Vibratory Equipment Beat

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…


Air Powered Vibratory Feeders: 3 Things To Know Before Making a Buying Decision

Mike Stratis

When it comes to handling dry or semi dry bulk material, there are few means to transport the material from point A to point B. The common options are pneumatic conveying equipment, frequently dense or dilute phase, belt conveyors, screw augers or vibratory feeders, flat pan style or enclosed tube style. There certainly is a time and place for each of these options but we will focus on the vibratory feeder design.

Companies looking to make a buying decision on which type of equipment to install that will handle the material typically turn to the vibratory feeders that are powered by a pneumatic or air piston vibrator for one of or a combination of a few reasons:

cleveland-vibrator-vmsac-vibrator-group-shotAir Powered Feeders Work Well Within a Budget – First, and maybe most importantly, the purchase price. The air powered vibratory feeders can be the low cost alternative to the electromechanical or electromagnetic powered vibratory feeders. The biggest cost savings can come directly from the vibratory drive or mechanism and the vibratory controls. Electromechanical feeders typically have two vibratory motors while the electromagnetic feeders typically have one large vibratory drive attached. Each of these electric powered options require an electrical control box, with dual thermal overload protection for the electromechanical vibratory motors, for on/off operation, speed control or intensity of the vibration control. In contrast, the air powered feeders are driven by a single non-impacting piston, for example the Cleveland Vibrator VMSAC design, units and either controlled by a manual ball valve or 2-way, normally closed, solenoid valve. Read More…


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…


Vibratory Compaction Tables: 5 Things to Consider When Working Within A Budget

Mike Stratis

Are you looking to add a vibratory table to the manufacturing and/or shipping processes of your facility? If yes, great! We’d be glad to help put our experience to work and point you in the right direction. There are a few things to review during the buying process and each of these forks in the road can have an impact on overall cost of the equipment.

For starters, what can vibratory tables do? We commonly see the following reasons to include a table:

  1. Flatten the mound build up or pile of material made from the filling station discharging into center of the Gaylord, tote, box or similar type packaging container
  2. Compact and stabilize bulk bags, FIBCs or super sacks for easier stacking and handling prior to storage or shipment
  3. Fully or semi automate packaging lines by integrating with rollers sections (CDLR and gravity) or belt conveyors
  4. Fill, weigh and compact material
  5. Remove air bubbles in molds and casted products for improved structural and surface finish
  6. Lower labor hours and costs for packaging and processing lines

Read More…


Unique Design Options Available for Specific Vibratory Compaction Table Applications

David Strong

Recently on a long weekend I took the “Behind the Scenes Tour” of the C.F. Martin guitar factory in Nazareth, Pennsylvania.  During the tour the six of us in my group got to see pretty much the whole guitar building process from wood coming in the back door to final set up of the completed instrument.  Along the way we spent a few minutes talking with the guy that actually hand selects the wood for all the Custom Shop guitars, the customer works with a Martin guitar distributor, customizes an instrument and starts the process.  This gentleman reviews the order’s specifications and gets to look through Martin’s selection of some of the most beautiful wood you’d ever want to see to find just the right set to match up with the order.  Custom shop orders start with the basic guitar body style and build on from there, sort of like what Cleveland Vibrator does with its product line.  Cleveland Vibrator is very customer driven; the customer knows their business, process and goals, Cleveland Vibrator asks questions, listens, and often conducts testing, then offers a solution to accomplish those goals.  Similar to Martin Guitars on the “custom build your guitar” portion of their website, modifications to Cleveland Vibrators products is available.

FA Flat Deck Vibratory TableA good example of a product that is often modified by customer requirements is the vibratory table.  Basically a table is designed to vibrate linearly in the vertical direction.  From this very basic concept there are almost an infinite number of options and variables available to accomplish the customer’s goal, regardless of how simple or Read More…


2015: The Year of the Vibratory Table

Katy Sabo

With a new exciting year in sight for me here at Cleveland Vibrator, I took some time to reminisce on some of my favorite FAB jobs that headed out of our facility throughout 2015. As I was perusing through my photo files, I found that our Vibratory Compaction Tables dominated this past year with our Vibratory Feeders running a close second. If you have read any of my other blogs, you will know that one of my favorite obligatory duties around here is filming equipment for quality assurance purposes before it leaves our manufacturing plant. Moreover, I love learning about new applications which our equipment will be used for and let me tell ya’, there were some pretty fun ones this year. So let’s take a trip down memory lane and get us stoked for the upcoming year folks!

At the beginning of last year, David Strong, Jack Steinbuch and myself took a maintenance visit to a customer right here in Cleveland to see one of our flat decks in the field. Read More…


Cleveland Vibrator and the Chocolate Factory

Katy Sabo

Anyone who knows me well, knows about my undying love for chocolate. I had a great aunt who lived 98 wonderful, rich years and was quick as a whip until her final days… so what was her secret? A piece of good quality chocolate a day will let you live long and prosper. I will never forget that and have adopted that mantra. Since I began working at Cleveland Vibrator over 2 years ago (wow times flies!) I have seen how industrial vibration mixes with some of my favorite things in life. One of which, if you haven’t guessed already, is chocolate.

I was perusing through our case history archives last week and found one dating back to the 1960’s where industrial vibration was being used in a leading candy producer’s factory. Their chocolate molding department was encountering an air bubble problem in their molds during the filling process, Read More…


It’s Complicated, or Is It? The Frequency, Stroke & Acceleration Relationship

Jack Steinbuch

Variable Frequency Drives (VFD) have become commonplace in many of our bulk material handling applications due to the adjustability they provide and the cost which has become more attractive over the years.  However, I have found that many of our customers do not understand what they can achieve with this controller and how it affects acceleration when working with our electromechanically driven equipment featuring twin electric motor vibrators like our EMF vibratory feeders, EMS vibratory screeners and FA flat deck & GT grid top tables.

So we will start off with the fact that is contrary to what some might think – the lowering of the frequency does not affect the stroke being produced by the equipment.  The stroke of the equipment can only be changed by mechanically adjusting the eccentric weight settings on the vibrators.  Read More…


What You Need To Know About Screening Media – Part V

Jack Steinbuch

This blog is the fifth and final (yeah) in a series that has been dedicated to typical screening media that are installed in Screeners with their advantages and disadvantages so you can be in a better position to assist us in the selection process.

Grizzly Bars

This screening media is used primarily for heavy duty screening applications.  So, it is commonly used in industries for scalping large, heavy material or for material that might easily hang up on or blind other types of screening media. Read More…


What You Need To Know About Screening Media – Part IV

Jack Steinbuch

This blog is the fourth in a series that has been dedicated to typical screening media that are installed in Vibratory Screeners with their advantages and disadvantages so you can be in a better position to assist us in the selection process.

Profile (Wire) Deck

This screening media is used primarily for dewatering applications.  Additionally this decking is used in the Coal industry for drain & rinse and desliming applications.  This decking is also utilized in screeners for the iron ore, potash and phosphate industries.

Profile decking is most often stainless steel construction, but can also be constructed from other metals.  This decking most typically consists of V-shape or triangular wire profiles that are supported in parallel on cross bars.  Read More…

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