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Variable Speed Rotor Mill PULVERISETTE 14 classic line

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Variable Speed Rotor Mill PULVERISETTE 14 classic line

code : PULVERISETTE 14

Effective comminution due to highest rotor speed

The FRITSCH Variable Speed Rotor Mill PULVERISETTE 14 classic line is the ideal mill for fast, effective comminution of soft to medium-hard, brittle and fibrous materials as well as temperature-sensitive samples – proven worldwide for the use in trace analysis.

Difficult-to-mill samples, or extremely temperature-sensitive samples such as styrenes, polyester, synthetic resins, films, PVC, PP and PE can be embrittled with the addition of liquid nitrogen and afterwards ground in the PULVERISETTE 14 classic line. The motor speed can be varied between 6,000 and 20,000 U/m rpm in increments of one-thousandth - making it possible to adapt the mill to each specific application. An automatic speed compensation feature ensures an ideal adaptation of the grinding to the specific comminution behaviour of the sample. At the same time reduces the fast, effective grinding significantly the thermal strain on the sample.

  • Rapid sample throughput due to high-speed grinding
  • Max. feed size 10 mm, max. throughput 5 l/h
  • Final fineness d50 < 40 μm, sieve rings 0.08 – 6 mm
  • Ideal for minimal sample quantities < 10 ml
  • Simple, tool-free changing of rotor, collecting vessel, sieve ring and labyrinth seal
  • Simple, contamination-free cleaning and assembly of all grinding parts outside the instrument
  • Heavy-metal and iron-free grinding and sample preparation according to RoHS
  • Comminution of difficult-to-mill and temperature-sensitive samples – also cryogenic
  • Variable speed settings between 6,000 and 20,000 rpm
  • Automatic speed regulation for constant milling
  • Efficient cooling of the grinding chamber due to extremely high airflow
  • Highly durable low-wear rotor made of stainless steel
  • Grinding chamber made of stainless steel or PTFE-coated with practical quick-clamping lock
  • Grinding parts made of stainless steel, pure titanium and TiN-coated
  • Maintenance-free three-phase motor with regulated rotor speed 6,000 - 20,000 rpm
  • High speed stability even under full load
  • Wear-free labyrinth seal between the grinding chamber and drive motor
  • Removable dust filter for convenient cleaning
  • Ergonomic operating panel with membrane keyboard and timer
  • Microcontroller with integrated regulation function for Vibratory Feeder
  • Optimal for fine comminution after pre-crushing with the FRITSCH Cutting Mills
  • Temperature gentle fine grinding with the FRITSCH Cyclone separator
  • Extensive accessories available – easing your laboratory tasks

TECHNICAL DATA

Working principle impact force
Optimal for material type soft, medium-hard, brittle, fibrous and temperature-sensitive samples
Grinding tools impact rotor, sieve rings, pin insert, impact bar
Materials of the grinding tools stainless steel, pure titanium and TiN-coated
Max. feed size (depending on the material) 10 mm
Min. sample quantity < 10 ml
Max. throughput (depending on the material and sieve size) 5 l/h
Final fineness (sieve inserts) 0.08 - 6 mm
Feeding batchwise/continuous
Rotor speed 6,000 - 20,000 rpm
Electrical details 200-240 V/1~, 50-60 Hz, 1100 Watt
Instrument also available in the following voltage 100-120 V/1~, 50-60 Hz, 1100 Watt - order no. 14.5010.00
Emission sound pressure level at the workplace according to DIN EN ISO 3746 (depending on the material to be ground and instrument configuration) approx. LpAd = 89 dB
Weight 23 kg
Dimensions (W x D x H) bench top instrument 31 x 48 x 47 cm

Accessories Variable Speed Rotor Mill PULVERISETTE 14 classic line

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