Ideal for smallest quantities
The PULVERISETTE 7 classic line with 2 working stations is ideally suited for fast, uniform, and extremely fine comminution of very small samples down to colloidal fineness of hard, medium-hard, brittle and moist samples. Depending on the desired final fineness can the grinding be performed dry or in suspension.
Besides for comminution, the Planetary Ball Mill can be utilized for mixing and homogenizing of emulsions and pastes.
| Working principle | impact force |
| Optimal for material type | hard, medium-hard, brittle, moist |
| Number of working stations | 2 |
| Grinding tools | grinding bowls and grinding balls |
| Materials of the grinding tools | agate, sintered corundum, silicon nitride, zirconium oxide, hardened stainless steel, hardmetal tungsten carbide, polypropylene |
| Grinding bowl sizes | 12, 45 ml |
| Grinding ball diameter | 0.1 - 15 mm |
| Max. feed size (depends on material) | 5 mm |
| Sample quantity | 0.5-40 ml |
| Final fineness (depends on material) | < 1 µm |
| Typical grinding time down to analytical fineness | 3 min |
| Grinding process | dry/wet |
| Grinding in inert gas | only possible in glove box |
| Gas pressure and temperature measurement | no |
| Rotational speed of main disk | 100 - 800 rpm |
| Transmission ratio planetary disk / grinding bowl | i relative = 1 : -2 |
| Effective diameter of main disk | 140 mm |
| Centrifugal acceleration (g = 9.81 m/s²) | 50 g |
| Interfaces | yes |
| Electrical details | 100-120/200-240 V/1~, 50-60 Hz, 740 Watt voltage, indicated by customer is set |
| Emission sound pressure level at the workplace according to DIN EN ISO 3746 (depending on the material to be ground, grinding bowls/balls, selected rotational speed) | up to approx. LpAd = 82 dB |
| Weight | 35 kg |
| Dimensions (W x D x H) | bench top instrument 37 x 53 x 50 cm |
