AS 450 CONTROL SIEVE SHAKER INTRODUCTION
Accuracy & Efficiency
- Sieving with 3-D effect
- High sieve loads (up to 25 kg)
- Suitable for dry and wet sieving
- Measuring range 25 μm to 125 mm
- Sieve stack up to 963 mm, for sieves up to 450 mm Ø
- Memory for 9 Standard Operating Procedures (SOPs)
- With remote operation panel
- Sieve acceleration independent of power frequency
- Test materials monitoring according to DIN EN ISO 9001
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.
FUNCTIONAL PRINCIPAL
The AS 300 works 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 | chemistry / plastics, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics |
| Feed material | powders, bulk materials, suspensions |
| Measuring range* | 25 µm – 125 mm |
| Sieving motion | throwing motion with angular momentum – 3D movement |
| Max. batch / feed capacity | 25 kg |
| Max. number of fractions | 13 / 9 (min. 3)* |
| Max. mass of sieve stack | 50 kg |
| Amplitude | digital, 0.2 – > 2.2 mm |
| Sieve acceleration | 1 -> 7.1 g |
| Time display | digital, 1 – 99 min |
| Interval operation | 10 – 99 s |
| Storable SOPs | 9 |
| Suitable for dry sieving | yes |
| Suitable for wet sieving | yes |
| Serial interface | yes |
| Suitable sieve diameters | 400 mm / 450 mm |
| Max. height of sieve stack | 963 mm |
| Clamping devices | standard, “comfort”, each for wet and dry sieving |
| Electrical supply data | different voltages |
| Power connection | 1-phase |
| W x H x D | 705 x 440 x 635 mm |
| Net weight | ~ 220 kg |
| Standards | CE |
*depending on sieve height and clamping unit
