Determine the Thousand Grain Weight precisely with the elmor C3 seed counter

The thousand grain weight TGW (also called 1000 grain mass) is an important quality criterion in seed tests, which must be determined with great accuracy. The TGW or the derived value “number of parts per gram” are also an important parameters in the production and quality control of technical and pharmaceutical granules. Using an additional software module, an electronic balance and a special base frame, the elmor C3 precision counter can be used to directly determine the TGW of a sample. Both the C3 and the scale are connected to the control computer. A freely selectable quantity is counted and falls on the weighing pan. At the end of the counting process, the weight of the sample and the corresponding number of particles are automatically transferred to the PC, where the TGW is calculated. This is all done without manual input, so errors are avoided. The equipment allows tests to be carried out in accordance with ISO 520.

Extended range of feeder bunkers

Feeder bunkers are used to refill the elmor C1, C3 or CX counting machines continuously and unattended. These devices are available with a storage volume of 2.5 liters to more than 30 liters.

For light parts such as seeds, a linear vibratory feeder is the best choice. The picture shows two vibrating conveyors / storage bins with 2.5 liters and 5 liters storage volume. For larger and heavier items a belt conveyor can be used. The third unit on the picture is a 30-liter refill bunker based on a belt conveyor.
The filling level in the conveyor bowl of the counter is measured continuously. As soon as it reaches a minimum value, the product to be counted is automatically refilled. As a result, a long operating autonomy of the counting devices can be achieved, in particular if they are used in combination with a filling or packaging machine.

The new elmor C3 precision counter

In its new version, the completely redesigned PC-controlled elmor C3 precision counter presents itself not only with a different visual impression but also with completely renewed “inner values”.

The extremely wide range of parts that can be counted with the C3 has been expanded in the micro range. The smallest still countable parts are at some 10 microns. The application limit is no longer determined by the sensors and evaluation electronics, but only by the product properties. The smallest parts, which can still be conveyed and singularized, are counted with the C3.

Most obvious, however, is the new control software. It is optimized for Windows 10 and allows convenient entry of all setting values ​​as well as the storage and transfer of the relevant data for further evaluation or archiving, so that the traceability of the counting operations is guaranteed.

For the requirements of the users in the pharmaceutical and food sector, steel 1.4404 (AISI 316L) was chosen for the product-contacting materials. The bowl can be offered with FDA conformal coatings. An internal self-test was added as a new feature. It allows the new C3 counter to be integrated into GMP-compliant procedures, allowing it to perform a functional or operational qualification.

The new top model of the elmor counters comes in the following steps on the market.

From December 2018, the renewed C3 will be available with the modules “Totalizator” and “Preset Counter”. From January 2019, the module “Thousand Grain Weight” will also be delivered. For exact, largely automated and manipulation-proof determination of the thousand-kernel weight, a complete set is offered consisting of the C3 counter, a laboratory balance and all necessary accessories.

In spring 2019, the “Particle Size Measurement” module will be available in a new form. For the second half of 2019 a GMP suitable version of the control software is planned. With this version, setting data for critical products can be predefined and saved via an administrator function. The user can then work with these predefined settings, but has no authorization to change them.

Weight dosage dosing unit dosing balance dosing scale

Dosing scale for seeds, granules or powder in the gram range

In addition to the proven particle counting devices, elmor now also offers a weight dosing unit. With it, fine seeds, free-flowing granules or powders can be dosed very precisely in the gram range. The device of a specialized manufacturer can be combined for example with the elmor 800 packaging machine or the elmor filling carousel, or it can also be used as an independent dosing unit.

The patented process uses an ingeniously simple, maintenance-free and reliable dosing mechanism. With it, small portions can be staggered in a timely manner on a precision balance. For the variant used by elmor, this is a Mettler Toledo WMF industrial balance with a resolution of 1mg or 0.1mg (100 micrograms). An intelligent dosing algorithm promotes decreasing subsets at short intervals. As a result, the target weight is reached within a few seconds. The dosing tolerance is in the lower % range.

The special design of the dosing unit and the absence of vibrating feeder units prevent even inhomogeneous products from being dosed with virtually no measurable segregation or grain size selection.

The field of application of this dosing scale is found in the filling and packaging of fine seeds, granulates of all kinds such as micronutrients, pharmaceuticals, granular reagents, powdered cannabis products, ground hemp leaves and many more.

counter for pharmaceuticals

Parts counter for pharmaceutical products

elmor C1 PHARMA: a new parts counter for the pharma and the food industry

The elmor C1 seed counter is now also available in a special version for the pharma industry and the food industry, the new elmor C1 PHARMA. Based on the well known, precise and reliable elmor C1 seed counter, all parts that come into contact with the product are made of materials or have coatings that meet the requirements of the Food and Drug Administration (FDA) Title 21 CFR 21. This includes the conveyor bowl, the sorting element and the outlet for the counted products.
In contrast to the normal C1 seed counter, the housing cover of the elmor C1 PHARMA has a white colour. On request, however, the cover can also be made of bare stainless steel so that the entire counter can be cleaned and disinfected with liquid agents.

The new elmor C1 PHARMA is also equipped with an internal self-test device. In connection with GMP regulations (operational qualification OQ), it is now possible to prove the correct function of the counter at any time. The test module checks the correct function of the entire optical path, the sensor system and pulse processing unit as well as the pulse counter itself and the display.

The new parts counter elmor C1 PHARMA is used in many areas. This is the case, for example, in the random testing of automatic filling lines for tablets, or when filling small quantities of pharmaceutical products such as pills, tablets, capsules or globules. Furthermore, implantable parts are counted with the C1 PHARMA parts counter, for example radioactive seeds, small titanium markers, parts for bone screws and others.


Seed Counter

elmor Seed Counter and Filling Device for Cannabis Seeds

The increasing legalization of cannabis has led to a growing demand for our accurate seed counters and filling devices. As a rule, small numbers are usually to be counted, e.g. single grains or amounts of a few seeds only. The elmor C1 seed counter is extremely suitable for this counting task, as it has been optimized for processing small to medium batches.

Usually the counted seeds have to be packaged, which is a time-consuming manual job. Therefore, many customers combine the seed counter elmor C1 with a filling carousel. Dealers use all kinds of packaging materials, from simple PE zip bags to tailor-made containers made of paper, cardboard, plastic or metal.

Thanks to the modular construction of the elmor carousel filling machine, practically all containers can be processed. By saving working time with the elmor carousel filler and thanks to the precise dosage with the elmor C1 seed counter, the investments can be amortized within a short time.

elmor 800 ECO

elmor 800 Seed Packaging Machine now available in an energy saving version

The elmor 800 packaging machine is a popular choice for seed packing companies. It is specialized in the processing of sealable flat bags. If many different products but mostly small lot sizes have to be packed, the seed packaging machine elmor 800 is best suited together with an elmor seed counter or with any other suited dosing device.

In the case of the elmor 800 packaging machine, the empty bags are removed from a magazine, opened, filled and then closed by hot sealing. The bags are held with several vacuum suckers. The required vacuum is generated by means of compressed air operated venturi nozzles. These vacuum generators have no wear and function troublefree for years. Their disadvantage, however, is the high air consumption. This is why a compressor with a high air throughput is required. The overall energy consumption of the packaging machine is thus mainly determined by the air consumption of the venturi nozzles.

Improved version eliminates the venturi nozzles

With the latest version of the elmor 800 packaging machine, the elmor 800 ECO, motor-driven vacuum generators are used. The pumps used are quiet, wear-free and have a long service life. The entire energy consumption of the packaging machine drops by around 90%, since only a very small amount of compressed air is required for the remaining pneumatic elements. Depending on the tariff of the electricity costs this saving can make a substantial amount per year.

The picture shows an elmor 800 ECO packaging machine. It also shows how easy the machine can be adapted to different tasks. In the present case the dosage of the product – two different pharmaceuticals – is carried out by using two C1 PHARMA counting devices. Each counting device is equipped with a storage bin and feeding conveyor elmor 610 for automatically refilling the conveyor bowl of the counters. In addition, a printer module is used with which each bag is printed with a lot number and the packaging date.

Multichannel counters in harsh industrial use

The elmor counters are normally used as batch counters. This means that a certain amount of a product must be counted, and then the machine is used for a next task. In the present application elmor multichannel counters were installed firmly in two production lines. The products – safety-related mechanical precision parts for the automotive industry – are fed continuously via a belt conveyor. Then they are counted, portioned and fed into a packaging machine. The system operates up to 7 x 24 hours. Thus, the elmor multichannel counting machines can be in continuous, unsupervised use for several months. This is only possible thanks to the unique sensor technology of the elmor counters. Whether in harsh and dusty industrial environments or in the laboratory with the finest products, the sensors retain their high precision and can be operated during months without cleaning and maintenance.
As a member within a worldwide just-in-time supply chain uninterrupted supply of products must be guaranteed. The entire system, including the counting and packaging part is therefore built redundant. The elmor 650 counting devices in turn are ideally suited for this task thanks to the robust sensor modules. At each machine 2 sensor modules are incorporated, each with 5 channels. In case of failure a module could be replaced within a very short time.

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