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Test Sieves
100 / 150 / 305 / 400 / 450 mm Mesh Sieves
The well-proven RETSCH sieves consist of a solid stainless steel sieve frame of high stability for reliable sieving results. Paying close attention to mesh-specific requirements, the sieve fabric is precisely joined into the frame and tautened. RETSCH test sieve provides a clear and accurate labeling with full traceability.
The sieves can be easily combined with all other sieve brands. Each sieve that leaves our company comes with a test report or, at your request, with a special inspection certificate in conformity with national and international standards (PDF). RETSCH calibration certificates confirm a great number of precision measurements, thus ensuring an even higher statistical reliability for your quality control.
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Test Sieves
200 / 305 / 400 mm Perforated Plate Sieves
The well-proven RETSCH perforated plate sieves consist of a solid stainless steel sieve frame of high stability for reliable sieving results.
The sieves can be easily combined with all other sieve brands. Each sieve that leaves our company comes with a test report.
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Test Sieves
200/203 mm Mesh Sieves
The well-proven RETSCH sieves consist of a solid stainless steel sieve frame of high stability for reliable sieving results. Paying close attention to mesh-specific requirements, the sieve fabric is precisely joined into the frame and tautened. The individual laser engraving of each RETSCH test sieve provides a clear and accurate labeling with full traceability.
The sieves can be easily combined with all other sieve brands. Each sieve that leaves the company comes with a test report or, at your request, with a special inspection certificate in conformity with national and international standards (PDF). RETSCH calibration certificates confirm a great number of precision measurements, thus ensuring an even higher statistical reliability for your quality control.
RETSCH test sieves are available in many sizes and varieties, primarily in the four frame sizes most widely used in laboratory analytics:
- 200 x 50 mm, 200 x 25 mm
- 8“x 2“ (203 x 50 mm), 8“x 1“ (203 x 25 mm)
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Sieve Shakers
AS 200 Basic Sieve Shaker
The vibratory sieve shakers of the series AS 200 are used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an optimal adaption for every product. Sharp fractions are obtained even after short sieving times.
The AS 200 basic sieve shaker is the economical alternative of the series with familiar quality and reliability. It features digital setting and display of performance and time.
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Sieve Shakers
AS 200 Control Sieve Shaker
The analytical sieve shakers of the series AS 200 are used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an optimal adaption for every product. Sharp fractions are obtained even after very short sieving times.
With its all-digital controls, up to 99 sieving programs and calibration certificate the sieve shaker AS 200 control is indispensable for all users who attach importance to precision and operational convenience and need to comply with the guidelines of the ISO 9001.
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Sieve Shakers
AS 200 Digit Sieve Shaker
The analytical sieve shakers of the series AS 200 are used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an optimal adaption for every product. Sharp fractions are obtained even after short sieving times.
The AS 200 digit cA sieve shaker is recommended whenever controlled amplitude, digital display of vibration height and time and interval operation are required.
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Sieve Shakers
AS 200 Jet Sieve Shaker
The new Air Jet Sieve AS 200 jet is particularly suitable for sieve cuts of powdered materials which require efficient dispersion and deagglomeration. The option to store up to 10 SOPs and the automatic vacuum regulator (accessory) guarantees reproducible and meaningful results.
Innovative features such as the Open Mesh function, the selection of the nozzle speed as well as optional use of standard 2″ high test sieves perfects the new air jet technology.
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Sieve Shakers
AS 200 Tap Sieve Shaker
The analytical sieve shaker AS 200 tap is used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. Its tapping motion supports the sieve analysis of certain products such as activated carbon, abrasives, metal powder, spices and diamonds, as specified in the corresponding standards.
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Sieve Shakers
AS 300 Control Sieve Shaker
The analytical sieve shaker AS 300 control is used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an optimal adaption for every product. Sharp fractions are obtained even after short sieving times.
The AS 300 control is particularly designed for test sieves with a diameter of 305 mm (12″). Compared to sieves with a diameter of 200 mm, a 2.25 times higher sieving surface is available. Therefore, the average sieving times can be greatly reduced with the AS 300 control. With its all-digital controls and calibration certificate the sieve shaker AS 300 control is indispensable for all users who attach importance to precision and operational convenience and need to comply with the guidelines of the ISO 9001.
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Sieve Shakers
AS 400 Control Sieve Shaker
The analytical sieve shaker AS 400 control is used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring.
The AS 400 control is used for the sieving of dry goods with test sieves of a diameter up to 400 mm. In this, the uniform, horizontal circular motion ensures exact separation of fine and coarse-grained products.
With its all-digital controls and calibration certificate the AS 400 control is indispensable for all users who attach importance to precision and operational convenience and need to comply with the guidelines of the ISO 9001.
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Sieve Shakers
AS 450 Basic Sieve Shaker
The AS 450 basic, is a budget-priced alternative to the AS 450 control sieve shaker. The new sieve shaker covers a size range from 25 μm to 125 mm and accepts loads of up to 15 kg. Time and amplitude are digitally set, a memory function allows storage of one program. The AS 450 basic is suitable for dry and wet sieving. It is the economic solution for customers who need to sieve larger quantities of dry material with reliable results.
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Sieve Shakers
AS 450 Control Sieve Shaker
The analytical sieve shaker AS 450 control is used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an optimal adaption for every product. Sharp fractions are obtainable even after very short sieving times.
With the sieve shaker AS 450 control RETSCH have designed their first sieve shaker for 400 mm and 450 mm sieves which operates with a three-dimensional sieving motion. It can be used for dry and wet sieving. The optimized electromagnetic drive technology allows for an amplitude up to 2.2 mm even with maximum loads up to 25 kg. This makes the AS 450 superior to all other known sieve shakers based on conventional electromagnetic or imbalance drives.
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Grinding & Milling, Jaw Crushers
BB 100 Jaw Crusher
The Jaw Crusher BB 100 is used for the rapid, effective crushing and pre-crushing of medium-hard, hard, brittle and tough materials.
Its variety of materials offered including heavy-metal free steel, its efficiency and safety makes this Jaw Crusher ideal for sample preparation in laboratories and industrial plants.
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Grinding & Milling, Jaw Crushers
BB 200 Jaw Crusher
The Jaw Crusher BB 200 is used for the rapid, effective crushing and pre-crushing of medium-hard, hard, brittle and tough materials. Its variety of materials offered, including heavy-metal free steel, its efficiency and safety makes it ideal for sample preparation in laboratories and industrial plants.
For small amounts of sample the BB 200 can be used batch-wise; for larger amounts it can be operated continuously. Control of the gap width and zero point adjustment allow for reproducible results. The Belleville spring washer protects the Jaw Crusher from overloads and in conjunction with maintenance- and lubricant-free sliding bearings guarantees a long service life.
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Grinding & Milling, Jaw Crushers
BB 300 Jaw Crusher
The Jaw Crusher BB 300 is used for the rapid, effective crushing and pre-crushing of medium-hard, hard, brittle and tough materials. Its variety of materials offered, including heavy-metal free steel and its efficiency and safety makes the BB 300 ideal for sample preparation in laboratories and industrial plants.
For small amounts of sample the Jaw Crusher BB 300 can be used batch-wise; for larger amounts it can be operated continuously. Control of the gap width and zero point adjustment allow for reproducible results. The Belleville spring washer protects the unit from overloads and in conjunction with the central lubrication guarantees a long service life.
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Grinding & Milling, Jaw Crushers
BB 400 Jaw Crusher
The Jaw Crusher BB 400 is used for the rapid, effective crushing and pre-crushing of medium-hard, hard, brittle and tough materials. Its variety of materials offered, including heavy-metal free steel, its efficiency and safety makes it ideal for sample preparation in laboratories and industrial plants.
For small amounts of sample the BB 400 is used batch-wise; for larger amounts it can be operated continuously. Control of the gap width and zero point adjustment allow for reproducible results.
Thanks to the modular construction of housing and frame this jaw crusher is suitable for a wide range of applications.
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Grinding & Milling, Jaw Crushers
BB 50 Jaw Crusher
The Jaw Crusher BB 50 has been specially designed for sample preparation in the laboratory. It is used for the rapid, effective crushing and pre-crushing of medium-hard, hard, brittle and tough materials.
The space-saving, dust-tight instrument fits on any laboratory bench and is ideally suited to crush small amounts of sample with large feed sizes gently and without loss.
To avoid metallic contamination, the grinding chamber of the jaw crusher is available of ceramic materials. With its digital gap width display and zero point adjustment the jaw crusher BB 50 allows for reproducible results.
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Grinding & Milling, Jaw Crushers
BB 500 Jaw Crusher
The Jaw Crusher BB 500 is used for rapid, effective, crushing and pre-crushing of medium-hard, hard, brittle and tough materials. Its variety of materials offered, including heavy-metal free steel, and its efficiency and safety makes the BB 500 ideal for sample preparation in laboratories and industrial plants.
For small amounts of sample the BB 500 is used batch-wise; for larger amounts it can be operated continuously. Control of the gap width and zero-point adjustment allow for reproducible results.
The BB 500 with its steep crushing chamber and powerful drive provides for very effective crushing kinematics.
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Grinding & Milling, Jaw Crushers
BB 600 Jaw Crusher
The Jaw Crusher BB 600 is used for rapid, effective, crushing and pre-crushing of medium-hard, hard, brittle and tough materials.
Due to the low installation height (1 m), the BB 600 is ideally suited for continuous operation in automatic installations and sampling stations. Thanks to the compact design of the BB 600 it may replace a jaw crusher in existing installations.
Small sample amounts with large particle sizes can be crushed batch-wise in the Jaw Crusher BB 600.
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BeadBeater
BeadBeater
The BeadBeater disrupts microorganisms, single-cell preparations and pulverized plant and animal tissue with better than 95 percent efficiency. Up to 80 grams (wet weight) of cells can be processed in a typical three minute run. Relying on a unique crushing or cracking action rather than high shear forces found with a French Press or sonicator, a Teflon impeller rotating at high speed forces thousands of minute glass beads to violently collide in a special clover-leaf shaped vessel. Cells are disrupted quickly, efficiently and safely in the sealed system. The apparatus is easy to clean, has a small footprint, requires no auxiliary supplies or equipment and is essentially maintenance free. Beads settle out in seconds and are reusable. The apparatus is easy to clean, has a small footprint, requires no auxiliary supplies or equipment and is essentially maintenance free. Beads settle out in seconds and are reusable.
The BeadBeater comes complete with a 350 ml polycarbonate chamber, rotor assembly, motor base, ice-water cooling jacket and one pound of glass beads of your choice.
- Ideal for isolating proteins, enzymes and intact intracellular organelles
- Powerful 3/8 HP motor. Only durable, non-toxic components contact product
- Designed for batches up to 80g (wet wt.) in 200 ml of medium
- Highly efficient disruption in shortest times possible
- Sample cooling during homogenization is simple and efficient
Controlling Heat
Like many mechanical cell disruption techniques, the Beadbeating process generates heat. In general for every minute of beadbeating there is a 10 deg rise in sample temperature. Should that be a problem, the ice-water jacket included with the BeadBeater helps keep this temperature increase under control. If you require even more temperature control, stainless steel or aluminum sample chambers are offered (see accessories).
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Grinding Media
Ceramics, includes Aluminum Oxide and Zirconium Oxide (sp.gr. 3.5 to 6.1)
Alumina Grinding Media (sp.gr. 2.8 to 3.9)
Available in a range of specific gravities which rises as the alumina (Al2O3) content increases. The grinding media is actually alumina particles held in place by an SiO2 glass phase. Sizes from 400 microns to over 1 inch in beads, balls, satellites (ball with bands) and cylinders. Low to medium cost, small sizes are more costly.
Fused Zirconium oxide Grinding Media (sp.gr. 3.8) Smooth surface leads to low mill wear and longevity. Sizes from 200 microns to 2.5mm. Medium cost.
Sintered Zirconium silicate Grinding Media (sp.gr. 4.0-4.6) ZrO2 + SiO2 + Al2O3, with and without Y2O3 stabilizer. Tight size spreads from 200 microns to 2.6mm. Low to medium cost.
High density Zirconium oxide Grinding Media (sp.gr. 5.5) 95% ZrO2 + MgO stabilizer. Beads from 400 microns to 3.35mm. Cylinders and satellites to 1-1/4″. Medium cost.
Rare Earth stabilized Zirconium oxide Grinding Media (sp.gr. 5.8 to 6.1) ZrO2 + CeO. Yellow or black, very hard. Sizes from 400 microns to 2″. Medium cost.
Yttrium stabilized Zirconium oxide Grinding Media (sp.gr. 6.0) 95% ZrO2 + 5% Y2O3. Best wear properties of all grinding media, very round and very smooth, narrow size spreads. High cost is offset by low wear and minimal contamination.
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Cryogenic Milling, Grinding & Milling
CryoMill
The CryoMill is tailored for cryogenic grinding. The grinding jar is continually cooled with liquid nitrogen from the integrated cooling system before and during the grinding process. Thus the sample is embrittled and volatile components are preserved. The liquid nitrogen circulates through the system and is continually replenished from an Autofill system in the exact amount which is required to keep the temperature at -196 °C.
Powerful impact ball milling results in a perfect grinding efficiency. The Autofill system avoids direct contact with LN2 and makes cryogenic grinding very safe. Its versatility (cryogenic, wet and dry grinding at room temperature) makes the CryoMill the ideal grinder for quantities up to 20 ml.You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.
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Disc Mills, Grinding & Milling
DM 200 Disc Mill
Thanks to its robust design, the Disc Mill DM 200 can be used under rough conditions in laboratories and pilot plants, as well as online for the quality control of raw materials. The powerful DM 200 requires only a few minutes to achieve the desired grind size.
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