Cutting Mill Combination Pulverisette 19 LARGE/Pulverisette 19
With the extra powerful, patented FRITSCH Cutting Mill Combination of…
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Universal Cutting Mill – variable speed 300-3000 rpm Pulverisette 19 LARGE/Pulverisette 19
Due to the variable rotational speed adjustment in increments of hundred between 300 and 3000 rpm you can fine tune the comminution process for each sample within a very wide range of applications. The high-speed Universal Cutting Mill PULVERISETTE 19 with a torque of up to 30 Nm comminutes dry, soft to medium-hard sample materials and fibrous materials and plastics with reliable reproducible results with a maximum feed size of 70 x 80 mm and a throughput of up to 60 l/h.
One special advantage: Straw, films and similar materials can be fed in up to their full length without additional preparation. And the PULVERISETTE 19 is also ideal for RoHS tests. Due to Clean Design of the PULVERISETTE 19, it is easy to clean and offers a safe protection against cross-contamination.
The sample material is comminuted according to the cutting principle of scissors between the cutting edges of the rotor and the fixed knives in the grinding chamber until the desired final fineness is achieved. Unique grinding chamber geometry: The grinding chamber is designed with minimal dead space and progressive cutting geometry between rotor and fixed knives. The sample material is continuously moved during comminution and cannot settle anywhere. In conjunctions with the special air flow, this is the basis for swift, blockage-free operation and fast cleaning without residue.
The Universal Cutting Mill PULVERISETTE 19 is equipped with a flywheel mass to stabilize the drive torque. This ensures stable operation even for extreme short-term load, as well as an optimal comminution result.
Universal Cutting Mill – variable speed 300-3000 rpm Pulverisette 19 LARGE/Pulverisette 19
Features
- Fast, effective comminution with variable adjustable rotational speed of 300 – 3000 rpm
- Max. feed size 70 x 80 mm
- Throughput of up to 60 l/h
- Defined final fineness due to interchangeable sieve cassettes 0.2 – 10 mm, (further sieve sizes available)
- Collection vessel 0.25 litres to 60 litres
- Optimised Clean Design for maximum ease of cleaning
- Practical operation directly on the front panel
- Maintenance–free 5 kW three-phase motor with frequency converter
- Single-phase versions with maintenance-free three phase frequency converter
- Externally adjustable cutting gap
- Double cone bearing of the rotor for long service life
- Standard funnel for long solids or protected funnel with sample pusher
- Different rotors for multi-functional use
- Wear-free labyrinth seals made of stainless steel on both sides of the rotor – on the shaft and in the lid
- Rotor knives and fixed knives are exchangeable for long-lasting quality
- Optimum airflow for fast comminution and anti-clogging
- Sample exhaustion with FRITSCH cyclones
specifications
| LARGE | ||
| Working principle | cutting | cutting |
| Optimal for material type | medium-hard, soft, brittle, tough, fibrous | medium-hard, soft, brittle, tough, fibrous |
| Cutting tools | rotor with V-cutting edges and fixed knives, rotor with notched edges, rotor with straight cutting edges and fixed knives, disk milling cutter rotor with indexable inserts and fixed knives | rotor with V-cutting edges and fixed knives, rotor with notched edges, rotor with straight cutting edges and fixed knives, disk milling cutter rotor with indexable inserts and fixed knives |
| Materials of the cutting tools | hardened stainless steel, hardmetal tungsten carbide, chromium-free tool steel, stainless steel 316L, chromium-free steel DC01 | hardened stainless steel, hardmetal tungsten carbide, chromium-free tool steel, stainless steel 316L, chromium-free steel DC01 |
| Max. feed size (depends on material and funnel) | 70 x 80 mm | 120 x 85 mm |
| Max. throughput (depending on the material and sieve size) | 60 l/h | 85 l/h |
| Final fineness (depends on sieve cassette – additional sieve sizes available) | 0.2 – 10 mm | 0.5 – 10 mm |
| Feeding | batchwise/continuous | batchwise/continuous |
| Variable rotor speed (depending on voltage and frequency) | 300 – 3000 rpm | 300 – 3000 rpm |
| Rotor peripheral speed | 1.57 – 15.7 m/s | 1.57 – 15.7 m/s |
| Drive | Up to 5 kW three-phase motor with frequency converter and flywheel mass for stabilising the drive torque | Up to 5 kW three-phase motor with frequency converter and flywheel mass for stabilising the drive torque |
| Electrical Details | 380-460 V/3~, 50-60 Hz, 5000 watt, 30 Nm
200-240 V/1~, 50-60 Hz, 2350 watt, 10 Nm 100-120 V/1~, 50-60 Hz, 1725 watt, 8 Nm |
380-460 V/3~, 50-60 Hz, 5000 watt, 30 Nm
380-460 V/3~, 50-60 Hz, 5000 watt, 30 Nm 200-240 V/1~, 50-60 Hz, 2350 watt, 10 Nm |
| Emission sound pressure level at the workplace according to DIN EN ISO 3746 (depending on the material to be ground, rotor and sieve insert used) | LpAd = 78 dB | LpAd = 71 dB |
| Weight | 79 kg | 88 kg |
| Dimensions (W x D x H) | table mounted or on support frame 44 x 79 x 56 cm | table mounted or on support frame 45 x 65 x 63 cm |
The PULVERISETTE 19 with voltage of “/3~”can only be operated on a three-phase supply network.
Despite the frequency converter, the three-phase version “/3~” is definitely preferable instead of a single-phase version “/1~”, because the three-phase version achieves a higher torque mass and pulling power.
The single-phase versions of the Universal Cutting Mills PULVERISETTE 19 also have an especially maintenance-free three-phase motor with a frequency converter.
Manufacturers
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Document
Cutting Mill variable speed 300-3000 rpm Pulverisette 19
Industries
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Methods
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Spares and accessories for variable speed 300-3000 rpm PULVERISETTE 19
CUTTING TOOL SETS
The PULVERISETTE 19 can either be equipped with a Rotor with V-cutting edges and fixed knives or rotor with straight cutting edges and fixed knives, or rotor with notched edges and fixed knives or disk milling cutter rotor with indexable inserts and fixed knives.
By selecting the material of the cutting tool sets and sieve cassettes, the abrasion properties can also be individually accommodated. Details about cutting rotors and materials are found in the element analysis.
Cutting tool sets are also available in further materials.
SIEVE CASSETTES MADE OF STAINLESS STEEL 316L
Sieve cassettes determine the fineness of a sample. Sieve cassettes with trapezoidal and square perforations are offered. Sieve cassettes with trapezoidal perforations improve size reduction through extra shearing action. Sieve cassettes with square perforations are used for the grinding of brittle materials and materials of medium fineness with a narrow grain band.
Sieve cassettes are also available in further perforations.
ACCESSORIES FOR CHROMIUM-FREE COMMINUTION
When chromium-free size reduction is required for sample preparation according to RoHS – for example for verification of hexavalent chromium – or for XRF analysis, FRITSCH cutting tool sets of chromium-free tool steel and sieve cassettes made of chromium-free steel DC01 offer absolute assurance.
SAMPLE EXHAUSTION WITH CYCLONE SEPARATORS
The patented combination of the Universal-Cutting Mill with the high-performance Cyclone separator and the small volume Cyclone separator enables a simple cleaning and feeding, the use of finer sieve cassettes for achieving a higher final fineness, increases the throughput and reduces the thermal load of the samples – even for materials, which are otherwise difficult to grind.
For Selecting Cyclone separator, exhaust system and accessories check this link.
Universal Cutting Mill – variable speed 50-700 rpm Pulverisette 19 LARGE/Pulverisette 19
Due to the variable rotational speed adjustment in increments of…
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