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| Company | RETSCH | RETSCH | RETSCH | RETSCH |
| Item | CryoMill | Knife Mill Grindomix GM 200 | Planetary Ball Mill PM 100 | Vibratory Disc Mill RS 200 |
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| Catalog Number | CryoMill | GM 200 | PM 100 | RS 200 |
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| Description | The CryoMill is a laboratory ball mill specifically designed for this application. It features an integrated cooling system which continually cools the grinding jar with liquid nitrogen before and during the grinding process. Thus, the sample is embrittled and volatile components are preserved.
The The CryoMill is a laboratory ball mill specifically designed for this application. It features an integrated cooling system which continually cools the grinding jar with liquid nitrogen before and during the grinding process. Thus, the sample is embrittled and volatile components are preserved.
The liquid nitrogen is continually supplied from an autofill system in the exact amount required to keep the temperature at –196 °C. The CryoMill's versatility makes it the ideal grinder for sample quantities up to 20 ml.- powerful grinding by impact and friction with up to 30 Hz
- pulverization of two samples down to 5 micron
- The user never comes into direct contact with LN2 which ensures a high degree of operational safety
- adapter for keeping 2 ml plastic tubes or 2 ml steel tubes available
- special jar zirconium oxide available for heavy-metal free grinding
- suitable forgrinding in interval
- 3 different grinding modes (dry, wet or cryogenic)
- memory for 9 SOPs
- Screw-Top jars
... Read More | The new knife mill GRINDOMIX GM 200 is the ideal instrument for the grinding and homogenization of foodstuffs. It allows to process sample volumes up to 1 liters quickly and reproducibly.
With two sharp, robust blades and a powerful motor which can reach temporary peaks of 1 kW, it is ideal for The new knife mill GRINDOMIX GM 200 is the ideal instrument for the grinding and homogenization of foodstuffs. It allows to process sample volumes up to 1 liters quickly and reproducibly.
With two sharp, robust blades and a powerful motor which can reach temporary peaks of 1 kW, it is ideal for homogenizing substances with a high water, oil or fat content as well as for grinding dry, soft and medium-hard products. The GRINDOMIX GM 200 meets and exceeds all special laboratory and analytical requirements and is a professional device superior to any commercial household mixer.
Features - Efficient size reduction of up to 700 ml feed quantity due to a powerful 1 kW motor
- Pre- and fine-grinding in one mill: cutting action in regular mode, grinding by impact in reverse mode, pre-grinding in interval mode
- All parts which come into contact with the sample material are autoclavable
- Perfect adaptation to application requirements by variable speed from 2,000 to 10,000 min-1
- CryoKit available for grinding embrittled or deeply frozen samples
- Optional gravitaty lid for automatic reduction of the grinding chamber volume
- Optional volume reduction lid available
- 8 SOPs and 4 sequences can be stored
- Grinding jar in plastic and stainless steel available
... Read More | Planetary Ball Mills are used wherever the highest degree of fineness is required. Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes. The Planetary Ball Mills are used wherever the highest degree of fineness is required. Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes. The extremely high centrifugal forces of the Planetary Ball Mills result in very high pulverization energy and therefore short grinding times.
The PM 100 CM is a convenient benchtop model with 1 grinding station. It operates in centrifugal mode mode, which leads to a more gentle size reduction process with less abrasion.
Features - Powerful and quick grinding down to nano range
- Perfect stability on lab bench thanks to FFCS technology
- Innovative counter weight and imbalance sensor for unsupervised operation
- Gentle grinding in centrifugal mode
- Comfortable parameter setting via display and ergonomic 1-button operation
- Automatic grinding chamber ventilation
- 10 SOPs can be stored
- Programmable starting time
- Power failure backup ensures storage of remaining grinding time
- Reproducible results due to energy and speed control
- Suitable for long-term trials and continuous use
- 2 different grinding modes (dry and wet)
- Optional pressure and temperature measuring system PM GrindControl
- Measurement of energy input
- Wide range of materials for contamination free grinding
- Safety Slider for safe operation
... Read More | The Vibratory Disc Mill RS 200 is suitable for the extremely quick, loss-free and reproducible grinding of medium-hard, brittle and fibrous materials to analytical fineness. The instrument runs steadily and smoothly, even with heavy grinding sets, at maximum speed thanks to the new Stabilized-Plane-The Vibratory Disc Mill RS 200 is suitable for the extremely quick, loss-free and reproducible grinding of medium-hard, brittle and fibrous materials to analytical fineness. The instrument runs steadily and smoothly, even with heavy grinding sets, at maximum speed thanks to the new Stabilized-Plane-Drive.
With its robust design, the RS 200 has proven to be ideal for use in the building materials sector (cement), in geology, mineralogy, metallurgy and in power plants. Due to the high end fineness and speed the RS 200 is the perfect mill when it comes to preparing samples for spectral analysis.
Features - Reproducible results due to "Stabilized-Plane-Drive" (avoid tumbling of the grinding set)
- Safety interlock
- Variable speed 700 - 1,500 min-1
- Extremely short grinding time
- Agate recognition for automatic speed reduction
- 10 SOPs can be stored
- No sample loss thanks to optimum o-ring seal
- Wide range of materials for contamination free grinding
- Noise-insulated grinding chamber
- Quick-action grinding set clamping device
... Read More |
| Principle | Impact and Friction | Cutting | Impact and Friction | Pressure and Friction |
| Sample Size | ≤8 mm | ~ 40 mm | < 10 mm | <15 mm |
| Sample Type | Hard, Medium-Hard, Soft, Brittle, Elastic or Fibrous | Soft, Medium-Hard, Elastic, Containing Water/Fat/Oil, Dry or Fibrous | Soft, Hard, Brittle or Fibrous - Dry or Wet | Medium-Hard, Hard, Brittle or Fibrous |
| Applications | mechanochemistry, mechanical alloying, size reduction, mixing, homogenization, cryogenic grinding; agriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, food, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals, cell disruption | Size Reduction, Homogenization and Mixing: Agriculture, Biology, Food, Medicine / Pharmaceuticals | Pulverizing, Mixing, Homogenizing and Colloidal Milling: Agriculture, Biology, Chemistry / Plastics, Construction Materials, Engineering / Electronics, Environment / Recycling, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals | Size Reduction, Mixing and Triturating: Construction Materials, Environment / Recycling, Geology / Metallurgy, Glass / Ceramics |
| Speed | 3 to 30 Hz | 2,000 to 10,000 min-1 | 100 to 650 min-1 | 700 to 1500 min-1 |
| Rotor Type | grinding jar and balls | Stainless steel knife, knife titanium; CryoKit | grinding jar and balls | grinding dish with disc (and ring) |
| Final Fineness | ~ 5 um | < 300 um | < 1 um or < 0.1 um for Colloidal Grinding | < 40 um |
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