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AS 400 Control Sieve Shaker


The RETSCH AS 400 control is used for sieving dry goods with test sieves up to 400 mm in diameter. The uniform, horizontal circular sieving motion produces a sharp separation of the sample fractions. Fine and coarse-grained goods from areas such as milling, brewing, chemical industry, quarries, soil testing, woodworking and plastics industry, can be exactly separated with the AS 400 control. This particular sieving motion is preferably used for long or fibrous, needle-shaped or flat materials due to their horizontal orientation. For the testing of plastics (grainy molding materials), the standard DIN 53 477 stipulates exactly this circular sieving motion.

The AS 400 control can be used as test instrument for the quality control according to DIN EN ISO 9001. Due to the controlled drive which is independent of the power frequency the AS 400 control yields reproducible results worldwide. The speed and sieving time are set, displayed and monitored digitally. The instrument is supplied with a test certificate and can be recalibrated. If desired, the rotation direction can be set to alternate in the interval. A memory for 9 sieving programs facilitates routine analyses. The AS 400 control has an integrated interface for controlling all sieving parameters via the EasySieve® software.

ACCURACY & EFFICIENCY

  • Circular sieving motion according to DIN 53477
  • For sieves up to (Ø) 400 mm
  • Measuring range 45 μm to 63 mm
  • Easy operation, ergonomic design
  • Free digital selection of process parameters (time, speed, interval)
  • Memory for 9 Standard Operating Procedures (SOPs)
  • Test materials monitoring according to DIN EN ISO 9001

FUNCTIONAL PRINCIPAL

The base plate of the AS 400 control performs horizontal circular motions with a radius of 15 mm (according to DIN 53477). The speed of 50 to 300 rpm is electronically controlled. It is continuously adjustable to meet the requirements of the product to be sieved. The actual value of the number of revolutions is digitally displayed. The base plate is driven by a robust, maintenance-free drive motor with a power of 125 Watt. The power is transmitted via an eccentric.

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.

APPLICATION EXAMPLES

RETSCH’s vibratory sieve shakers are ideally suited for separation, fractioning and particle size determination of cement clinker, chemicals, coffee, construction materials, fertilizers, fillers, flours, grains, metals powders, minerals, nuts, plastics, sand, seeds, soils and washing powder.

Fertilizers
Soil
Cereals
Construction Materials

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
Measuring range* 45 µm – 63 mm
Sieving motion horizontal circular motion
Max. batch / feed capacity 5 kg
Max. number of fractions 7 / 9 / 17
Max. mass of sieve stack 15 kg
Speed digital, 50 – 300 min-1
Time display digital, 1 – 99 min
Interval operation 1 – 10 min
Storable SOPs 9
Suitable for dry sieving yes
Suitable for wet sieving no
Serial interface yes
Including test certificate / can be calibrated yes
Suitable sieve diameters 100 mm / 200 mm / 203 mm (8″) / 305 mm / 315 mm / 400 mm
Max. height of sieve stack 510 mm
Clamping devices standard, “comfort”, each for dry sieving
Protection code IP 20
Electrical supply data 100-240 V, 50/60 Hz
Power connection 1-phase
W x H x D 540 x 260 x 507 mm
Net weight ~ 70 kg
Standards CE

*depending on feed material and instrument configuration/settings