performance specifications vibrators

Jack Steinbuch

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

Jack Steinbuch
test

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…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
David Strong

How to Adjust the Eccentric Weight on Rotary Electric Vibrators

David Strong
test

In a recent blog I talked about the importance of “Counter rotation and synchronization” in the successful operation and maintenance of a piece of Cleveland Vibrator Company’s vibratory equipment. In that blog I briefly touched on the procedure to be followed when adjusting the eccentric weights on a rotary electric vibrator.  The procedure to set the weights correctly is rather straight forward but given how critical the proper set up is to the operation and the longevity of the unit to which the vibrator is attached, I decided to devote some additional time to this topic.   This will give me an opportunity to go more in depth with a step by step procedure.

First a bit of math to help get a better understanding of the importance of the weight setting and its impact on the operation of the vibrator itself and more importantly on the piece of equipment.  Any type of rotating vibrator, that includes rotary electric (RE), ball vibrators or turbine vibrators generate their “vibratory force” by rotating a mass about the center of the unit or shaft in the case of a rotary electric vibrator.  The force produced is dependent on three parameters:

  1. Weight of the rotating mass
  2. The distance of the center of gravity of that mass from the center of rotation and
  3. The rotational speed

Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
Mike Stratis

110v/60hz Vibrators, 3 Options: When to Choose Electromagnetic Vibes

Mike Stratis
test

The Cleveland Vibrator Company first opened in 1923. During the past 92 years, the flagship product for our company has been the pneumatic piston vibrator. However, as the industry has changed, our product offerings have been required to adapt to the customers’ requests. We have three options available for the users who require a 110v/60hz vibrator, which include:

Electromagnetic Vibrators
(CM product line)
Electromagnetic Vibrators

Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
David Strong

Self Help: How To Check If Your Rotary Electric Vibrators Are Working Properly

David Strong
test

Counter Rotation and Synchronization.

The Cleveland Vibrator Company manufactures a complete line of vibratory equipment.  The product line includes a variety of vibratory table configurations including flat deck, FA, vibratory grid tables, GT, and vibratory belt tables, BT, along with Electro-mechanical feeders, EMF and Electro-mechanical screeners, EMS, units.  The majority of these units, perhaps 97% of what is built and sold, are of the general “Brute force” design type.  This broad design category is based on the principles of counter rotation and synchronization when applied to two electromechanical rotary electric vibrators.

Counter Rotation – Brute force units require the use of two rotary electric vibrators.  When mounted to a rigid structure the two vibrators will “sense” the presence of the other vibrator and make an effort to run together at the same speed.  To produce linear force with two vibrators, which when operated alone produce a rotational or centrifugal force vector, the pair must run together and Counter Rotate.  When mounted side by side and viewed from the end, one vibrator must run clockwise and the other vibrator must run counter-clockwise.  In typical applications it isn’t important which vibrator runs in which direction, it’s just critical that the two run in different directions.  When running properly and in opposite directions, the forces produced by the two vibrators cancel each other except for two times in a cycle with the eccentric weights of the vibrator both point in the same direction.  With the Cleveland Vibrator line of three phase powered rotary electric vibrators, changing the direction of rotation on one of the vibrators is as simple as “flipping” two of the power legs of the vibrator.  Refer to the attached diagram regarding counter rotation and force cancellation. Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
Mike Stratis

No Lube? No Problem.

Mike Stratis
test

Here at the Cleveland Vibrator Company, we are constantly looking to help solve a customer’s problem. That problem could range from breaking up bridging material in a hopper, deblinding a screen deck, compacting dry bulk products or anything in between. Regardless of the processing line hurdle, we have the experience to assist.

Since 1923, the flagship product line for our company has been the pneumatic piston vibrator. In the 90+ years of manufacturing here in Cleveland, Ohio, a few new kids have entered the block…the vibratory material flow aids block, that is. As with any industry, applications change over time. In our world, a few that come to mind are the food and pharmaceutical projects. As our country has progressed with health standards and regulations, manufacturing facilities have had to adapt products to meet the needs for the evolving problems. The change we are going to focus on here is the elimination of lubricant, oil or grease in the air lines at processing plants. Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
Glen Roberts

Customer Service is Not a Department, It’s an Attitude.

Glen Roberts
test

I was processing a very nice order from one of our resale accounts in Texas and it reminded me of how we lost then re-acquired them and they have now become one of our better accounts. They started with Cleveland Vibrator back in 1994 and would order industrial vibrators here and there up to 1999, then simply vanished off our radar. Seven years later, in 2006, they contacted our marketing person at that time about purchasing weight covers for Rotary Electric Vibrators. I believe these motors were used on dewatering screeners. From what it would seem, one of our competitors would not supply this company with the weight covers and only wanted to sell them the complete drive motor. This simply doesn’t work since the weight covers serve two very important functions. One is to keep impurities and foreign matter out of the electric vibrator, not allowing the accumulation of the matter on the weights. Two, the covers act as a safety shield from anyone coming in to contact with the rotating eccentric weights. Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
Glen Roberts

#MFGis: The American Worker

Glen Roberts
test

Made in America, American Made, Made in the USA and my favorite Made with American Pride. We have all heard these words or seen them affixed to many great products manufactured by the greatest workforce in the world. “THE AMERICAN WORKER.” I’ve spent the majority of my 45 plus years being around manufacturing and have experienced the sense of accomplishment to produce a quality product that you can be proud of. This feeling cannot be measured in dollars and cents but in one word “PRIDE”. It’s still here and we just need to see it and believe in the fact we have the most talented work force out of any other country on this globe. We used have a sign that hung in our manufacturing area that simply read “Build It As If You Would Buy It,” and we added “If You Wouldn’t Buy It, Then Don’t Ship It.” I’m sure lots of companies have the same types of sayings hanging in their manufacturing facilities. The process of making a part, having it go into an assembly, then seeing it work for the first time has to give a sense of pride to the maker. Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
Jack Steinbuch

Are You Afraid to Ask About Sizing Industrial Vibrators for Bins or Hoppers?

Jack Steinbuch
test

I’ve been told that my last blog regarding the importance of wall thickness when utilizing external industrial vibrators for bins or hoppers seems to have struck a chord.  I plan to expand on that blog by providing some recommendations for sizing external vibrators since I merely referred to a vibrator with proper force previously – and you just may have been afraid to ask!

Essentially, we need to apply enough external force to the wall of the bin or hopper to assist gravity in getting material to flow.  While I previously stressed properly flexing of the wall to get the material to flow, we still need to determine the correct amount of force to apply based on the configuration of the hopper as well as the bulk density and flowability of the material. Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
Glen Roberts

Clean Your Pipes! CVC & Pipe Bracket Assemblies Solutions

Glen Roberts
test

One of our lesser known products known to be made by The Cleveland Vibrator Company is our Pipe Bracket Assemblies. As you drive down our highway systems you will see many manufacturing companies with any number of pipes in several different sizes transporting many types of materials such as sand, coal, many types of powders, dust collectors etc. Our pipe bracket assemblies are designed to assist in the flow of materials through those pipes. The design allows for the assembly to be moved up and down the pipe depending on the location of a material flow problem. We currently manufacture pipe bracket assemblies Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
Jack Steinbuch

Hopper Vibration – Bend, but don’t break!

Jack Steinbuch
test

“Bend, but don’t break” is an old football saying that refers to a defense that “allows” the opposing  team to move the ball down the field on offense, but ultimately prevents them from scoring touchdowns.  While it’s not a perfect analogy, you could apply this statement to recommending externally mounted vibrators to aid in the flow of material down hoppers, bins and chutes without damaging the mounting surface.

Our challenge is to recommend a vibrator that will flex (bend) the wall or surface Read More…

Facebooktwittergoogle_pluslinkedinmailFacebooktwittergoogle_pluslinkedinmail
1 2  Scroll to top