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.
Tough or elastic materials which cannot be homogenized at room temperature, are safely and effectively homogenized in the knife mill GM 300 with the help of dry ice. For this application, a special cryo lid with a small opening to allow for possible overpressure to escape is available. Used in combination with a stainless-steel container and full metal knife, it ensures safe and efficient cold grinding.
Operation of the laboratory knife mill GRINDOMIX GM 300 is exceptionally comfortable and safe. The grinding container and knife are easily attached without tools. When the set time has expired, the motor is automatically switched off and the container can be removed. Thus, the GRINDOMIX, unlike many commercial household mixers, allows filling and emptying the container outside the mill. The knife remains on the knife holder during the process and can be easily removed for cleaning afterwards. Thanks to this quick and easy procedure, cross contaminations caused by sample residues are successfully prevented. Another advantage of the GRINDOMIX knife mills: the grinding tools are autoclavable. The GM 300 features a convenient 1-button operation with graphic display. All parameters are digitally set and 10 Standard Operating Procedures (SOPs) can be stored.
RETSCH has developed a gravity lid for the GRINDOMIX knife mills which reduces the volume of the grinding container, preventing the sample from escaping the homogenization process by clinging to the container walls. The lid drops under its own weight during grinding and always rests directly on the sample. The result is thorough homogenization of the complete sample material. The gravity lid is also available with overflow channels. It ensures that the cell liquid released by the sample during grinding is returned through these channels to the center of the container, allowing for perfect homogenization.
A range of different containers, lids and knives makes the GRINDOMIX GM 300 a truly universal device. The selection of the grinding container depends on the products to be processed. Standard plastic containers are suitable for the majority of applications. Other accessories are available for special applications.
Automatically adjusts the grinding chamber volume to the changing sample volume.
Ideally suited to homogenize samples with a high water content.
Made of autoclaveable plastic, it allows possible overpressure to escape through a small opening.
Minimum wear when hard sample materials are processed.
4 different knives available: stainless steel, stainless steel with serrated blades, full metal blades & cylinder, with titanium-niobium coating for heavy-metal-free size reduction. All are autoclavable.
Facilitates the recovery of sticky samples from the container.
RETSCH knife mills are suitable for a vast range of applications. Typical materials include candy, cereals, cheese, coated tablets, cocoa nibs, dietary supplements, dried and fresh fruit, feed pellets, fish, frozen products, ham, lettuce, meat, nuts, oil seeds, pharmaceutical products, plant materials, sausages, soap, spices, vegetables etc.
cabbage
wine gum
cocoa filter cake
fisk
To find the best solution for your sample preparation task, visit our application database.
Our instruments are recognized as the benchmark tools for a wide range of application fields in science and research. This is reflected by the extensive citations in scientific publications. Feel free to download and share the articles provided below.
| funksjon | knusing, homogenisering og blanding |
| bruksområde | biologi, landbruk, matvarer, medisin / legemidler |
| matemateriale | mykt, middels hardt, elastisk, inneholder vann / fett / olje, tørr, fibrøs |
| nedmalingsprinsipp | kutting |
| matestørrelse* | ~ 130 mm |
| sluttfinhet* | < 300 µm |
| prøvevolum* | med standarddeksel 4500 ml med gravitasjonsdeksel 4000 ml |
| volum prøvebeholder | 5000 ml, kan reduseres med gravitasjonsdeksel |
| innstilling av turtall | digital, 500 - 4000 min-1 |
| tørr nedmaling | ja |
| våtmaling | ja |
| material i maleverktøyet | malebeholder: autoklaverbar plast PC, rustfritt stål 1.4435 blad: rustfritt stål 1.4034 holder for blad: PVDF tetninger: EPDM, FKM |
| innstilling av maletid | digital, 5 s - 3 min |
| intervalldrift | ja |
| intervalltid | justerbar |
| SOPer som kan lagres | 10 |
| drift | 3- faset asynkron motor med frekvensomformer |
| drivkraft | continuously 1.1 kW, short term 3 kW |
| Elektriske tilkoblingsdata | ulike spenninger |
| Nettilkobling | 1-fase |
| kapslingstype | IP 20 |
| b x h x d lukket | 440 mm x 340 mm x 440 mm |
| nettovekt | ~ 30 kg |
| Normer / standarer | CE |
The laboratory knife mill GM 300 features four sharp, robust blades, which rotate in the center of the grinding container. Depending on the rotational direction, size reduction is effected with the blunt side (preliminary size reduction) or the sharp side (fine grinding). The knifes are protected with a counterblade from damages by hard sample materials.
The knife is indirectly driven by a powerful motor of 1.1 kW which can reach temporary peaks of 3 kW. A pre-selectable speed which is maintained electronically ensures reproducible results.
Med forbehold om feil og tekniske endringer
Powered by Bioz
