Mini-Mill

PULVERISETTE 23

AT A GLANCE

  • For smallest sample amounts up to 5 ml for dry, wet and cryogenic grinding
  • Especially effective grinding due spherical grinding bowls
  • Precisely adjustable and reproducible grinding time
  • Very simple operation, cleaning and maintenance

IDEAL FOR

CHEMICAL ANALYSIS

ENVIRONMENTAL RESEARCH

PHARMACEUTICALS AND MEDICINE

FORENSIC ANALYSIS

BIOTECHNOLOGY

MATERIAL TECHNOLOGY

OVERVIEW

The smallest instrument for smallest quantities

The ultra-compact FRITSCH Mini-Mill is ideal for fine comminution of smallest quantities of medium-hard, brittle and moist samples – wet, dry or cryogenic. Its special spherical grinding bowl ensures a much better performance in grinding, mixing and homogenizing compared with similar models. With a footprint of just 20 x 30 cm and a weight of 7 kg it easily fits anywhere; it’s smart, user-friendly, inexpensive and convinces with impressive results, small, fast, effective.

 

TECHNICAL DATA
Working principleimpact force
Optimal for material typemedium-hard, brittle, moist
Grinding toolsgrinding bowls and grinding balls
Materials of the grinding toolszirconium oxide, hardened stainless steel, PTFE
Grinding bowl sizes5, 10, 15 ml
Grinding ball diameter0.1 – 15 mm
Max. feed size (depends on material)6 mm
Min. sample quantity0.1 ml
Max. sample quantity5 ml
Final fineness (depends on material)5 µm
Grinding time (depends on material)2 min
Grinding processdry / wet
Cryogenic grindingliquid nitrogen can be used for pre-cooling in the PTFE bowl
Grinding bowl oscillations per minute900 – 3,000 at 9 mm amplitude
Electrical details100-240 V/1~, 50-60 Hz, 20 Watt
Emission sound pressure level at the workplace according to DIN EN ISO 3746 (depending on the material to be ground and grinding bowl/balls used)approx. LpAd = 75 dB
Weight7 kg
Dimensions (W x D x H)bench top instrument 20 x 30 x 30 cm
WORKING PRINCIPLE

Impact and friction

The FRITSCH Mini-Mill PULVERISETTE 23 grinds the sample through impact and friction between grinding balls and the inside wall of the grinding bowl. For this, the grinding bowl performs vertically oscillating movements with 900 – 3,000 oscillations per minute at 9 mm amplitude.
In contrast to similar mills, a clearly better degree of efficiency is achieved due to the spherical-shaped inside of the grinding bowl, which is perfectly adapted to the communition principle.

FEATURES
  • Fast, reproducible comminution
  • Extremely compelling in price and in performance
  • Convenient grinding bowl mount with plug-style closures practical and quick clamping system
  • Grinding bowl oscillations: 900 – 3,000 oscillations/min at 9 mm amplitude
  • Regulated oscillation frequency (15 – 50 Hz)
  • Small grinding bowl volumes for smallest sample quantities 0.1 ml – 5 ml
  • Low contact surface area with grinding elements
  • Operating panel with integrated, easy-to-clean glass keyboard
  • Extensive accessories for simplifying your daily work

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EFFECTIVE GRINDING

Unmatched effectiveness with spherical grinding bowls

Available only from FRITSCH: In Special consideration of the ball mill grinding concept, we developed for the PULVERISETTE 23 a grinding bowl with interior walls that are spherical instead of cylindrical. Your advantage: Unmatched grinding performance with a significantly improved grinding effect, much easier recovery and simpler cleaning.
Especially practical: The spherical grinding bowls of the PULVERISETTE 23 are assembled simply and quickly, just twist and turn!

BIOTECHNOLOGICAL APPLICATION

PTFE bowl

The 5 ml PTFE bowl is especially suited for using the FRITSCH PULVERISETTE 23 in biotechnology applications. For example, it is possible to break up fungus or yeast cells, deep frozen tissue and cells in only a few minutes with this special plastic bowl and a 10 mm steel ball. It is also possible to pre-cool the entire bowl in liquid nitrogen.

EQUIPMENT / ACCESSORIES

Grinding bowl and grinding balls

The Mini-Mill PULVERISETTE 23 operates with a grinding bowl and grinding balls. To avoid undesired contamination of the sample through abrasion, we offer a selection of 3 different materials. Normally, grinding bowls and grinding balls of the same material are used. Grinding bowls and grinding balls made of zirconium oxide for absolute metal-free grinding are also offered.

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Booking Demo

Booking Demo