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Carbon Steel Balls, Glass Balls, Grinding Media, Stainless Steel Balls, Steel Media
Glass Balls and Beads
Carbon Steel Balls, Glass Balls, Grinding Media, Stainless Steel Balls, Steel MediaGlass Balls and Beads
Glass balls and beads are a versatile grinding, milling, mixing, and dispersion media used across a wide range of laboratory and industrial applications. Available in Soda Lime Glass and Borosilicate Glass, these media provide a clean, cost-effective option for particle size reduction, sample preparation, blending, and surface finishing where metallic contamination must be avoided. Glass balls and beads are commonly used in paints, inks, pigments, coatings, chemicals, minerals, pharmaceuticals, cosmetics, food-related processing, and precision component applications.
Soda Lime Glass beads are an economical choice for general-purpose grinding, dispersion, polishing, and filling applications. They offer good hardness, smooth surface finish, and reliable performance in many standard milling and processing environments. Borosilicate Glass beads provide improved chemical resistance, lower thermal expansion, and greater durability when working with more sensitive materials, higher temperatures, or chemically active formulations.
Available in a wide range of sizes, glass balls and beads can be selected to match the specific requirements of your mill, material, and desired final particle size. Their smooth, spherical shape helps promote efficient energy transfer, consistent grinding action, and reduced wear on equipment. Whether used for fine grinding, wet milling, dispersion, decorative applications, flow control, or specialty industrial processes, Glen Mills can help supply the right glass media for your application.
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Knife Mills
GM 200 Knife Mill
TThe knife mill GRINDOMIX GM 200 is the ideal instrument for grinding and homogenizing foods and feeds. With two sharp, robust blades and a powerful 1000 W motor, it allows to process sample volumes up to 0.7 liters quickly and effectively.
The GM 200 is not only ideal for homogenizing substances with a high water, oil or fat content but is also perfectly suited for grinding dry, soft and medium-hard products. The quick homogenization process without noteworthy temperature rise ensures preservation of volatile sample components.
Thanks to reproducible setting of parameters, programs and sequences, this mill ensures analytical results with minimum standard deviation. These features plus the wide selection of lids and containers, allowing for adaptation of the mill to individual application requirements, make the GRINDOMIX GM 200 a professional device superior to any commercial household mixer.
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Knife Mills
GM 300 Knife Mill
With its special cutting knife system and variable-volume grinding chamber, the laboratory knife mill GRINDOMIX GM 300 processes a great variety of sample materials quickly and reproducibly to completely homogeneous analytical samples – within seconds!
Thanks to the 5000 ml grinding chamber volume, this mill easily homogenizes an entire loaf of bread or a complete pizza in one working run.Thanks to reproducible setting of parameters and programs, the knife mill GM 300 ensures analytical results with minimum standard deviation. These features plus the wide selection of lids and containers, allowing for adaptation of the mill to individual application requirements, make the GRINDOMIX GM 300 a professional device superior to any commercial household mixer.
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Hammer Mills, Rotor Mills
HM200 Hammer Mill
Hammer mills are used for crushing, pulverizing and deagglomeration of medium-hard, hard, brittle, tough and fibrous samples.
The rugged RETSCH Hammer Mill HM 200 accepts large feed sizes up to 100 mm which can be reduced to less than 0.8 mm, depending on the sample properties.
The mill is ideally suited for processing large volumes batchwise or continuously which ensures high sample throughput. Thanks to features like rugged design, easy handling and quick cleaning, the HM 200 is equally suitable for use in laboratories or pilot plants.
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Jet Mills
Lab Scale Jet Mills
Lab scale jet mills are designed for precise, ultra-fine particle size reduction of dry powders in research, development, and small-batch production environments.
Using high-velocity compressed air or inert gas, the material is accelerated within the grinding chamber where particle-on-particle impact reduces particle size without the need for mechanical grinding media. These systems are well suited for applications requiring narrow particle size distributions, minimal contamination, and scalable process development.
Available in stainless steel construction, our jet mills can also be fitted with abrasion-resistant liners for processing hard, abrasive, or wear-sensitive materials. Their compact design, cleanability, and configurable feed and collection options make them ideal for pharmaceutical, chemical, ceramic, mineral, battery material, and advanced powder processing applications.
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Ball Mills, Mixer Mills
MM 400 Mixer Mill
The Mixer Mill MM 400 is a true multipurpose mill designed for dry, wet and cryogenic grinding of small volumes up to 2 x 20 ml. It mixes and homogenizes powders and suspensions with a frequency of 30 Hz within seconds – unbeatably fast and easy to operate.
The compact benchtop unit is suitable for classic homogenization processes, as well as for biological cell disruption for DNA/RNA and protein extraction. Long processing times up to 99 hours make the MM 400 ideally suited for research applications, for example in mechanochemistry.
With regard to performance and flexibility of this mill, there is no equivalent technology available in the market.
You may also be interested in the mixer mill models MM 500 nano and MM 500 vario which operate with the same functional principle at a frequency of 35 Hz but provide substantially higher performance. For applications which require cooling or heating the sample, the Mixer Mill MM 500 control is the perfect choice. Each RETSCH mixer mill has a specific application focus.
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Ball Mills, Mixer Mills
MM 500 Mixer Mill Control
The MM 500 control is a high energy laboratory ball mill that can be used for dry, wet and cryogenic grinding with a frequency of up to 30 Hz. It is the first mixer mill in the market that allows to monitor and control the temperature of a grinding process.
The temperature area covers a range from -100 to 100 °C. For maximum flexibility, the mill can be operated with various thermal fluids, enabling the use of different tempering devices for cooling or heating. If liquid nitrogen is chosen for cooling, the mill needs to be equipped with the optionally available extension device cryoPad. The innovative cryoPad technology allows to select and control a specific cooling temperature in the range from – 100 to 0 °C for the grinding process.
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Mixer Mills
MM 500 Mixer Mill Nano
The mixer mill MM 500 nano is a compact, versatile bench-top unit which has been developed specially for dry, wet and cryogenic grinding of up to 2 x 45 ml sample material within seconds. With a maximum frequency of 35 Hz, it generates enough energy to produce particles in the nanometer range.
The robust high-performance drive makes the mill suitable for long-term grinding processes up to 99 hours and thus very interesting for research and mechanochemistry.
Hence, the MM 500 nano is a unique mixer mill in the market to provide a real alternative to grinding in a planetary ball mill – with more comfortable handling and less warming effects.
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Ball Mills, Mixer Mills
MM 500 Mixer Mill Vario
Processing 2 to 50 samples in one batch
The new Mixer Mill MM 500 vario is a versatile bench-top unit which provides ultimate performance with maximum flexibility for your sample preparation process.
It is used for dry, wet and cryogenic grinding of small sample amounts with high throughput. The MM 500 vario can be equipped with screw-top grinding jars from 1.5 ml to 50 ml. Available materials include hardened steel, stainless steel, tungsten carbide, agate, zirconium oxide, PTFE.For biological applications such as homogenization of plant materials, tissues or for cell disruption via bead beating, the MM 500 vario can be equipped with different adapters for single-use vials from 0.2 – 5 ml.
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Sieve Screens
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.SKU: n/a -
Jet Mills, Production Scale Jet Mills
Pilot and Production Jet Mills
Pilot and production size jet mills are designed for reliable ultra-fine grinding of dry powders from scale-up testing through full production processing. These systems use high-velocity compressed air or gas to create particle-to-particle collisions inside the grinding chamber, reducing material without the use of mechanical grinding media.
Available in stainless steel construction and with specialized liner options for abrasive or difficult materials, they can be configured to meet a wide range of process requirements. Pilot size systems are ideal for process development, batch optimization, and confirming production parameters, while larger production models provide the capacity, durability, and efficiency needed for continuous or high-volume powder processing.
With options for feeding, collection, filtration, containment, and sanitary designs, Glen Mills jet milling systems are well suited for pharmaceutical, chemical, ceramic, mineral, battery material, pigment, and advanced powder applications.
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Ball Mills, Planetary Ball Mill
PM 100 Planetary Ball Mill
The Planetary Ball Mill PM 100 is a powerful benchtop model with a single grinding station and an easy-to-use counterweight which compensates masses up to 8 kg. It allows for grinding up to 220 ml sample material per batch.
The extremely high centrifugal forces of Planetary Ball Mills result in very high pulverization energy and therefore short grinding times.
The PM 100 can be found in virtually all industries where the quality control process places the highest demands on purity, speed, fineness and reproducibility.
The mill is ideally suited for tasks in research like mechanochemistry (co-crystal screening, mechano-synthesis, mechanical alloying and mechanocatalysis), or ultrafine colloidal grinding on a nanometer scale, as well as for routine tasks such as mixing and homogenizing soft, hard, brittle or fibrous materials.
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Ball Mills, Planetary Ball Mill
PM 200 Planetary Ball Mill
The Planetary Ball Mill PM 200 is a powerful benchtop model with 2 grinding stations for grinding jars with a nominal volume of 12 ml to 125 ml.
The extremely high centrifugal forces of Planetary Ball Mills result in very high pulverization energy and therefore short grinding times.
The PM 200 can be found in virtually all industries where the quality control process places the highest demands on purity, speed, fineness and reproducibility.
The mill is ideally suited for tasks in research like mechanochemistry (mechano-synthesis, mechanical alloying and mechanocatalysis), or ultrafine colloidal grinding on a nanometer scale, as well as for routine tasks such as mixing and homogenizing soft, hard, brittle or fibrous materials.
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Ball Mills, Planetary Ball Mill
PM 300 Planetary Ball Mill
The Planetary Ball Mill PM 300 is a powerful and ergonomic benchtop model with two grinding stations for grinding jar volumes up to 500 ml. This setup allows for processing up to 2 x 220 ml sample material per batch. Thanks to the high maximum speed of 800 rpm, extremely high centrifugal forces result in very high pulverization energy and consequently in short processing times.
The PM 300 is ideally suited for virtually all industries where the quality control process places the highest demands on purity, speed, fineness and reproducibility. Thanks to its enormous energy input of up to 64.4 times the acceleration of gravity, this mill is the perfect choice for tasks in research like mechanochemistry (co-crystal screening, mechanosynthesis, mechanical alloying and mechano-catalysis), or for ultrafine colloidal grinding on a nanometer scale.
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Ball Mills, Planetary Ball Mill
PM 400 Planetary Ball Mill
The PM 400 is a robust floor model with 4 grinding stations and accepts grinding jars with a nominal volume from 12 ml to 500 ml. It processes up to 8 samples simultaneously which results in a high sample throughput.
The extremely high centrifugal forces of Planetary Ball Mills result in very high pulverization energy and therefore short grinding times.
The mill is ideally suited for tasks in research like mechanochemistry (co-crystal screening, mechano-synthesis, mechanical alloying and mechanocatalysis), or ultrafine colloidal grinding on a nanometer scale, as well as for routine tasks such as mixing and homogenizing soft, hard, brittle or fibrous materials.
For mechanical alloying of hard-brittle materials, the PM 400 is available in a special “MA” version.
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