Planetary Ball Mill PM400

Planetary Ball Mill PM400

10mm - 1 micron, or for colloidal grinding 0.1 micron

CodeAG485
Approx. Weight (kg)290
Tariff90248000
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Planetary Ball Mills are used wherever the highest degree of fineness is required. Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes. The extremely high centrifugal forces of the Planetary Ball Mills result in very high pulverisation energy and therefore short grinding times.

This is a robust floor model with 4 grinding stations

Supplied as 230 V, 50/60 Hz, with 4 grinding stations, speed ratio 1 : -2

Grinding Jars and Balls must be ordered seperately

Application Examples

alloys, bentonite, bones, carbon fibres, catalysts, cellulose, cement clinker, ceramics, charcoal, chemical
products, clay minerals, coal, coke, compost, concrete, electronic scrap, fibres, glass, gypsum, hair,
hydroxyapatite, iron ore, kaolin, limestone, metal oxides, minerals, ores, paints and lacquers, paper, pigments,
plant materials, polymers, quartz, seeds, semi-precious stones, sewage sludge, slag, soils, tissue, tobacco, waste
samples, wood.

Advantages

  • powerful and quick grinding down to nano range
  • grinding with up to 26.8 x acceleration of gravity
  • reproducible results due to energy and speed control
  • suitable for long-term trials
  • 2 different grinding modes (dry and wet)
  • optional pressure and temperature measuring system PM GrindControl
  • wide range of materials for contamination free grinding
  • Safety Slider for safe operation
  • comfortable parameter setting via display and ergonomic 1-button operation
  • automatic grinding chamber ventilation
  • 10 SOPs can be stored
  • programmable starting time
  • power failure backup ensures storage of remaining grinding time
  • jars with O-type sealing for safe operation, pressure tight

Specification and Features

Applications pulverizing, mixing, homogenizing, colloidal milling, mechanical alloying
Field of application Chemistry, agriculture, biology, construction materials, engineering / electronics, environment / recycling, geology /metallurgy, glass / ceramics, medicine / pharmaceuticals


Feed material soft, hard, brittle, fibrous - dry or wet
Size reduction principle impact, friction
Material feed size *< 10 mm
Final fineness *< 1 µm, for colloidal grinding < 0.1 µm
Batch size / feed quantity *max. 4 x 220 ml, max. 8 x 20 ml with stacked grinding jars
No. of grinding stations 4/2
Speed ratio 1:-2 / 1:-2.5 / 1:-3
Sun wheel speed 30 - 400 min-1
Effective sun wheel diameter 300 mm
Type of grinding jars "comfort", optional areation covers, safety closure devices
Material of grinding tools hardened steel, stainless steel, tungsten carbide, agate, sintered aluminium oxide, zirconium oxide
Grinding jar sizes 12 ml / 25 ml / 50 ml / 80 ml / 125 ml / 250 ml / 500 ml
Setting of grinding time 00:00:01 to 99:59:59
Interval operation yes, with direction reversal
Interval time 00:00:01 to 99:59:59
Pause time 00:00:01 to 99:59:59
Storable SOPs 10
Measurement of input energy possible yes
Interface RS 232 / RS 485
Drive 3-phase asynchronous motor with frequency converter
Drive power 1.5kW
Electrical supply data 220-230V 50/60Hz
Power consumption ~ 2100W (VA)
Power connection 1-phase
Protection code IP 30
W x H x D closed 836 x 1220 (1900) x 780 mm
Net weight 290 kg
Standards CE


*depending on feed material and instrument configuration/settings

Principle of Operation

The grinding jars are arranged eccentrically on the sun wheel of the planetary ball mill. The direction of movement of the sun wheel is opposite to that of the grinding jars in the ratio 1:-2 (or 1:-2.5 or 1:-3). The grinding balls in the grinding jars are subjected to superimposed rotational movements, the so called Coriolis forces. The difference in speeds between the balls and grinding jars produces an interaction between frictional and impact forces, which releases high dynamic energies. The interplay between these forces produces the high and very effective degree of size reduction of the planetary ball mill.