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Planetary Ball Mill PM 100

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 pulverization energy and therefore short grinding times.

The PM 100 is a convenient benchtop model with 1 grinding station.

Application Examples

alloys, bones, ceramics, charcoal, chemical products, coal, coke, electronic scrap, fibres, glass, limestone, minerals, ores, paper, plant materials, quartz, seeds, sewage sludge, soils, waste samples, wood, ...

Product Advantages

  • powerful and quick grinding down to nano range
  • perfect stability on lab bench thanks to FFCS technology
  • innovative counter weight and imbalance sensor for unsupervised 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
  • reproducible results due to energy and speed control
  • suitable for long-term trials and continuous use
  • 2 different grinding modes (dry and wet)
  • optional pressure and temperature measuring system PM GrindControl
  • measurement of energy input
  • wide range of materials for contamination free grinding
  • Safety Slider for safe operation

Features

Applicationspulverizing, mixing, homogenizing, colloidal milling, mechanical alloying
Field of applicationagriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals
Feed materialbrittle, fibrous - dry or wet, hard, soft
Size reduction principleimpact, friction
Material feed size*< 10 mm
Final fineness*< 1 µm, for colloidal grinding < 0.1 µm
Batch size / feed quantity*max. 1 x 220 ml, max. 2 x 20 ml with stacked grinding jars
No. of grinding stations1
Speed ratio1 : -2
Sun wheel speed100 - 650 min-1
Effective sun wheel diameter141 mm
Type of grinding jars"comfort", optional areation covers, safety closure devices
Material of grinding toolshardened steel, stainless steel, tungsten carbide, agate, sintered aluminium oxide, zirconium oxide
Grinding jar sizes12 ml / 25 ml / 50 ml / 80 ml / 125 ml / 250 ml / 500 ml
Setting of grinding timedigital, 00:00:01 to 99:59:59
Interval operationyes, with direction reversal
Interval time00:00:01 to 99:59:59
Pause time00:00:01 to 99:59:59
Storable SOPs10
Measurement of input energy possibleyes
InterfaceRS 232 / RS 485
Driveasynchronous motor with frequency converter
Drive power750 W
Protection codeIP 30
Power consumption~ 1250 W (VA)
W x H x D closed630 x 468 x 415 mm
Net weight~ 86 kg
Workplace related emission valueLpAeq < 85 dB(A)
DocumentationOperation & Application Video
StandardsCE
*depending on feed material and instrument configuration/settings 

Function Principle

The grinding jar is 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.
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.

Planetary mills with a single grinding station require a counterweight for balancing purposes. In the Ball Mill PM 100 this counterweight can be adjusted on an inclined guide rail. In this way the different heights of the centers of gravity of differently-sized grinding jars can be compensated in order to avoid disturbing oscillations of the machine.

Any remaining vibrations are compensated by feet with some free movement (Free-Force Compensation Sockets). This innovative FFCStechnology is based on the d’Alembert principle and allows very small circular movements of the machine housing that result in an automatic mass compensation. The laboratory bench is only subjected to minimal frictional forces generated in the feet.

In this way the PM 100 ensures a quiet and safe operation with maximum compensation of vibrations even with the largest pulverization forces inside the grinding jars and therefore can be left on the bench unsupervised.

Subject to technical modifications and errors

 
 
Relate Product
Planetary Ball Mill PM 400
Planetary Ball Mill PM 400
Planetary Ball Mill PM 200
Planetary Ball Mill PM 200
Planetary Ball Mill PM 100
Planetary Ball Mill PM 100
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