The Analysette 18 by Fritsch is a vibratory, dry sieving machine designed for processing large quantities of materials.

The Analysette 18 is used for particle size analysis and grading of coarse-grained materials. The maximum feed quantity of 25 kg for sieving material and sieve stack means that it is also suited for use in pilot plant production and test series of large quantities.

Savings and test reliability can be achieved by replacing mechanical sieving with the Analysette 18. A maximum sample quantity of 6 kg can be processed in the measuring range 63 µm to 125 mm. Sieve process times are between 5 and 60 minutes.

The evaluation programme Autosieve, delivers reliable sieving results faster. Since the entire evaluation is performed via computer, mistakes made during weighing and calculating of individual sieve functions become obsolete.

Benefits include:

- Rapid sieving: 5- 60 minutes
- Large sieving quantities: up to 6 kg
- Maximum sieve diameter: 450 mm
- Low noise output
- Continuous operation
- 2 year guarantee

For further information please contact customer service on 1800 251 799 or email info@johnmorris.com.au

Fritsch's premium line are the first Planetary Ball Mills with sunken grinding bowls. This enables rotational speeds of up to 1,100 rpm, revolutionary acceleration of 95 times the force of gravity, resulting in ultrafine grinding results in shorter time frames.

Fritsch’s premium line is stylish, practical and compact – making it the ideal match for demanding laboratories. Features include: intuitive touchscreen interface; integrated Ethernet, Bluetooch and USB interfaces; and, a unique SelfLOCK system enabling fast bowl changes.

For further information please contact customer service on 1800 251 799 or email info@johnmorris.com.au

Fritsch's Pulverisette 25 Power Cutting Mill is suitable for course crushing of soft to medium-hard dry materials such as plastics, wood, coal, non-metallic waste, grains, animal feeds, dried meat, bones, tobacco and confectionery. It has a maximum feed size of 120 x 85mm and a throughput of up to 85 litres per hour.

The grinding chamber of the Cutting Mill houses a rotor with three fixed knife blades set at different angles. These blades crush and grind the material to the desired particle size before it is carried by a permanent air flow through a sieve cassette into a collecting vessel. Sieve cassettes range in cutting size from 1mm - 10mm. The rotor and the sieve cassette can be easily removed for cleaning between samples. Cutting tools are available in tool steel and tungsten carbide.

The P25 Cutting Mill contains the following safety features:

- The cutting mill door contains a built in safety lock to prevent access to moving parts during operation

- If the collection vessel is removed during operation the machine will immediately stop.

For further information on the Pulverisette 25 please call customer service on 1800 251 799 or email info@johnmorris.com.au

Fritsch have released a new laser particle sizer, the Analysette 12 DynaSizer which uses a dynamic light scattering technique to enable the measurement of particle size distributions between 1 and 6000nm. It also has an extremely wide concentration range of 0.0003 % to 40 wt %.

When measuring particles only small sample volumes of < 50 µl are necessary - these particles are applied directly to the optical measuring cell inside the instrument; therefore making disposables such as cuvettes obsolete.

When measuring the thickness of a sample the strength of the measurement layer can be variably adjusted. This enables the measurement of extremely thin layers and prevents unwanted multi-scattering effects. It also facilitates the measurement of highly concentrated suspensions as well as in opaque media.

The power of the laser can be adjusted to enable the measurement of very dark samples or high particle concentrations of up to 40 wt %.

For further information on the Analysette 12 please call customer service on 1800 251 799 or email info@johnmorris.com.au

 FRITSCH’s new compact ANALYSETTE 22 MicroTec plus Laser Particle Sizer is the economical solution for quality and process control, as well as, research and development applications. With a variable measuring range of 0.08 – 2000µm, the MicroTec plus is typically used to determine the particle size distribution of samples in powder form, solids in suspensions and emulsions.

Despite being small in size, the MicroTec plus offers precision measurement, even with large particles. It achieves this through its use of two lasers (green and infrared) and its detectors which captures 108 measuring channels. The green laser carries out the measurement of small particles, while the infrared laser carries out the measurement of large particles. Both lasers can be aligned quickly, automatically and independently of each other.

The advantage of having two lasers is precise measurement across a range of particle sizes. When switching between small and large particles, the detector and laser source simply move as a unit while the measuring cell remains fixed in place. This is why the unit is able to remain compact in size compared to other laser particle sizers within the same wave length. It also makes calibration easier.

Key advantages include:

- Measuring range 0.08 – 2000 µm.
- Revolutionary dual-laser technology offers precise measurement of a range of particle sizes.
- Fast, automatic particle size analysis – complete measurements in less than a minute.
- Practical measuring system that can be quickly and easily connected to various dispersion units for dry or wet measurements.
- This allows you to buy only what you need for your applications.
- Small footprint.
- Fast and simple cleaning.
- Fully automatic analysis. View results on the screen or in a printed report format.

For further information on the ANALYSETTE 22 MicroTec plus call customer service on 1800 251 799 or email info@johnmorris.com.au

Fritsch's new laser particle sizer, the Analusette 22 NanoTec plus features a practical modular design that can be quickly and easily connected to various dispersion units for dry or wet samples. Boasting a wide measuring range of 0.01 – 2000 μm, the NanoTec plus is capable of measuring a range of particle sizes, including nano-particles. Typical applications include production, quality control, research and development. The NanoTec plus offers an extremely simple operation, short analysis times and reliable results.

The NanoTec plus measures with high resolution and sensitivity. Fritsch's innovative triple-laser technology for forward and backward scattering overcomes optical conversion by allowing three measurement positions of the measurement cell and five different measuring ranges. Irrespective of the measurement position you select, the NanoTec plus uses all 57 measuring positions of the detector. By combining the various measurement positions, it is possible to perform measurements with up to 165 effective points. This ensures reliable results every time.

Advantages include:

-      Measurement of nano-particles with an extremely wide measuring range of 0.01 – 2000 μm.

-      Triple laser technology for sensitive measurements and reliable results.

-      Fast, automatic particle size analysis – complete measurements in less than a minute.

-      Practical measuring system that can be quickly and easily connected to various dispersion units for dry or wet measurements.

       This allows you to buy only what you need for your applications.

-      Fast and simple cleaning.

-      Fully automatic analysis. View results on the screen or in a printed report format.

For further information on the Analysette 22 Nano Tech plus please call customer service on 1800 251 799 or email info@johnmorris.com.au

John Morris Scientific are pleased to introduce Fritsch’s complete range of application-oriented laboratory instruments for fast industrial applications as well as accurate research technology applications in research laboratories.

Fritsch’s Pulverisette Mills are ideal for wet and dry milling of hard-tough, fibrous, elastic and soft materials. The Pulverisette can mill samples of several milligrams to several kilograms in various degrees of fineness up to under one μm. They are dependable, simple to operate and easy to clean. Corresponding grinding parts made of various materials are available and are the best guard against unwanted contamination of samples.

Fritsch Laser Particle Sizers offer state-of-the-art laser technology for a unique price performance ratio, for each particular area of application and utilization. Fritsch offers a special, patented measuring method by laser diffraction inside the convergent laser beam. Your advantage: a simple continuous adjustment of the measuring area as well as up to now unknown number of measuring channels.

Fritsch Sieve Shakers offer a high degree of comfort and precision with automatic amplitude control, program selection, control and evaluation software, as well as premium sieve stack tensioning. State of-the-art electronics makes it so dependable as it can be integrated in a quality management system. Fritsch sieve shakers are available for sieves of up 450 mm diameter, for dry or wet sieving and micro-precision sieving.

Fritsch Sampler Divides create the optimum base for a dependable analysis of a representative sample. The unique combination of three processes ensures an up to date unknown accuracy of division. Variable division ratios and tools permit the adjustment to the most diverse tasks with a degree of dividing accuracy of up to 99.9 %.

For further information on the Fritsch Product range contact Ronald Cheong

Very hard material with a feed size < 100mm can now be reduced in size to an ultimate fineness of 0.1mm in a single operation.

In the past when laboratories prepared large pieces of brittle samples for analysis, they used a jaw crusher such as Fritsch’s Pulverisette 1 for the pre-crushing stage, since the original feed size was too large to be handled by the final grinding mill. Previously samples could not be prepared for analysis in a single operation because a jaw crusher could not achieve adequate product fineness and grinding mills can only handle a limited range of feed size.

Fritsch now offer the Pulverisette 13 - Disk Mill which quickly reduces material to a fineness of  0.1 mm (minimum) even when processing relatively large samples (up to 20 mm edge length). In cases where the required fineness fits this criteria but the original samples include pieces with an edge length over 20 mm, Fritsch GmbH offer the perfect solution:

Combination of the Pulverisette 1 and Pulverisette 13 used together
The Pulverisette 1 - Jaw Crusher is mounted on a metal frame over the Pulverisette 13 - Disk Mill and the two units are connected by a specially designed hopper. This combination enables sample reduction from the jaw crusher's maximum feed size (approximately 100mm) to the disk mill's finest average grain size of approximately 0.1mm in one single operation.

Fritsch’s Pulverisette 2 is the essential instrument for processing laboratories. It is suitable for fine grinding inorganic and organic samples for analysis, quality control and material testing.

The Pulverisette 2 is ideal for applications such as:

• grinding dry samples and solid materials in suspension
• manufacturing and homogenising pastes and creams to laboratory standards

Whenever reproducible grinding conditions, short grinding times, precise results, loss-free milling and dust-free operation are required, the Pulverisette 2 is the perfect mill. A final fineness of 10µm - 20µm can be achieved from a material feed size of 6mm - 8mm and feed quantity of 30ml - 150ml (depending on material).

Method of operation: The principle involved is similar to a hand mortar, the material to be ground is reduced in size between the pestle and the mortar bowl through pressure and friction.

The mortar is rotated by a drive motor and in turn to drives the mounted, free-rotating pestle by means of friction. Pressure is applied by the pestle on the mortar wall in the horizontal as well as vertical direction. The pressure resulting from the preloaded springs can be adjusted without tools. It can be read off precisely and is therefore absolutely reproducible. A standard integrated scraper turns the sample and guides it back to the pestle.

Specific pestle settings are provided for pre-crushing the samples, during which the pestle works without any direct contact with the base of the mortar. All parameters for this operating mode can also be set so that a reproducible grinding process is guaranteed.

The mortar bowl has a dust-tight seal, which ensures there is no loss of material during grinding. It is also possible to add liquids (eg, nitrogen) directly whilst the process takes place.

John Morris Scientific are pleased to offer Fritsch’s Mini-Mill for the smallest quantities, the Pulverisette 23.

The Mini Mill is ideal for fine comminution of very small quantities (0.2 - 5ml) such as dry laboratory samples or solid suspensions for mixing and homogenisation of emulsions. The Mini Mill accepts a maximum input size of 6mm (depending on the material).

The Mini Mill is ideal for sample preparation of chemical analysis, chromatography, mass spectrometry or X-ray structural analysis. The Pulverisette 23 can also be used for homogenising of active ingredients and milling of pigments or other precious materials.

The large sized DC motor in the Mill converts the rotation to a vertical oscillation using a robust crankshaft drive. This controlled oscillation of the grinding bowl generates a particle size reduction through the impact of a grinding ball as it crushes the sample. The Mini Mill can reach a final particle size of 10µm.