AS 300 Control Sieve Shaker
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AS 300 Control Sieve Shaker

The AS 300 model has all the benefits of the AS 200 control but is designed for test sieves with a diameter up to 315 mm, providing a sieve surface which is approximately 2.5 times larger. Therefore, the AS 300 is able to separate up to 6 kg of material in one working run. Repetitive operations are greatly simplified with the possibility to store up to 99 standard operating procedures (SOP). For perfectly reproducible sieving results, the AS 300 control can be programmed with sieve acceleration independent of the power frequency instead of vibration height.

The microprocessor-controlled measuring device monitors and automatically readjusts the vibration height. All sieving parameters are set, displayed and monitored digitally. The AS 300 control can be calibrated, and is thus suitable for test materials monitoring. Like all instruments of the “control” series, the AS 300 has an integrated interface for using the evaluation software EasySieve® to control, set and visualize all parameters, including complete documentation of the sieving process

Accuracy & Efficiency

  • Sieving with 3-D effect
  • For sieves up to (Ø) 315 mm
  • Suitable for dry and wet sieving
  • Measuring range 20 μm to 40 mm
  • Memory for 99 Standard Operating Procedures (SOPs)
  • Digital setting and control of sieving parameters
  • Sieve acceleration independent of power frequency
  • Reproducible and globally comparable sieving results
  • Short sieving times due to large sieve surface and effective movement
  • 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.

Coffee
Soil
Cereals
Construction Materials

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 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 – 40 mm
Sieving motion throwing motion with angular momentum
Max. batch / feed capacity 6 kg
Max. number of fractions 11 / 17
Max. mass of sieve stack 10 kg
Amplitude digital, 0.20 – > 2.20 mm
Controlled amplitude yes
Sieve acceleration 1.0 – > 10.0 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
Serial interface yes
Including test certificate / can be calibrated yes
Suitable sieve diameters 100 mm / 200 mm / 203 mm (8″) / 305 mm / 315 mm
Max. height of sieve stack 510 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 220 x 384 mm
Net weight ~ 42 kg
Standards CE

*depending on feed material and instrument configuration/settings

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