vibratory feeder

David Strong

How to Design and Size a Vibratory Feeder Conveyor Based on Application Requirements

David Strong
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Similar to vibratory tables in their many uses and applications, vibratory feeders are also great problem solvers.  Well known for their ability to effective move material from point A to point B, a well-designed vibratory feeder offers flexibility to the end user to get the task done.

vibratory feeder, vibratory conveyor, rendering vibratory feeder

Figure 1. Air Powered Vibratory Feeder Conveyor

Feeders can range from small base mounted CF-A, pneumatic powered feeders moving small quantities dry bulk material in a controlled manner to much larger base or cable supported EMF, Electro mechanical feeder, conveying literally tons of material an hour. Off the top of my head a short list of materials that Cleveland Vibrator’s vibratory feeders have worked with would include: almonds, crushed limestone, shelled corn, powdered metal, metal billets, various pipe fittings, scrap brass and bronze, crushed and shredded automobiles, hot dross and much more.

Typically, a feeder application will require the movement of some given amount of material with a known bulk density over a desired distance. Read More…

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David Strong

Installing Vibratory Aids on Equipment: What Are My Options?

David Strong
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It seems to me that most applications start with a problem to solve; improve a process, simplify an operation, increase yield or throughput, or remove a bottleneck.  This problem could be as simple as placing the appropriately size pneumatic piston vibrator on the size of a hopper.  It could entail getting the right air cushioned vibrator such as the 1200 VMSAC or maybe a single impacting SI vibrator along with the matching SMP mounting channel and controls.  Or the problem could be more broad with concerns regarding the process or task to be accomplished and the design envelope into which the solution must fit and then interface with other equipment.

Regardless of the problem, options and choices are always good. 

cleveland vibrator vibrtgory conveyor, electric vibratory conveyor, electric vibratory feederOften with equipment one of the first things that comes up in initial discussions is the design height or discharge height of the unit.  With vibratory feeders (EMF) and screeners (EMS)
there’s always a concern of the product discharge height, as the equipment is often feeding material downstream to other devices.  One of the options that impact the design and therefore the height of the unit is the location of the vibrators.  Typically on vibratory feeders and screeners the default Read More…

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David Strong

3 Variables to Consider That Influence Material Flow from Vibratory Hopper Feeders

David Strong
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When it comes to vibratory equipment and end user requirements, Cleveland Vibrator has worked with customers that span the range from simply wanting to move material from point A to point B and they’re not terribly concerned with much more than that goal.  Other customers use vibratory equipment to provide bulk material to downstream processes and are looking for more precise control of the material flow.

Recently I had the opportunity to visit a local customer and assist him with setting up a recently completed hopper-feeder unit.  This customer’s goal was to place a dry material into plastic trays while the plastic trays moved on a conveyor belt under the vibratory feeder.  Precise metering of the dry material into the trays is critical to this customer’s success.  As I worked with this customer and our equipment it seemed to me that this would be an excellent basis for a discussion of material flow and what parameters impact the control of the flow. As mentioned the equipment provided by Cleveland Read More…

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David Strong

Manufacturing Solutions, From Start to Finish.

David Strong
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Cleveland Vibrator recently added a new employee in the Fabricated Equipment area of the company.  At the end of 2015 our CEO declared that 2016 would be a “year of investment” here in terms of both people and equipment.  It’s exciting to see this sort of thing happening, good people coming on board as well as some new CNC equipment on the immediate horizon.  It all makes Cleveland Vibrator a better company.  While getting to know a bit about our new guy in the Fab area, we talked some about his work experience and the opportunity at Cleveland Vibrator.  One of the things he already likes about the position is that he gets to see a piece of equipment completely manufactured, start to finish.  I told him that’s one of the things that I’ve always enjoyed about my job, getting to be involved with the complete process often starting with the solution concept generation phase to final testing of that solution prior to it shipping out to the customer.

I think most engineers are problem solvers and that’s one of the aspects of this profession that they find interesting and rewarding.  That’s certainly the case for me.  I’ve always found the diversity of Cleveland Vibrator’s customers and their problems very interesting.  Plus, I feel that we have a very “intimate” manufacturing process, it’s all here in one location.   Whether it’s the manufacture of a pneumatic piston vibrator, as an example the 1300 VMSAC, air cushion vibrator piston vibrator or a large vibratory feeder Read More…

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David Strong

What’s the Difference Between Attached & Unattached Volumetric Hopper Designs for Vibratory Equipment?

David Strong
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Generally speaking, in life, choices are a good thing.  This applies to industrial vibrators and vibrating equipment as much as it does for lunch time options.  In terms of fabricated vibratory equipment, Cleveland Vibrator offers a variety of solutions to processing and material handling problems.  Regardless if the need is for a vibratory feeder, screener, compaction table or vibratory belt table, our sales and application folks are up to the challenge of solving the particular needs and requirements of our diverse customer base.  As I mentioned in earlier blogs, when it comes to vibratory equipment, one size in fact doesn’t fit all.  Rarely do one customer’s particular requirements match up exactly with another customer’s, the solution may be similar in type but not in exact physical size.  Tailoring to meet the individual needs of each customer is part of the Cleveland Vibrator fabricated equipment DNA.

One of the many types of fabricated equipment manufactured by The Cleveland Vibrator Company is the volumetric feeder.   Internally, they are generally referred to as Hopper Feeders, RFM, these units can be pneumatic or electric powered.  The key design element is that a vibratory feeder has a storage hopper associated with it which accepts and stores dumps of material and then feeds the material out of the hopper in a controlled manner.  Read More…

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David Strong

Why Is My Bulk Material Feeding or Screening Inefficiently?

David Strong
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Once again I’m touching on the topic of the proper setup of rotary electric vibrators (RE) when they’re used on vibratory equipment.  Most of the vibratory equipment manufactured by The Cleveland Vibrator Company uses two rotary electric vibrators to produce linear vibration.  Vibratory tables (FA), vibratory grid tables (GT), electromechanical screeners (EMS) and electromechanical feeders (EMF) are all designed for the vibrators to counter rotate.   Again, counter rotation simply means that the vibrators rotate in different directions, one clockwise and the other counter clockwise.  It doesn’t matter which vibrator of the pair rotates clockwise or counter clockwise, it’s just important that they both don’t rotate in the same direction.

I recently tagged along with Jack Steinbuch on a visit to a customer who was experiencing some problems with a vibratory hopper feeder (RFM).  After inspecting the unit we asked the customer to remove the weight covers on the vibrators so we could check the rotation direction.  Once the weight covers are removed from the same end of each vibrator it’s very easy to see the direction of rotation as the vibrators are started up.  At startup it was clear that the vibrators were NOT counter rotating as required.   Read More…

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Craig Macklin

Brake. Don’t Break.

Craig Macklin
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To the casual observer, Vibratory Equipment might look like pretty simple stuff.  You just slap some vibrators on the thing to make it shake, right?  Anyone can make that!  Well, as we’ve seen in some other detailed posts from Jack Steinbuch and David Strong, there is more than meets the eye to designing and building something that will work and last.

One design feature in our controls that we have offered and recommended in the past is the Dynamic Brake. I say that we offered in the past because we are now moving to just making Dynamic Brakes standard features.  We recognize that many folks may not know what a Dynamic Brake really does in order to see it as a good option to add.  However, as you will see in the explanation and video here, it is more than a good option.  It is the right way to build controls for vibratory equipment.  We feel so strongly about doing things the right way.  So, we are now just including it as standard feature.

To explain the Dynamic Break, we need to start with a quick review of the vibratory motors that make the equipment work.  A vibratory table, feeder or screener uses two rotary electric vibratory motors (or shaker motors) that counter-rotate.  Read More…

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