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| Company | RETSCH | RETSCH | RETSCH | RETSCH |
| Item | Mixer Mill MM 400 | Knife Mill GRINDOMIX GM 300 | Mixer Mill MM 400 | Rotor Beater Mill SR 300 |
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| Catalog Number | MM 400 | GM 300 | MM 400 | SR 300 |
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| Description | The mixer mill MM 400 is a compact versatile bench-top unit, which has been developed specially for dry, wet and cryogenic grinding of small amounts of sample.
It can mix and homogenize powders and suspensions in only a few seconds. It is also perfectly suitable for the disruption of biological The mixer mill MM 400 is a compact versatile bench-top unit, which has been developed specially for dry, wet and cryogenic grinding of small amounts of sample.
It can mix and homogenize powders and suspensions in only a few seconds. It is also perfectly suitable for the disruption of biological cells as well as for DNA/RNA extraction. With its high performance and great flexibility the MM 400 is a unique product in the market.
Features - Reproducible, efficient grinding, mixing and homogenization in seconds
- Powerful grinding by impact and friction, up to 30 Hz for up to 20 samples per run
- 3 different grinding modes (dry, wet or cryogenic)
- Screw-top grinding jars for leak-proof grinding
- 9 SOPs can be stored
- Wide range of accessories including various jar and ball sizes, adapter racks, grinding tool materials, CryoKit
... Read More | The new knife mill GRINDOMIX GM 300 is the ideal instrument for the grinding and homogenization of foodstuffs. It allows to process sample volumes up to 4.5 liters quickly and reproducibly.
With four sharp, robust blades and a powerful motor which can reach temporary peaks of 3 kW, it is ideal for The new knife mill GRINDOMIX GM 300 is the ideal instrument for the grinding and homogenization of foodstuffs. It allows to process sample volumes up to 4.5 liters quickly and reproducibly.
With four sharp, robust blades and a powerful motor which can reach temporary peaks of 3 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 300 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 4,500 ml feed quantity due to a powerful 1.1 kW motor (peak power input >3 kW)
- 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 500 to 4,000 min-1 with an increment of 100 min-1
- Optional gravitation lid for automatic reduction of the grinding chamber volume
- 10 SOPs can be stored
- Grinding jar in plastic and stainless steel available
... Read More | 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. It is also very useful for 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. It is also very useful for mechanosynthesis applications with RAMAN readyness and a grinding time up to 8 h. It is also the most suitable instrument for biological applications such as cell disruption for nucleic acids or protein extraction. It is the first mixer mill wil calibrated frequency and time for most reproducible results- powerful grinding by impact and friction with up to 30 Hz
- pulverization of two samples down to 5 micron
- adapter for keeping 1.5, 2 or 5 ml plastic tubes or 2 ml steel tubes available
- adapter for keeping 4 x 50 ml conical tubes or 30 ml wide-mouth bottles available
- adapter for keeping 4 x 5 ml steel tubes available
- suitable for long-term grinding processes up to 8 h
- suitable for mechanochemistry applications
- 3 different grinding modes (dry, wet or cryogenic)
- memory for 8 SOPs and 4 program cycles
- Screw-Top jars from 5-50 ml
10 ml PMMA jars for RAMAN applications
... Read More | The Rotor Beater Mill SR 300 is suitable for coarse and fine size reduction, either in batches or continuously. It can process dry, soft, medium-hard, organic and inorganic substances.
Its high speed in comparison to the SR 200 allows a significantly higher throughput and fineness.
The SR 300 isThe Rotor Beater Mill SR 300 is suitable for coarse and fine size reduction, either in batches or continuously. It can process dry, soft, medium-hard, organic and inorganic substances.
Its high speed in comparison to the SR 200 allows a significantly higher throughput and fineness.
The SR 300 is intended for universal use: from sample preparation in laboratories up to preparing sample batches in pilot plants or production facilities. The grinding chamber, the feed hopper and the material inlet are completely made from high quality stainless steel.
Features
- Suitable for batchwise operation of larger quantities
- Central locking device
- Wide range of accessories including various collection and feeding systems, rotors and sieves
- High final fineness
- Exchangeable grinding and sieve inserts
- Grinding chamber, feed hopper and material inlet and outlet of stainless steel
- Optional grinding inserts 180° for grinding of hard-brittle materials by additional impact
- Optional distance rotor to reduce frictional heat
- Removable hopper for easy cleaning
- Motor brake
- Defined final fineness due to bottom sieves with aperture sizes from 0.08 - 10 mm
... Read More |
| Principle | Impact and Friction | Cutting | Impact and Friction | Impact and Shearing |
| Sample Size | < = 8 mm | ~ 130 mm | ≤8 mm | < 15 mm |
| Sample Type | Hard, Medium-Hard, Soft, Brittle, Elastic or Fibrous | Soft, Medium-Hard, Elastic, Containing Water/Fat/Oil, Dry or Fibrous | Hard, Medium-Hard, Soft, Brittle, Elastic or Fibrous | Soft or Medium-Hard |
| Applications | Size Reduction, Mixing, Homogenization, Cell Disruption and Cryogenic Grinding: Agriculture, Biology, Chemistry / Plastics, Construction Materials, Engineering / Electronics, Environment / Recycling, Food, Geology / Metallurgy, Glass / Ceramics, 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, cell disruption | Size Reduction and Deagglomeration: Agriculture, Chemistry / Plastics, Construction Materials, Environment / Recycling, Food, Medicine / Pharmaceuticals |
| Speed | 3 to 30 Hz | 500 to 4000 min-1 | 3 to 30 Hz | 8100 or 9700 min-1 |
| Rotor Type | grinding jar and balls | Stainless steel knife, knife with titanium-niob coating | grinding jar and balls | Rotor Beater, Standard and Distance |
| Final Fineness | ~ 5 um | < 300 um | ~5 µm | < 50 um |
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