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| Company | RETSCH | RETSCH | RETSCH | RETSCH |
| Item | CryoMill | Cutting Mill SM 300 | Knife Mill Grindomix GM 200 | Mixer Mill MM 500 control |
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| Catalog Number | CryoMill | SM 300 | GM 200 | MM 500 control |
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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 | Cutting mills are suitable for the grinding of soft, medium-hard, tough, elastic, fibrous, and heterogeneous mixes of products. The new Cutting Mill SM 300 excels especially in the tough jobs where other cutting mills fail.
The high torque of the new 3 kW drive with RES technology (additional Cutting mills are suitable for the grinding of soft, medium-hard, tough, elastic, fibrous, and heterogeneous mixes of products. The new Cutting Mill SM 300 excels especially in the tough jobs where other cutting mills fail.
The high torque of the new 3 kW drive with RES technology (additional flywheel mass) allows for an exceptionally effective preliminary size reduction of heterogeneous mixtures, such as waste or electronic components. Analytical fineness is often achieved in one working run.
The cutting mill is used successfully for a great variety of materials. The sample is only moderately warmed up during the grinding process so that the mill is perfectly suitable for grinding temperature-sensitive materials. Another innovation is the wide, freely selectable speed range from 700 to 3,000 min-1. In combination with the wide choice of bottom sieves, hoppers and collecting vessels, the mill can be easily adapted to varying application requirements.
Features - Powerful size reduction thanks to 3 kW drive with high torque and RES technology
- Perfect adaptation to application requirements by variable speed from 700 to 3,000 min-1
- Optimum cutting effects thanks to double acting cutting bars
- Quick and easy cleaning due to fold-back hopper, smooth surfaces and push-fit rotor
- Defined final fineness due to bottom sieves with aperture sizes from 0.25 - 20 mm
- Wide range of accessories including various hoppers, collection systems, rotors and sieves
- Highest safety standards due to engine brake, central locking device, electronic safety check and base frame
... 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 | The mixer mill MM 500 control is a unique compact, versatile bench-top unit which has been developed to work in a temerature range from -100°C to + 100°C and thus either cool samples or heat them up while grinding. It is used for dry, wet and cryogenic grinding of up to 2 x 45 ml sample material The mixer mill MM 500 control is a unique compact, versatile bench-top unit which has been developed to work in a temerature range from -100°C to + 100°C and thus either cool samples or heat them up while grinding. It is used for dry, wet and cryogenic grinding of up to 2 x 45 ml sample material within seconds. With a maximum frequency of 30 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. Hence, the MM 500 control is the first mixer mill in the market to provide a real alternative to grinding in a planetary ball mill with special cooling options and with more comfortable handling - powerful grinding by impact and friction with up to 30 Hz
- pulverization of two samples down to the nanometer range < 0.1 micron
- multi-cavity jars 2x 25 ml or 4 x 10 ml available
- adapter for keeping 2 ml plastic tubes or 2 ml steel tubes available
- suitable for long-term grinding processes up to 99 h
- suitable for mechanochemistry applications
- 3 different grinding modes (dry, wet or cryogenic)
- memory for 12 SOPs and 4 program cycles
- Screw-Lock jars, pressure-tight up to 5 bar
GrindControl to measure pressure and temperature available - grinding under inert gas (optional)
- jar design allows full use of the volume, also for wet grinding
- jars remain conveniently clamped for periodic sample extraction or visual checks
... Read More |
| Principle | Impact and Friction | Shearing and Cutting | Cutting | Impact and Friction |
| Sample Size | ≤8 mm | Up to 60 x 80 mm | ~ 40 mm | ≤10 mm |
| Sample Type | Hard, Medium-Hard, Soft, Brittle, Elastic or Fibrous | Soft, Medium-Hard, Tough, Elastic or Fibrous | Soft, Medium-Hard, Elastic, Containing Water/Fat/Oil, Dry or Fibrous | Hard, Medium-Hard, Soft, Brittle, Elastic 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 by Cutting: Agriculture, Biology, Chemistry / Plastics, Engineering / Electronics, Environment / Recycling, Food, Medicine / Pharmaceuticals | Size Reduction, Homogenization and Mixing: Agriculture, Biology, Food, Medicine / Pharmaceuticals | 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 |
| Speed | 3 to 30 Hz | 700 to 3000 min-1 | 2,000 to 10,000 min-1 | 3 to 30 Hz |
| Rotor Type | grinding jar and balls | Parallel Section Rotor and 6-Disc Rotor | Stainless steel knife, knife titanium; CryoKit | grinding jar and balls |
| Final Fineness | ~ 5 um | 0.25 to 20 mm | < 300 um | ~0.1 µm |
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