Material Testing Laboratory Equipment

Planetary Ball Mill (LAG480)

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

CodeLAG480
Weight (kg)86
Tariff902480 90
  • 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 convenient benchtop model with 1 grinding station.
  • It operates in centrifugal mode, which leads to a gentler size reduction process with less abrasion.
  • Supplied as 230 V, 50/60 Hz, with 1 grinding station, speed ratio 1: -1, centrifugal mode for gentle size reduction
*Grinding Jars and Balls must be ordered separately

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.

Advantages

  • powerful and quick grinding down to Nano range
  • 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 Grind Control
  • measurement of energy input
  • wide range of materials for contamination free grinding
  • Safety Slider for safe operation
  • perfect stability on lab bench thanks to Free Force Compensation Sockets
  • innovative counter weight and imbalance sensor for unsupervised operation
  • gentle grinding in centrifugal mode
  • 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

Specification and Features

Applicationspulverizing, mixing, homogenizing, colloidal milling
Field of applicationagriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals
Feed materialsoft, hard, brittle, fibrous – dry or wet
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: -1
Sun wheel speed100 – 650 min-1
Effective sun wheel diameter141 mm
Type of grinding jars“comfort”, optional aeration 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 time00:00:01 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
Drive3-phase asynchronous motor with frequency converter
Drive power750W
Electrical supply data220-230V 50/60Hz
Power consumption~ 1250W (VA)
Power connection1-phase
Protection codeIP 30
W x H x D closed630 x 468 x 415 mm
Net weight86 kg
DocumentationOperation & Application Video
StandardsCE

*depending on feed material and instrument configuration/settings

Principle of Operation

  • 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: -1.
  • 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 AG480 this counterweight can be adjusted on an inclined guide rail.
  • In this way the different heights of the centres 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 FFCS technology 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 LAG480 ensures a quiet and safe operation with maximum compensation of vibrations even with the largest pulverisation forces inside the grinding jars and therefore can be left on the bench unsupervised.

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.

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