seed counter elmor counts gemstones

What are the size limits of countable parts?

The elmor seed counters are characterized by an extremely high sensitivity. Therefore the models elmor C3 are used to count dust fine seeds of the model plant Arabidopsis thaliana at many universities worldwide. The C3 can detect parts as small as 0.1mm. Increasingly the number of other small parts are determined quantitatively with the elmor seed counters. For these tasks also the elmor C1 shows amazing abilities. Here are some fascinating examples: cut gemstones or green rough diamonds in the sub-mm range and precious metal balls with a diameter of 0.2mm only.

In all these cases, the conventional quantification which is usually applied by determining the weight gives results with insufficient accuracy, despite a high and costly instrumental effort (balances in the microgram range) and an enormous investment of time. Moreover, this process can hardly be automated.

In the examples shown, the particles are counted with a standard elmor C1 seed counter piece by piece fast and accurately. Vibrations of the workplace do not distort the results – this is in contrast to the weighing process. The default sorting elements FS0 or the adjustable sorting element FS3 are used for the singularisation of the parts. The counted parts are then filled into small containers on an elmor carousel filling device. The whole process runs unattended.

The customers save time and money and do not “donate” costly parts as a result of an erroneous quantification. Thanks to these savings, the devices used are amortized in the shortest time.

Gemstones to be counted with the elmor seed counter

Cut gemstones to be counted with elmor seed counters

0.2mm balls to be counted with the elmor seed counters

Balls of precious metal with 0.2mm diameter

elmor seed counter for diamonds

Green rough diamonds to be counted with the elmor seed counters


Counting Rhinestones with the elmor C3 counter

The very popular Rhinestones experience a boom as jewellery and fashion accessories. In addition, many textiles are decorated with stick-on stones (hotfix or hot glue rhinestones).

For the retailer, the exact dosage of these stones is quite difficult. The smallest stones may have dimensions of a few 1/10 mm and a weight of only a few milligrams. The weight of Hotfix stones varies due to tolerances in the amount of adhesive. The commonly practiced determination of a number of pieces based on the weight therefore leads – especially for small and hotfix stones – inevitably to incorrect values. Complaints from customers, inventory discrepancies or missing sales margins for the dealer are the result.

In an actual case, a customer has decided to count its stones with a PC controlled elmor C3 counting system. The elmor counters were originally developed to count plant seeds. Increasingly, the seed counters are also used for counting smallest mechanical parts – as well as rhinestones.

The elmor C3 can exactly detect small parts in the range of 1/10mm to more than 10mm. The control software allows to count total amounts or a predetermined number of pieces accurately and repetitively, for example 50 times 100 parts.

The small parts are an important sector of the customer’s product range. They can be processed with the standard conveyor bowl. Since very flat stones are present among these parts (thickness only a few 1/10 mm) the feeder bowl was equipped with the sorting element FS3. The FS3 is continuously adjustable in height and width. Thus stones next to each other as well as superposed stones can be eliminated from escaping so that only one stone after another leaves the vibrating bowl and is precisely detected by the highly sensitive sensor.

Caused by the vibrations of the conveyor bowl stones with small dimensions tend to charge electrostatically, which could lead to errors. With an ionizer the charges can be neutralized.

For large stones there is a risk that the cut edges being damaged during the conveying process. For this reason a conveyor bowl with polyurethane coating is used for stones larger than about 5 mm in diameter.

The data of all counting operations can be stored and exported for further use.

Large Parts counter

Counting large parts

The elmor C1 counting devices are mostly used as seed counters. In this case, parts in an extremely wide range from 0.2 mm to 18 mm in diameter can be processed. When an elmor C3 seed counter is used, the minimum size is even as low as 0.1 mm diameter. But different applications also require counting machines for counting large parts. In these cases, it is possible to use an external conveyor, instead of the built-in vibration conveyor.
This external conveyor is made individually for the items to be counted, so the size limit is eliminated. This concerns, for example, parts that can be handled manually hardly, very expensive parts such as implants or parts that are not suited for a counting scale. Thus, the seed counter becomes also a counting device for O-ring gaskets, a counting device for die-cut slices or a counting device for injection moulded parts.

Foundation of elmor Ltd.

Due to the strong growth of the private firm elmor Dr. Rudolf Moll, founded in 2003, the company was transformed into a corporation. The conversion was done by January 1, 2012.

The new company name is: elmor Ltd. (elmor AG / elmor SA)

The headquarter ist still located at: Mangelegg 58, CH-6430 Schwyz / Switzerland

Feeder Bowl for elmor counter with outlet at the bottom

New Conveyor Bowls for Thousand Kernel Weight Measurements

As accessories to the counting machines elmor C1 and C3 a new model of conveyor bowl is available now. In contrast to the well-known bowls with helical ramp, on which the counting material is carried to the discharge opening at the top of the bowl, the new conveyor bowls for thousand kernel weight have a product outlet at the bottom. Short time after a product change the bowl is ready. The waiting period, until the conventional conveyor bowls are filled, does not occur. An adjustable slide at the exit of the bowl permits the regulation of the product flow rate, so that also with this principle a good singularising quality and by it a high accuracy can be achieved.

The new bowl is intended for products such as Canola, Grain, Corn, Soy etc. and for applications with frequent product changes, e.g. with the determination of the Thousand Kernel Weight. With grain sizes under approx. 2mm diameters or for products, which can be singularised badly, the proven helical conveyor bowls can be used.

Award for elmor

On  Dec. 2. 2011 elmor was awarded with an innovations award by the Chamber of Commerce and Industry in Central Switzerland (IHZ). 

“elmor managed as a single company to implement their products worldwide in test and research laboratories, seed breeding firms and other production companies against international competition. This is amazing and a proof of the unique quality and usefulness of the developed devices and solutions. “

Press release of the New Luzerner Zeitung on Saturday  March 24, 2012: zaehlmaschinen


elmor counters are designed to be an Eco Friendly Product

Besides the fact that our seed counters fulfil an important role in many projects with ecological background, the whole family of elmor counters inflict themselves a minimum impact on the environment: elmor counters are designed to be an Eco Friendly Product

The elmor counters are characterised by the following attributes:

  • State of art electronics
  • Economical use of energy by using components with highest efficiency
  • No standby power consumption
  • Longevity and therefore preservation of “grey energy”
  • The used materials can easily be recycled to a large extent
  • Consideration of the specifications ROHS /WEEE
  • Use of solvent-free coatings
PUR Coated Bowl

Using the elmor counters in food, drug and medical industry

The conveyor bowls for the elmor seed counters can now be made of different materials or with special coatings, so that the bowls meet the requirements of FDA compliancy.

The conveyor bowls are either milled from special materials, such as PEEK or Titanium, or they may be coated, such as with PUR or hardened nickel, or they are hard-anodized. Thus, the elmor counting devices can now also be used in the dosage of food, pharmaceutical products or medical devices according to the specific requirements.