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Jan 17, 2013

Reading Weight Accumulation With Conveyor Flow Scales

Do you need to know the amount of outgoing product or the yield of a process, but don’t need individual weights or don’t want to put the money and time into buying a checkweigher or conveyor scale?

This is actually a common need and something easily fulfilled by a quality flow scale.

single conveyor flow scale

Conveyor Flow Scale

A flow scale gets its name because it can gather data from uninterrupted flows of product.

While flow scales are not readily capable of performing individual weighments, they are perfect for providing accurate daily totals.

How do daily totals save you money?

Think of the tedious process used in the industry of having product flow into a container and then weighing that entire container on a separate floor or deck scale.

The line stoppages and poor work flow result in wasted time, wasted labor, and excess equipment.

Why a flow scale instead of a checkweigher or conveyor scale?

A big difference between flow scales and other conveyor scales is the way in which they sense products. Conveyor scales use calibrated photo eyes to notify the system when a product is entering the measurement area.

Single Conveyor Flow Scale

Single Conveyor Flow Scale – Measures total bulk or aggregate product weight

Flow scales are simpler in the sense that they are taking weighments non-stop so they don’t need to sense a product’s approach.  They do this by taking one weighment for every length of scale that cycles over the live area.

This ensures that nothing can pass over the scale without its weight being collected in some way.

This comes in handy for products that are longer than the scale’s live area.

Since there is only one weighment per scale length, this way of measuring ensures that each section of a long product or portion of a flowing product will be weighed and recorded only once.

The flow scale knows when one scale length has passed, because it uses an encoding wheel, not a timer, which measures how far the flow scale’s belt has traveled based on the rotations of the drive shaft.

Like any other scale variety, flow scales fill a unique position in industry.

If this sounds like something you could use in your plant, let us know what you are looking for, and we’ll help you decide whether a flow scale works for you.

Conveyor Flow Scale Brochure

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Jan 16, 2013

In-Motion Checkweigher Scales Vs. Bench Scales


Checkweigher scales can be a vital tool to your processing floors bottom line.

You don’t want to be giving away free product, sending out packages with missing product, or have inspections find that you are sending out underweight product.  These are just some of the reasons a good checkweigher scale is as important to your plants bottom line as labor costs are.

Either of these scenarios can give a plant manager a headache.

This is why installing a good checkweighing scale will assure that:

  • You are not giving away free product
  • You are not sending out underweight product
  • Your product is packaged correctly

Which checkweigher scale really gives you the best ROI?

But which checkweigher scale will better fit your needs, an in-motion checkweigher scale or a bench type checkweigher scale?

The bench type checkweigher scale is designed for simple manual operations such as checkweighing and piece counting.  These scales can be NTEP approved for various divisions and Legal-for-Trade accurate.

The In-motion checkweigher scale on the other hand is configured to fit right into your production line’s conveyor system and eliminates the need for manual checkweighing of your products. This scale can also be NTEP approved for various divisions and Legal-for-Trade accurate.

The bench scale checkweigher is limited in how you can use it.

  •     It is completely manual
  •     You must manually weigh and inspect all products
  •     You have to manually divert all over or under weight products

An in-motion checkweigher scale can fit all your needs.

  • They are ideal for checkweighing and inspecting at relatively high conveyor speeds
  • Metal detectors and x-ray machines can be added for better inspection results
  • They can automatically divert out of tolerance products to be reworked
  • They can be programmed to report to filling or other processing machines for automatic adjustment without stopping production
  • They can be integrated into your plant’s database and programmed for a variety of reporting functions

The dollars you lose each shift on giveaways or production mistakes can add up over the months.  By just eliminating product from going out the door free you will be able to pay for a new checkweighing scale system in a matter of months.


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Jan 14, 2013

Aspects to be considered in selecting a conveyor scale?

Consideration of things like speed, accuracy, and durability should be high on your list of interest items.

In addition, the type of application for which the conveyor scale is to be utilized is very important.

Conveyor Scale

Conveyor Scale with Interface

For example, the desired use may be in food processing with direct food contact, or it may simply be desired for use in a container shipping and packaging operation.

In a dry industrial environment, you may wish to consider either aluminum or stainless steel for base construction of the conveyor.

Where a wash down environment is the location of use, stainless steel is the choice to be made.

A prime consideration is  whether or not the weighment desired needs to be Legal for Trade (NTEP Approved).

If your need is to buy and sell according to the weighment, you should consider a WeighMore® In-Motion Conveyor Scale.  It’s considered the most accurate NTEP Approved Legal for Trade scale of its kind on the market today!

Click here for our informative brochure on conveyor scales!

The NTEP Capacities available are 10-200-lbs with 2000 NTEP Divisions with belt speeds available from 10 to 380 feet per minute.

conveyor scale

In-Motion Conveyor Scale

Unlike a check-weigher scale designed for actuating controllers for product acceptance or rejection, a simple conveyor scale is designed to weigh individually spaced products at high rates and speeds for variable weight labeling and interfacing with other systems.

Simplified calibration, maintenance, and operation are also sound aspects for consideration in selecting a conveyor scale.

With all of these things in mind, we recommend that you review the WeighMore® Conveyor scale!

Conveyor Scales Brochure

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Jan 13, 2013

Easy-To-Clean™ Conveyors

Conveyors have come a long way since the days they were first designed to move bulky, dirty materials from mines and pits!

conveyor system

Easy-To-Clean Conveyor

Since conveyors are now essential to most food manufacturing facilities we have devoted a tremendous amount of attention to conveyors that help keep food clean and safe.

Our side rails are channeled in shape and feature large openings in the channel to facilitate vigorous cleaning.

To help prevent water from pooling, we are careful to ‘under-bend’ angles to less than 90 degrees. 

easy to clean conveyor

Easy-to-clean Conveyor

Optional lift-able ends allow cleaning crews to easily slacken the belt and open up the conveyor to inspect for cleanliness.

A sprayer attachment that cleans sprockets while the conveyor is running is a popular option.

Imagine the improvement in your sanitation program that come from having spray nozzles aimed directly at your conveyor sprockets!

Not only do we offer USDA-approved materials for food grade conveyors, including modular plastic belting, but we can also go the extra mile by building conveyors with homogenous thermoplastic belting.

These last two approaches have been very successful in a number of direct food contact applications, including transporting food up steep inclines at high throughput levels.

When the incline conveyor is handling food that is slightly sticky, such as bacon bits or sliced pepperoni, our customers usually specify homogenous thermoplastic belting with one seam.

When the requirement is to transport an emulsified food item with higher levels of moisture content, we recommend a seamless belt.

The key to getting the right conveyors for your plant is to choose quality first, then customize your conveyors with the features and options that allow you to reach your production goals without compromising cleanliness or safety!

Easy-to-Clean Conveyors Brochure

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See our Washdown Stainless Steel Conveyors

Jan 12, 2013

Trolley Tracking By Radio Frequency Using Trolley Vision® RF

We like mentioning our standard Trolley Vision® system to people because we are proud of the work and research that has gone into it, but something we don’t touch on as much is the Trolley Vision® RF (radio frequency) system.

Rather than using a visual recognition system, the Trolley Vision® RF system works through radio interaction between an interface and the trolleys.

With our RF system, radio frequency tags are implanted inside an anti-corrosive, food-safe mold that is secured inside a trolley wheel made to fit customers’ monorails.

A radio frequency antenna is installed to send out an electrical field, which causes each RF tag to send back a unique harmonic response that can be determined by the interface and can be tracked through a database system.

It is a similar concept to our vision systems with a different approach.

This system tends to fit for operations that aren’t as speed-intensive because the frequencies being output by equipment in a high-speed environment can conflict with those being sent out by the antenna.

A good example of a proper environment is in smokehouses.

They don’t run at very high speeds because the trees that they hang meat from have to stop in the smoker from time to time.

While it is easy to make trolleys for Trolley Vision®, these plants might not have optimum visual conditions to have Trolley Vision® camera stations.

It is also a viable economic option for some because you don’t need as many antennae as you would need camera stations for multiple checkpoints, and the antennae cost less than a camera station as well.

Since the meat industry (carcasses in this case) is held more and more responsible for keeping track of their product, you really need a good tracking system to stay in the game.

Get in touch with us and we will let you know what type of Trolley Vision® system would fit your operation best. Request a quote for your system today.

RF Trolley Vision Tracking Brochure

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