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Laboratory Rotor Mill Pulverisette 14

The Variable Speed Rotor Mill Pulverisette 14 is an all-purpose mill for rapid crushing of medium-hard to soft materials, even temperature-sensitive products.

LEAFLET

The Rotor Mill Pulverisette 14 is an all-purpose mill for rapid crushing of medium-hard to soft substances.

Grinding temperature-sensitive materials is also possible with the variable speed rotor mill. The extremely high rotor speed enables fast and effective grinding, drastically reducing thermal stress on the grinding material.

Samples that are difficult to grind can be ground to analytical fineness by embrittlement (e.g. addition of liquid nitrogen before grinding). Under some circumstances, the high efficiency of the mill can make it possible to grind such samples even without previous embrittlement.

With a feed size of < 10 mm, a final fineness down to 40 μm can be achieved. The throughput depends on the material and lies between 0.05 and 5 L per hour.

Application: drugs, tablets, fertilizers, pellets, fodder, plants, wood, roots, leaves, coniferous needles, spices, textiles, leather, chemicals, foodstuffs, grains, cellulose, fillers, chalk, kaolin, coal, soils (without stones), styrene, polyester, synthetic resins, plastics, foils, PVC, PP and PE.

Sample exhauster with cyclone separator

This type of collection is the most convenient because the ground material is transferred directly to a glass bottle, from which it can be easily removed, transported or stored. The strong air current cools and transports the ground material and prevents clogging.

Maximum feed size: 10 mm (3/8’’)
Final fineness: d50< 40 μm to 6 mm, depending on sieve insert
Maximum capacity: 5 L/h
Grinding materials: Stainless steel, pure titanium (iron-free), TiN-coated steel
Dimensions (WxDxH): bench top instrument 31x48x47 cm (12x19x19’’)
Weight: 23 kg (50 lb.)
  • Certified safety (CE mark) – optional CSA approval for Canada
  • 2-year warranty

A high-speed rotor (6,000 to 20,000 rpm) with shaped ribs crushes the sample by impact force. In addition, the sharp-edged teeth and the sieve insert reduce the sample by shearing. The sample is placed under stress in the last milling stage by friction between the rotor and the sieve insert. Ground material is collected in a stainless collection pan.

  • Rapid sample throughput due to high-speed grinding, easy cleaning
  • Variable speed settings between 6,000 and 20,000 rpm
  • Final fineness defined by choice of different sieves