CryoMill
The CryoMill has been specially designed for cryogenic grinding. The grinding jar is continually cooled with liquid nitrogen from the integrated cooling system before and during the grinding process.
Thus the sample is embrittled and volatile components are preserved. The liquid nitrogen circulates through the system and is continually replenished from an autofill system in the exact amount which is required to keep the temperature at –196 °C. The automatic cooling system guarantees that the grinding process is not started before the sample is thoroughly cooled. This results in reduced consumption and guarantees reproducible grinding results.
Application Examples
animal feed, bones, chemical products, hair, oil seeds, paper, plant materials, plastics, sewage sludge, soils, tablets, textiles, tissue, waste samples, wood, wool, ...
Product Advantages
- Fast, efficient cryogenic grinding at –196 °C
- No bothersome manual cooling thanks to integrated cooling system with Autofill
- High final fineness due to grinding by impact and friction
- Highly reproducible grinding results
- Programmable cooling and grinding cycles
- Digital parameter setting
- Simple operation, easy cleaning
- Feed size: up to 8 mm
- Final fineness: down to approx. 5 μm
- With 1 grinding station for jars up to 50 ml
Features
| Applications | size reduction, mixing, homogenization, cell disruption |
| Field of application | agriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment, food, glass / ceramics, medicine / pharmaceuticals, mineralogy / metallurgy |
| Feed material | hard, medium-hard, soft, brittle, elastic, fibrous |
| Size reduction principle | impact, friction |
| Material feed size* | ≤ 8 mm |
| Final fineness* | ~ 5 µm |
| Batch size / feed quantity* | max. 20 ml |
| No. of grinding stations | 1 |
| Setting of vibrational frequency | digital, 3 - 25 Hz (180 - 1500 min-1) |
| Typical mean grinding time | 10 min / 1 min (cooling / grinding) |
| Dry grinding | yes |
| Wet grinding | yes |
| Cryogenic grinding | yes |
| Cell disruption with reaction vials | yes |
| Self-centering clamping device | yes |
| Type of grinding jars | screw top design |
| Material of grinding tools | hardened steel, stainless steel |
| Grinding jar sizes | 5 ml / 25 ml / 35 ml / 50 ml |
| Setting of grinding time | digital, 10 s - 99 min |
| Parameter combinations that can be stored | 1 |
| Drive | DC-Motor |
| Protection code | IP 30 |
| Power consumption | 160 W |
| W x H x D closed | 385 x 370 x 570 mm |
| Net weight | ~ 46 kg |
| Workplace related emission value | LpAeq 65 dB(A) |
| *depending on feed material and instrument configuration/settings |
Function Principle
The grinding jar of the CryoMill performs radial oscillations in a horizontal position. The inertia of the grinding balls causes them to impact with high energy on the sample material at the rounded ends of the grinding jar and pulverize it. The grinding jar is continually cooled with liquid nitrogen from the integrated cooling system before and during the grinding process.
Subject to technical modifications and errors
