GEOLOGY AND MINERALOGY
Ideal for comminution with 2 working stations
The Planetary Mill PULVERISETTE 5 classic line, with two working stations delivers fast and reliable, due to the particularly high-energy effect of the grinding balls, loss-free grinding results of hard, medium-hard, soft, brittle, tough and moist materials down to colloidal fineness. Depending on the desired final fineness, can the grinding be performed dry, in suspension or in inert gas. Besides for comminution, the Planetary Ball Mill can be utilized for mixing and homogenizing of emulsions and pastes or for mechanical activation and alloying in material research.
|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||80, 250, 500 ml|
|Grinding ball diameter||0.1 – 40 mm|
|Max. feed size (depends on material)||10 mm|
|Min. sample quantity||10 ml|
|Max. sample quantity||450 ml|
|Final fineness (depends on material)||< 1 µm|
|Typical grinding time down to analytical fineness||4 min|
|Grinding in inert gas||yes|
|Gas pressure and temperature measurement||yes|
|Rotational speed of main disk||50 – 400 rpm|
|Transmission ratio planetary disk / grinding bowl||i relative = 1 : -2.19|
|Effective diameter of main disk||~ 250|
|Centrifugal acceleration (g = 9.81 m/s²)||22 g|
|Electrical details||200-240 V/1~, 50-60 Hz, 1730 Watt|
|Instrument also available in the following voltage||100-120 V/1~, 50-60 Hz, 1470 Watt – order no. 05.6010.00|
|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 = 83 dB|
|Dimensions (W x D x H)||Bench top instrument 58 x 67 x 57 cm|
Comminution according to the Planetary Principle
The comminution of the material to be ground takes place primarily through the high-energy impact of grinding balls. To achieve this, the grinding bowl, containing the material to be ground and grinding balls, rotates around its own axis on a main disk whilst rotating rapidly in the opposite direction. At a certain speed, the centrifugal force causes the ground sample material and grinding balls to separate from the inner wall of the grinding bowl. The grinding balls then cross the bowl at high speed and further grind the sample material by impact against the opposite bowl wall. In addition, impact between the balls themselves on the sample material adds to the size reduction process. Due to the rotational speed of the main disk – up to 400 rpm – achieves the PULVERISETTE 5 classic line a centrifugal acceleration of up to 22 g.
Reproducible grinding results and absolutely safe grinding bowl clamping
The constant transmission ratio, the regulated rotational speed and precision quartz timing, ensure exactly reproducible grinding results. The Safe-Lock System, which is delivered with a torque wrench, enables simple and safe clamping of the grinding bowls – absolutely risk-free.
GTM – Gas Pressure and Temperature Measuring System
The Planetary Mill PULVERISETTE 5 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 Planetary Mill PULVERISETTE 5 classic line exactly to your specific application
The Planetary Mill PULVERISETTE 5 classic line with 2 working stations, operates with 2 respectively 4 grinding bowls of sizes 80, 250 or 500 ml, which turn with a transmission ratio of 1 : -2,19 relative to the main disk. 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.