M130033 | |
Agriculture and forestry, Foodstuffs | |
< 8 mm | |
< 0,5 mm | |
500 g | |
We recommend using a Universal Cutting Mill PULVERISETTE 19 for grinding this kind of sample. To speed up grinding, sample exhauster system with cyclone separator can be used additionally. |
Universal Cutting Mill PULVERISETTE 19 Speed 300-3000 rpm |
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Equipment: |
Rotor with V-cutting edges and fixed knives made of hardmetal tungsten carbide (WC) + sieve cassette 0,5 mm trapezoidal perforation |
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80 g | |
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< 8 mm | |
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1:30 min | |
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< 0,5 mm | |
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For a daily grinding of higher amounts, we recommend using knives made of hardmetal tungsten carbide (WC) for a longer durability.
After 30s of grinding, an output of 50g has been found in the collecting vessel. After 60s, output rose to 72g. After finally 90s of grinding, a total amount of 77g has been found in collecting vessel.
Only a small amount of residue uses to remain loose inside of the grinding chamber. A grinding of higher amounts will be possible.
A small amount of fine ground sample use to be electrostatic attached below the sieve cassette.
It is also possible using the active sample exhauster system with cyclone separator to speed up grinding (see result 2).
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Pictures: | Opened grinding chamber; rotor has been removed and placed on the lid. Only a small amount of sample use to remain inside of the grinding chamber. |
Universal Cutting Mill PULVERISETTE 19 Speed 300-3000 rpm |
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Equipment: |
Rotor with V-cutting edges and fixed knives made of hardmetal tungsten carbide (WC) + sieve cassette 0,5 mm trapezoidal perforation + sample exhauster system with cyclone separator |
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140 g (rest of sample) | |
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< 8 mm | |
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1:10 min | |
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< 0,5 mm | |
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For a daily grinding of higher amounts, we recommend using knives made of hardmetal tungsten carbide (WC) for a longer durability.
With the active sample exhauster system with cyclone separator, sample will be removed from the grinding chamber after it is able to pass the sieve cassettes openings. Also with the high airflow (~ 2800L air per minute), the sample will be chilled during grinding. This will be helpful when temperature sensitive samples should be ground.
Complete amount of sample has been ground within 70s. Afterwards, about 138g of sample has been found inside the collecting glass of the cyclone. The grinding chamber uses to be almost free of residues. Small amount of electrostatic charged sample use to remain inside of the cone shaped separating segment of the cyclone. A grinding of higher amounts is possible.
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Pictures: | Sample after grinding with 0,5mm sieve cassette. Fine ground sample forms soft agglomerates. |