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 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.

Features:

• 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