yes and there are two options available.

First, is the realization that you can operate a 460/3/60 vibrator using 380/3/50 power.  My understanding is that the reason it works is due to de-rating the higher voltage 60 Hz motor since 50 Hz power rotates the eccentric weights at a lower RPM (rotations per minute) by a factor of 50/60.  For example, an 1800 RPM vibrator would run at 50/60 x 1800 = 1500 RPM.

This same logic can also be applied to the voltage.  So, a 460 volt motor would be de-rated to 383 volts by multiplying the 60 Hz voltage by the same factor of 50/60.  Therefore, due to 50Hz input, a 60Hz vibrator will accept 380 volts ± 10% without jeopardizing the motor.

However, it is very important to recognize that since the eccentric weights are rotating at a lower RPM, the force output will be reduced by roughly 30%.  Read More…

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4 Construction Features to Consider When Choosing Rotary Electric Vibrators for Vibratory Equipment or Material Flow Applications

Craig Macklin

Have you ever had someone try to push you over from your side?  I recall skiing with my big brother once when we were kids.  We had gotten off the chair lift and were stopped at the top of a run, getting ready to head down.  I was standing with skis closely together in parallel, hands off my poles as I adjusted my goggles. Big brother gave me a push on my shoulder from the side, perpendicular to the direction of my stance and skis.  I tipped right over.  There was nothing I could do about it.  It was hilarious… at least it was to him and everyone watching me flail about wildly on my way down.  Had I positioned my skis and stance wider and center of gravity lower, I could have avoided this embarrassing failure.

rotary electric vibrator, eccentric weights

Figure 1. Rotary Electric Vibrator Shaft

Such is as it is with Rotary Electric Vibratory Motors.  Imagine for a moment that you have a long bar going right through your solar plexus and out of the middle of your back.  Now that you are over that painful thought, imagine that at each end of the bar, there is a weight dangling from rope and swinging around that bar.  Those weights are pushing you in every direction perpendicular to your feet and stance. You are now a Rotary Electric Vibrator! Can’t quite get the mental picture? Check out the photo to the right to see what I am talking about. Read More…

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How to Choose the Best Truck & Trailer Vibrator(s) Based on the Material You’re Hauling

Mike Stratis

Are you hauling a sticky material, such as DDG or soybean meal, in a hopper bottom trailer? Maybe carrying gravel or asphalt in a dump trailer? What about fertilizer in a v-body spreader?

The reason we ask this information when working with clients is because the material characteristics play a major role in determining the best type of vibrator to help quickly and safely unload the trailer. There is a big difference between unloading sticky DDG’s from a hopper bottom trailer compared to cleaning out the hopper bottom that was carrying whole potatoes or other free flowing materials like corn and wheat. Read More…

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Tighten Those Bolts!

Mike Stratis

If you happened to take the time to read Craig Macklin’s blog, about the expectations for maintenance of the pneumatic vibrators, then you’ll have a good base of knowledge on how to keep those units running efficiently. This time, we’ll take a deeper dive into the importance of tightening the mounting bolts used for installing the vibrators themselves.

On the pneumatic piston vibrators, the proper bolt torque is critical. Because of the tight tolerance held between the outside diameter of the piston and the inside diameter of the bore of the casted body, the vibrator needs to air piston vibrator, nuts and bolts on pneumatic vibratorbe rigidly bolted in place to allow for correction operation so that only the piston is moving inside the vibrator. If the bolts are loose, even slightly, the vibrator body will “rock” back and forth on the mounting channel. Once this starts happening, failures or seized pistons can happen.

Why does this happen? The reason is, the piston will still try to move in a pure linear direction but if Read More…

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Properly Size an Industrial Vibrator on a Bulk Barge Hopper in 3 Easy Steps

Mike Stratis

When it comes to unloading dry bulk bins, hoppers or vessels, we all know time is money. The more efficiently a job is done, the more time becomes available to take on new projects. More projects, equals… well, you get it.

One of the options available when it comes to material handling and unloading dry bulk barge hoppers or vessels is vibration. These externally mounted pneumatic or electric devices, when properly sized and installed, appropriately flex the bin or hopper wall to break free rat holing, bridging, caking or sticking material. With the assistance of the Cleveland Vibrator Selection Guide, the vibrator sizing process can be simplified and help increase successful installation. Read More…

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The Evolution of Industrial Vibrators: From Pneumatics to Electric Powered Vibrators in the 20th Century

Glen Roberts

The Cleveland Vibrator Company started manufacturing air operated vibrators in 1923 and for several years air vibrators is all we pretty much offered. This worked well in our primary foundry customer base through the first half of the 20th century. As we expanded our customer base, we found more and more customers wanting to use electrical power to operate the industrial vibrators. It became obvious that we needed to give our sales staff an alternate source besides air to offer our valued customers.

88-mc-2-electromagnetic-continuous-duty-vibrator-aid-large-chain-of-bakery-plantsWe started with fairly basic electromagnetic vibrators with the MC-1, MC-2 etc. and started to introduce these units into the market place. The MC series is considered the “grandfather” to our current CM-5, CM-10 and CM-30 and more recent Super 30 vibrators. You can see a success story of this product in the field in the case study on the right hand side of this paragraph. In the early 60’s, we contracted with a company from Sweden called Dynapac to market and sell their rotary electric vibrators mostly here in North America. They were supplied in 1800 RPM and 3600 RPM (revolutions per minute) which opened the door to customers having hoppers, bins, chutes, bunkers as well as other applications which include vibratory tables, feeder and screeners. Read More…

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Let’s Clear the Air on Vibratory Drives for Hazardous Locations

Jack Steinbuch

Over the years I’ve received a number of requests for vibrators or vibratory equipment that need to operate in a hazardous location.  Most requests include the classifications they are either given or think they need, but often aren’t familiar enough with them to know what their application may really require.  I believe for vibrating motors especially, that most confusion stems from recognizing the difference between dust tight and explosion-proof construction.

Our challenge for these applications is to clarify the classification being requested and offer possible alternatives to meet them.  First, to my understanding, pneumatic powered drives are acceptable for any hazardous location. You only need to be concerned if you use an electric activated valve to start/stop it, to make sure it meets the classification of the hazardous area.

hazardous-environments-class-description-cleveland-vibratorThere is a considerable amount of data for classifications, but I referred to an article which I felt handled the topic in a very informative manner.  They started by defining the Class or type of material present as specified by NEC (National Electrical Code) and CEC (Canadian Electrical Code). Class I location is specified as a location containing flammable gases or vapors. Class II locations contain dust that is Read More…

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What to Expect for Maintenance of Pneumatic Vibrators

Craig Macklin

As my incredibly knowledgeable associate Mike Stratis just provided a posting about accessories to consider for your installation of a pneumatic vibrator, I thought I would provide a follow-up piece to discuss what to expect AFTER the install. As with any equipment, pneumatic vibrators and their supporting accessories do require some love, attention, lubrication and cleaning from time to time. Here is what to expect if you want to get the longest and most consistent life out of your pneumatic vibrator, whether a piston, turbine or ball.

Air Piston Vibrators 

Cleveland Vibrator Pneumatic Piston Vibrator Group ShotLubrication – First and foremost, check your lubricator with some frequency.  If you operate continuously, you might check and/or refill every 1-3 weeks.  If your use is intermittent or infrequent, you might schedule on a 1-4 months.  The use of internal coating in the vibrator can reduce or remove the need for lubrication.  But, coatings without the use of lubrication will typically wear out faster than a coated or uncoated piston vibrator that is properly lubricated.  Depending on size and duty cycle of your vibrator, you might use a pint of lubricant (we recommend our MXR-12 VibraLube, which is 10W-NR) every 2 weeks to 2 years. Read More…

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What Are the Costs Associated with Installing Pneumatic Vibrators?

Mike Stratis

When it comes time to review solutions to the material flow problems inside the hopper, pipe or chute, there are a few things to keep in mind when putting together a budget for the project. Besides the vibratory flow aid itself, there are additional components required before installing the unit. We will discuss these items and estimated costs to acquiring these components. Here is the short list:

  1. Industrial Vibrator – pneumatic piston vibrator, single impact air knocker, pneumatic turbine vibrator, pneumatic ball vibrator
  2. Safety cable
  3. Mounting channel or plate
  4. Hose to connect vibrator to on/off valve
  5. On/off valve
  6. Hose to connect on/off valve to air prep component (filter/regulator or filter/regulator/lubricator)
  7. Lubricant (if necessary)

Depending on the size of the hopper or piece of equipment that the pneumatic vibrator is going to be installed on, the price of the vibrator itself can range from about $100 to as much as $10,000. But, within that range, vast majority of the units are going to be between $100-$1000. Read More…

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