AS 200 Control Sieve Shaker Introduction
Accuracy & Efficiency
- Sieving with 3-D effect
- For sieves up to (Ø) 203 mm
- Suitable for dry and wet sieving
- Measuring range 20 μm to 25 mm
- Memory for 99 Standard Operating Procedures (SOPs)
- Digital setting and control of sieving parameters
- Sieve acceleration independent of power frequency
- Patented electromagnetic drive (EP 0642844)
- Test materials monitoring according to DIN EN ISO 9001
SAFE AND SIMPLE OPERATION
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.
WET SIEVING WITH VIBRATORY SIEVE SHAKERS
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.
ACCESSORIES
RETSCH sieve shakers can be equipped with a variety of accessories to meet a wide range of application requirements.
- Clamping units
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.
- Accessories for test sieves
Collecting pans, intermediate pans, intermediate rings and sieve lids.
- Accessories for wet sieving
Clamping lid with nozzle, collecting pans with outlet, venting rings.
- Sieving Aids
Chain rings, brushes, cubes, balls (e.g. for reducing agglomerations when sieving particles < 100 μm and keeping the mesh free).
- Sample Dividers
Meaningful results can only be obtained if the sample represents the original material. Sample dividers produce representative part samples, thus ensuring reproducibility of the analysis.
- Ultrasonic baths and dryers
Suitable for thorough cleaning of test sieves and for quick, gentle drying of samples and sieves.
EASYSIEVE / CFR EVALUATION SOFTWARE
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.
TYPICAL SAMPLE MATERIALS
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.
APPLICATION EXAMPLE
Efficient Separation of Stones from up to 9 Soil Samples with the AS 200 control
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.
FUNCTIONAL PRINCIPAL
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
TECHNICAL DATA
| 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 |
*depending on feed material and instrument configuration/settings
