תיאור
Variable Transmission Ratio
The PULVERISETTE 4 classic line also operates according to the Planetary Principle, but the transmission ratio between grinding bowls and supporting disk is variable adjustable. Your advantage: You can directly influence the movement and paths of the grinding balls: Depending on the setting, you can obtain high impact energy or high friction, according to your needs, or have your PULVERISETTE 4 classic line operate as a Centrifugal Mill. You are free to choose all intermediate levels and combinations between friction-based and impact-based comminution.
Due to the rotational speed of the main disk – up to 400 rpm – achieves the PULVERISETTE 4 classic line a centrifugal acceleration of up to 22 g.
- Flexible configurable grinding conditions: impact and/or friction
- Rotational speed up to 400 rpm
- Ideal for mechanical alloying and activating
- Especially suited for material research and development applications
- Simultaneous processing of up to 4 samples
- Useful capacity of 2 x 0.5 ml to 2 x 225 ml
- Free programming of the grinding parameters, incl. grinding and pause times and grinding cycles through PC software
- Real-time display of the rotational speed for monitoring of the grinding process
- WINDOWS™ control and evaluation programme
- Reversing function
- Forced air ventilation of the grinding chamber
- Safety interlock of the grinding chamber with standstill monitoring
- Overload protection through rotational speed adjustment
- Maintenance-free drive
- Long service life due to high-performance belt drives and permanently lubricated bearings
- Membrane keyboard
- Extensive accessories for simplifying your daily work
GTM – Gas Pressure and Temperature Measuring System
The Vario-Planetary Mill PULVERISETTE 4 classic line can be combined with the GTM-System for measuring of the gas pressure and temperature during grinding. This turns your mill into an analytical measuring system.
Configure your Vario-Planetary Mill PULVERISETTE 4 classic line exactly to your specific application
The Vario-Planetary Mill PULVERISETTE 4 classic line with 2 working stations operates with 2 respectively 4 grinding bowls of sizes 12, 45, 80, 250 or 500 ml. The transmission ratio between grinding bowl and planetary disk is variably adjustable. To achieve best grinding results, grinding bowls and grinding balls are available in various sizes and 6 different materials. Contamination of the samples due to undesired abrasion can be directly prevented. For grinding in inert gas, for mechanical activation and alloying are gassing lids recommended.
| Working principle | impact force |
| Optimal for material type | hard, medium-hard, soft, brittle, tough, 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 |
| Grinding bowl sizes | 12, 45, 80, 250, 500 ml |
| Grinding ball diameter | 0.1 – 40 mm |
| Max. feed size (depends on material) | 10 mm |
| Min. sample quantity | 0.5 ml |
| Max. sample quantity | 450 ml |
| Final fineness (depends on material) | < 1 µm |
| Typical grinding time down to analytical fineness | 4 min |
| Grinding process | dry/wet |
| Grinding in inert gas | yes |
| Gas pressure and temperature measurement | yes |
| Rotational speed of main disk | 0 – 400 rpm |
| Transmission ratio planetary disk / grinding bowl | variable |
| Effective diameter of main disk | ~ 250 mm |
| Centrifugal acceleration (g = 9.81 m/s²) | 22 g |
| Interfaces | yes |
| Electrical details | 380-480 V/3~, 50-60 Hz, 6000 Watt |
| Instrument also available in the following voltage | 200-240 V/3~, 50-60 Hz, 6000 Watt – order no. 04.1020.00 |
| 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 = 81 dB |
| Weight | 320 kg |
| Dimensions (W x D x H) | Floor instrument 60 x 80 x 110 cm |
