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Fluid Mixing and Degassing, Non Vacuum Units
SK-350 TII – Twin 400 ml Cups
This advanced planetary centrifugal mixer builds on the basic individual revolution and rotation speed control system by adding enhanced processing functions for more demanding materials. The unit allows the revolution speed and rotation speed to be set independently, giving users greater control over mixing, dispersion, and defoaming conditions. With the ability to process up to 700 g of material using two 400 mL containers weighing up to 350 g each, it is well suited for laboratory-scale development and material testing. In addition to its standard mixing and defoaming capabilities, the model includes high-speed mode for intensive processing and anti-separation mode, which helps suppress separation in materials with different specific gravities, such as powder-and-liquid mixtures.
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Fluid Mixing and Degassing, Vacuum Units
SK-350TVS – Twin 400 ml Cups With Vacuum
This advanced planetary centrifugal mixer builds on the basic individual revolution and rotation speed control system by adding enhanced processing functions for more demanding materials. The unit allows the revolution speed and rotation speed to be set independently, giving users greater control over mixing, dispersion, and defoaming conditions.
With the ability to process up to 700 g of material using two 400 mL containers weighing up to 350 g each, it is well suited for laboratory-scale development and material testing. In addition to its standard mixing and defoaming capabilities with vacuum assist, the model includes high-speed mode for intensive processing and anti-separation mode, which helps suppress separation in materials with different specific gravities, such as powder-and-liquid mixtures.
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Fluid Mixing and Degassing, Non Vacuum Units
SK-4000T – Twin 4.0 Liter Cups
The SK-4000T production model is engineered to deliver high-quality material processing by combining high-speed revolution with a wide-radius gyration motion. This advanced mixing action improves the blending efficiency of powders and liquids, making it ideal for demanding production applications.
By precisely controlling the timing at which the rotation speed increases, the system enhances the mixing rate while helping to suppress lump formation, resulting in a more uniform and consistent final product. The combination of powerful motion control and optimized mixing performance makes this model well suited for producing high-quality materials with improved process reliability.
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Fluid Mixing and Degassing, Vacuum Units
SK-4000TV – Twin 4.0 Liter Cups With Vacuum
The SK-4000TV with vacuum assist degassing and defoaming production model is engineered to deliver high-quality material processing by combining high-speed revolution with a wide-radius gyration motion. This advanced mixing action improves the blending efficiency of powders and liquids, making it ideal for demanding production applications.
By precisely controlling the timing at which the rotation speed increases, the system enhances the mixing rate while helping to suppress lump formation, resulting in a more uniform and consistent final product. The combination of powerful motion control and optimized mixing performance makes this model well suited for producing high-quality materials with improved process reliability.
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Fluid Mixing and Degassing, Non Vacuum Units
SK-BS12T Twin Barrel & Syringe Mixer
This barrel and syringe-specific planetary centrifugal mixer is designed for efficient mixing and deaeration using 12 oz barrels (360 mL) and 6 oz barrels (180 mL). With independent revolution and rotation speed control, the mixer delivers uniform material dispersion while removing fine air bubbles in a short processing time.
The ability to select the proper barrel size based on production volume improves productivity, workability, and material handling efficiency. For 6 oz barrel operation, dedicated adapters or spacers are required to ensure proper fit and performance.
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Fluid Mixing and Degassing, Microplate Units, Non Vacuum Units
SK-MP12T Large Microplate Mixer
This high-speed microplate mixer is designed to deliver uniform sample mixing and rapid removal of fine air bubbles, helping improve the reliability and consistency of measurement results. It can process multiple microplates at once, enabling simultaneous mixing and defoaming in a short time for greater laboratory efficiency.
With dedicated adapters, the system accommodates 18-well, 96-well, 384-well, and 1536-well full-size microplates, making it highly versatile for a wide range of applications. Optional adapters also allow mixing and defoaming of microtubes and culture tubes, while the unit can spin down droplets from up to 12 PCR plates and microplates at the same time, further streamlining sample preparation workflows.
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Cutting Mills
SM 300 Cutting Mill
Cutting mills are suitable for the grinding of soft, medium-hard, tough, elastic, fibrous, and heterogeneous mixes of products. Thanks to the powerful 3 kW drive with high torque and RES technology, the Cutting Mill SM 300 excels especially in the tough jobs where other cutting mills fail. This mill allows for perfect adaptation to application requirements by variable speed from 100 to 3,000 min-1. A range of bottom sieves with aperture sizes from 0.25 – 20 mm is available, ensuring a defined final fineness.
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Cutting Mills
SM 50 Cutting Mill
The SM 50 revolutionizes laboratory workflows and solves multiple problems at once. With its innovative design featuring a removable milling chamber, the SM 50 simplifies cleaning and reassembly, saving up to 30 % time.
At the same time, the powerful benchtop cutting mill guarantees almost 100 % sample recovery with contamination-free sample preparation.
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Rotor Mills
SR 300 Rotor Beater Mill
The Rotor Beater Mill SR 300 is suitable for coarse and fine size reduction. It can process dry, soft, medium-hard, organic and inorganic substances. For increased sample discharge and for processing heat-sensitive samples, an optionally available cyclone unit can be used instead of the gravity outlet.
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Carbon Steel Balls, Grinding Media, Stainless Steel Balls, Steel Media
Stainless Steel Balls
Stainless steel balls are a versatile, corrosion-resistant media used across a wide range of precision, industrial, laboratory, and processing applications. They are commonly selected for grinding, milling, mixing, blending, bearings, valves, pumps, check valves, flow control, polishing, burnishing, food processing, chemical processing, medical devices, aerospace components, and general industrial use. Their combination of strength, durability, cleanability, and resistance to wear and corrosion makes them ideal for applications where performance and material compatibility are critical.
We carry stainless steel balls in a wide range of grades, including 302, 304, 304L, 316, 316L, 430, 420HC, 440C, 904L, and Nitronic 50. Each grade offers different advantages depending on the application, from general-purpose corrosion resistance to high hardness, improved chemical resistance, magnetic properties, or enhanced performance in demanding environments. All sizes are available to support laboratory testing, precision manufacturing, grinding media requirements, and full-scale production needs.
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Fluid Bed Dryer
TG 200 Fluid Bed Dryer
The fluid bed dryer TG 200 is used in quality control, sample preparation, and R&D departments. It permits the gentle drying of organic, inorganic, chemical, or pharmaceutical bulk materials without localized overheating. Suitable materials can be coarse, fine, crystalline, fibrous, or leafy. The powerful fan of the fluid bed dryer ensures optimal air throughput so that the products to be dried are loosened up and thoroughly mixed resulting in short drying times. With the interval operation, the fluidized bed is mixed even better. Temperature, drying time and air volume can be set digitally and adjusted continuously.
The TG 200 now offers an extended maximum time setting, increased from 99 minutes to 9 hours, with several intermediate steps. This enhancement allows users to initiate longer drying processes, including overnight operations, without any risk. Continuous drying remains an available option.
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Drum Mills
TM 300 Drum Mill
The TM 300 Drum Mill is utilized for preparing granules and powders through a grinding process conducted in either dry or wet conditions. This versatile grinder can function as either a Ball or a Rod Mill by employing the corresponding module. To ensure an efficient grinding process, it is essential to use a sufficient number of balls or rods. Depending on the sample material, a final fineness below 20 microns can be achieved.
The drum mill comprises a gear motor mounted on a robust steel frame, a set of separation grids, and a sample collector. The TM 300 is designed with a yoke and locking mechanism that facilitates easy access to the sample. Cleaning is made convenient by a quick-release locking mechanism, allowing effortless removal of the drum cover.
The TM 300 accepts sample volumes up to 9 l and is therefore also suited for upscaling processes.
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Drum Mills
TM 500 Drum Mill
The Drum Mill TM 500 is a laboratory ball mill designed to grind large sample volumes up to 35 l. It accepts initial feed sizes of up to 20 mm and can achieve grind sizes down to 15 µm by friction and impact.
Hard, brittle or fibrous samples are pulverized in the 150 l drum filled with 80 kg grinding balls. The variable speed of 10 to 50 rpm, different grinding ball sizes and the possibility of long-term grindings of up to 100 h ensure perfect adaption to sample properties as well as reproducible results.
A Drum Mill TM 500 foodGrade model featuring a stainless steel 316L drum and hopper is available for applications where the sample must not be contaminated in any way.
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Carbon Steel Balls, Grinding Media, Steel Media, Tungsten Media
Tungsten Balls
Tungsten balls are high-density, wear-resistant media designed for demanding applications where mass, hardness, and durability are critical. With their exceptional weight-to-size ratio, tungsten balls provide strong impact energy in a compact form, making them well suited for precision grinding, milling, counterweights, balancing, vibration control, flow control, and specialty industrial applications. Their excellent resistance to deformation, heat, and abrasion allows them to perform reliably in harsh operating environments where standard steel or ceramic media may not provide sufficient density or service life.
Tungsten balls are commonly used in laboratory and production grinding systems, ball mills, vibratory mills, bearings, valves, aerospace components, oil and gas tools, medical devices, and high-performance mechanical assemblies. They are especially valuable in applications requiring maximum mass in limited space, improved grinding efficiency, or long-term dimensional stability. Available in a range of sizes and grades, tungsten balls offer a premium solution for engineers and manufacturers seeking dense, durable, and high-performance spherical media.
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200 mm, 203 mm Diameter, 8", Sieve Screens
Woven Wire Mesh Sieves – ø 200 mm / 203 mm
The well-proven RETSCH woven wire mesh 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 mesh 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. 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 different diameters, mesh 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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