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For the finest rapid, batch-wise comminution of hard to soft grinding materials, dry or in suspension, down to colloidal fineness. For mixing and perfect homogenising of emulsions and pastes.
Maximum sample quantity: 450 ml
Areas of application
Geology, chemistry, mineralogy, ceramics industry, construction materials industry, metallurgy, electrical industry, glass industry, nuclear research, soil research
Method of operation
The grinding sample is typically comminuted by high-energy impacts from grinding balls and partially by friction between balls and the grinding bowl wall.
Features overview
- Lossless grinding - including suspensions thanks to the ring seal in the grinding bowl
- Reproducible grinding result thanks to precise quartz time control
- Grinding materials of analysis purity made of 8 different materials for contamination-free grinding
- Simultaneous grinding in up to 4 small or 2 large grinding bowls
- Reversing operation
- Programmable grinding and pause times as well as grinding cycles; the grinding time can be set to the exact number of seconds for short runs
- RS232 interface for transfer of process parameters
- Special gassing lids for grinding under inert gas and for mechanical alloying
- Simple cleaning
- Certified safety (CE mark)
- 2-year warranty
Equipment
The standard equipment delivered with the Planetary Mill PULVERISETTE 5 classic line includes 2 bowl fasteners and „safe lock“ clamping; however, it includes no grinding bowls or balls, which are available in 8 different materials and must be ordered as accessories. The voltage specified in the order is preset.
Voltage/connection values: | 100-120/200-240 V/1~ |
Frequency: | 50-60 Hz |
Input Power: | 1500/1300 W |
External control: | Yes/RS232 |
Operating principle: | Impact |
Grinding tools: | Grinding bowls (80, 250, 500 ml) and grinding balls (0.5 - 40 mm) |
Materials of the grinding tools: | Agate, sintered corundum, silicon nitride, zirconium oxide, stainless steel, hardened steel, hardmetal tungsten carbide |
Main disc speed: | 50-400 rpm |
Gear ratio: | i relative = 1 : -2.19 |
Max. feed size: (depends on material) | 10 mm |
Min. sample quantity: | 10 ml |
Max. sample quantity: | 450 ml |
Final fineness: | < 1 µm |
Dimensions: (W x D x H) | Table unit 58 x 67 x 57 cm |
Weight: | 100 kg |
Suitable for the following material samples
hard, medium-hard, soft, brittle, tough, moist
Accessories
Please note: For this FRITSCH mill, you require at least four grinding bowls of your choice and the corresponding number of grinding balls. The grinding bowl material must also be harder than the material to be ground. In normal cases, grinding bowls and balls of the same material are used. To shorten the grinding time, larger or heavier balls with a higher density can be used, e.g. tungsten carbide balls in a steel bowl or zirconium oxide balls in a silicon nitride bowl. Please take note of the useful capacity, this is not identical with the bowl volume!
Grinding bowl 500 ml volume classic line
Grinding bowl 250 ml volume classic line
Grinding bowl 80 ml volume classic line
Grinding balls 40 mm diameter for grinding bowl 500 ml
Grinding balls 30 mm diameter for grinding bowl 500 ml, 250 ml
Grinding balls 20 mm diameter for grinding bowl 500 ml, 250 ml, 80 ml
Grinding balls 15 mm diameter for grinding bowl 500 ml, 250 ml, 80 ml, 45 ml
Grinding balls 10 mm diameter for grinding bowl 500 ml, 250 ml, 80 ml, 45 ml, 20 ml, 12 ml
Grinding balls 5 mm diameter for grinding bowl 500 ml, 250 ml, 80 ml, 45 ml, 20 ml, 12 ml
Grinding balls ≤ 3 mm diameter for grinding bowl 500 ml, 250 ml, 80 ml, 45 ml, 20 ml, 12 ml (100 g package)
Accessories for grinding under inert gas and for mechanical alloying - Gassing lids with 2 valves and seal for grinding bowl 500 ml volume classic line
Accessories for grinding under inert gas and for mechanical alloying - Gassing lids with 2 valves and seal for grinding bowl 250 ml volume classic line
Accessories for grinding under inert gas and for mechanical alloying - Gassing lids with 2 valves and seal for grinding bowl 80 ml volume classic line
GTM - Gas pressure and temperature measurement system
Accessoires for Safe-Lock clamping system
Certification
Grinding set selection aid for the PULVERISETTE 5 classic line with 2 grinding bowl fasteners
Material data for the grinding bowls/balls
Material | Main component of the material | Density g/cm³ | Abrasion resistance | Used for grinding material |
Agate | SiO2 | 2.65 | good | soft to medium-hard samples |
Sintered corundum | Al2O3 (99.7%) | 3.8 | moderately good | medium-hard, fibrous samples |
Sintered corundum-2 | Al2O3 (97%) | 3.9 | moderately good | hard, medium-hard, soft, brittle, tough and moist samples |
Silicon nitride | Si3N4 | 3.25 | extremely good | abrasive samples, iron-free grinding |
Zirconium oxide | ZrO2 | 5.9 | very good | fibrous, abrasive sampless |
Stainless steel | Fe – Cr – Ni | 7.8 | moderately good | medium-hard, brittle samples |
Tempered steel | Fe – Cr | 7.9 | good | hard, brittle samples |
Hardmetal tungsten carbide | WC | 14.95 | very good | hard, abrasive samples |
I. Grinding balls ≥ 5mm: Recommended number of balls per grinding bowl
Grinding bowl/ Useful capacity (grinding material) |
80 ml 10 - 30 ml |
250 ml 30 - 125 ml |
500 ml 80 - 225 ml |
Balls diameter | |||
40 mm | 4 | ||
30 mm | 6 | 8 | |
20 mm | 5 | 15 | 25 |
15 mm | 10 | 45 | 70 |
10 mm | 25 | 50 | 100 |
5 mm | 250 | 1200 | 2000 |
II. Grinding balls ≤ 3 mm: Recommended ball mass per grinding bowl in grams
Grinding bowl/ Useful capacity (grinding material) |
80 ml 10 – 30 ml |
250 ml 30 – 125 ml |
500 ml 180 – 225 ml |
Zirconium oxide | 100 g | 400 g | 800 g |
Stainless steel / tempered steel | 150 g | 500 g | 1100 g |
Hard metal tungsten carbide | 300 g | 1000 g | 2100 g |
Grinding balls with diameter 3 mm and smaller must be weighed out. The above table provides you with the necessary weight to be included per grinding bowl.
The quantity of grinding balls can be reduced by up to 15%; however, increased wear should be expected in this case. The specified number/mass of balls per bowl is the minimum quantity; depending on the material behaviour, it may be necessary to increase this.
In normal cases, grinding bowls and balls of the same material are used. To shorten the grinding time, larger or heavier balls with a higher density can be used, e.g. tungsten carbide balls in a steel bowl or zirconium oxide balls in a silicon nitride bowl.