The microprocessor-controlled measuring and control unit of this model ensures a constant vibration height, allowing for 100% reproducibility of results even among different AS 200 control shakers. One particular characteristic makes this RETSCH product stand out from others: Instead of the vibration height, it is possible to set the sieve acceleration which is independent of the power frequency. Together with the possibility of calibration, this ensures comparable and reproducible sieving results worldwide. Thus, all requirements for the test materials monitoring according to DIN EN ISO 9001 are met.
All sieving parameters – vibration height, time, and interval – are set, displayed and monitored digitally which makes operation of the AS 200 control very convenient and quick. Up to 99 standard operating procedures (SOPs) may be stored for routine analyses.
Through the integrated interface the instrument can be connected to a PC and controlled with the evaluation software EasySieve®. This program enables the user to carry out the whole sieving process and its subsequent documentation with convenience, accuracy and conforming to standards.
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"The software and machine is easy to use. You can put the sieves in the dishwasher. "
M. Becker
Haribo Produktions GmbH
"We use a vibratory sieve shaker in a glove box, for this reason, it is very important for us to have precise and trustworthy equipment. "
Daniel Yorio
Canadian National Energy Alliance
"Results are very accurate, good sturdy piece of equipment and excellent service and support from Retsch. "
Diane Mee
Doff Portland Ltd.
"These sieve shakers last long and require little maintenance. We use them daily and we have several that are over 10 years old."
Heidi Bartel
Microvention
"Retsch devices are reliable, they contribute to obtaining excellent results that are accurate and precise (excellent repeatability). "
Tamara Djordjevic
Profi Lab
"We have been using a Retsch AS200 Sieve Shaker for 20+ years. The instrument is reliable and easy to use. We get it calibrated yearly and never have any discrepancies for the instrument being out of specification. "
Tiffany Brenner
PPG
Operation of the AS 200 control is convenient and easy. All sieving parameters – vibration height, time, interval – are set, displayed and monitored digitally. Up to 99 parameter combinations (SOPs) can be stored for routine analyses. Through the integrated interface the instrument can be connected to a PC and controlled with the evaluation software EasySieve®. This program enables the user to control the whole sieving process and the subsequent documentation with convenience and accuracy.
There are many applications for which wet sieving is the best solution, e.g. when the material to be tested is a suspension or when a very fine sample (< 45 μm) that tends to agglomerate needs to be sieved. All vibratory sieve shakers from RETSCH can be used for wet sieving. There are special accessories like clamping lids with spray nozzle and collecting pans with outlet available. By placing RETSCH’s venting rings between the sieves, air cushions can expand without letting liquid or sample material escape.
The sieve shakers of the control series can be equipped with a variety of accessories to provide for a wealth of application requirements.
With the RETSCH clamping devices the sieves are clamped safely, quickly and conveniently on the sieve shaker. The clamping devices “comfort” are particularly user-friendly and timesaving.
Collecting pans, intermediate pans, intermediate rings and sieve lids.
Clamping lid with nozzle, collecting pans with outlet, venting rings.
Chain rings, brushes, cubes, balls (e.g. for reducing agglomerations when sieving particles < 100 μm and keeping the mesh free).
We provide IQ/OQ documentation for the „control“ sieve shakers to support IQ/OQ certification by our customers.
Suitable for thorough cleaning of test sieves and for quick, gentle drying of samples and sieves.
EasySieve, the software for particle size analyses, exceeds manual evaluation in many aspects. The software is able to automatically control the necessary measurement and weighing procedures – from the registration of the weight of the sieve up to the evaluation of the data. It is simple and convenient to use and is also available in an FDA 21 CFR Part 11-conform version.
Vibratory sieve shakers are frequently used for grain size analysis of cement clinker, chemicals, coffee, construction materials, fertilizers, fillers, flours, grains, metals powders, minerals, nuts, plastics, sand, seeds, soils, washing powder, etc.
coffee
soil
cereals
Soy beans
To find the best solution for your sample preparation task, visit our application database.
In soil analysis, sieving with the AS 200 control prevents distortion of analytical results, reliably separates rocks from soil samples, and simultaneously minimizes equipment damage. Users achieve time-saving and precise analytical results, while maximizing the service life of their devices.
Unbeatable Together: The AS 200 control in combination with the BB 50 jaw crusher is the proven solution for processing large agglomerates from soil samples and can handle up to nine samples in one batch.
A 120 g soil sample with agglomerates up to 15 mm in diameter was processed using a 200 x 25 mm sieve with 2 mm round holes.
The Cologne Cathedral workshop has relied on the AS 200 control for many years to precisely determine particle size distribution in mortar. Various particle fractions can be accurately separated and combined. The goal is to develop mortar with optimal structure and color that almost perfectly replicates the original stone. The use of the AS 200 control eliminates manual sorting, making mortar production more reproducible and efficient.
The result: mortar with the physical properties to fill cracks and simultaneously prevent water penetration.
At Lebensgarten GmbH, the quality of organic cereal flakes is ensured through precise incoming goods inspections. Sieving analysis separates the flakes into different particle size fractions. Special importance is given to the dust fraction of the product with a particle size < 500 μm. This can impair the sealing of packaging on the one hand and negatively affect the consistency of crunchy products on the other.
The patented electromagnetic drive and the three-dimensional throwing motion of the AS 200 control ensure even distribution and optimal separation. Thanks to flexibly adjustable parameters such as amplitude and hole size, various types of flakes can be precisely sieved – ideal for checking raw material quality regarding dust and fine fractions and ensuring high quality in end products.
All sieve shakers of the series AS 200 work with an electromagnetic drive that is patented by RETSCH (EP 0642844). This drive produces a 3D throwing motion that moves the product to be sieved equally over the whole sieving surface. The advantage: high stress capacity, extremely smooth operation and short sieving times with high separation efficiency.
| Applications | separation, fractioning, particle size determination |
| Field of application | agriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, food, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals |
| Feed material | powders, bulk materials, suspensions |
| Measuring range* | 20 µm - 25 mm |
| Sieving motion | throwing motion with angular momentum |
| Max. batch / feed capacity | 3 kg |
| Max. number of fractions | 11 / 22 |
| Max. mass of sieve stack | 6 kg |
| Amplitude | digital, 0.20 – 3.00 mm |
| Controlled amplitude | Yes |
| Sieve acceleration | 1.0 - 15.1 g |
| Time display | digital, 1 - 99 min |
| Interval operation | 1 - 99 s |
| Storable SOPs | 99 |
| Suitable for dry sieving | Yes |
| Suitable for wet sieving | Yes |
| USB interface | Yes |
| Including test certificate / can be calibrated | Yes |
| Suitable sieve diameters | 100 mm / 200 mm / 203 mm (8") |
| Max. height of sieve stack | 620 mm |
| Clamping devices | standard, "comfort", each for wet and dry sieving |
| Protection code | IP 21 |
| Electrical supply data | 100-240 V, 50/60 Hz |
| Power connection | 1-phase |
| W x H x D | 417 x 212 x 384 mm |
| Net weight | ~ 35 kg |
| Standards | CE |
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