45 Particle Characterisation


Air Sizer 200 for the Most Effi cient Particle Sizing in the Micron Range


The Air Sizer 200 from Endecotts has been designed for sieving very fine dry particles, which require efficient dispersion and deagglomeration via air jet technology (e.g. difficult to sieve particles like electrostatic material). It is also the perfect instrument to quickly provide a sieve cut of powdered materials.


Most sieving operations on the Air Sizer take only a matter of minutes. Useful functions including the ability to regulate the level of vacuum, and constant or timed operation help to achieve optimum performance. The Air Sizer 200 is easy to use, extremely efficient and provides accurate and reproducible results.


Features:


• Advanced air jet technology for fine particles, usable for dry material 20 µm upwards


• Digital controls for easy and reliable operation • Extremely efficient & fast sieving times • Sieving action keeps apertures clear • Air flow fluidizes and helps to separate sample • Adjustable nozzle speed, 5 - 55 rpm


• Pre filter unit & vacuum cleaner available as accessories


• Ideal for fine electrostatic powders • Maintenance-free • Voltage-independent • Suitable for 8” premium air-jet sieves


The Air Sizer 200 is recommended for use with either the 8” (203mm) or 200mm sieves which are available in an extensive range of aperture sizes to ASTM E11 and ISO 3310-1 standard.


Endecotts supplies adaptors and lids with the Air Sizer 200 for both sizes of sieves. More information online: ilmt.co/PL/E240


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3D Sieve Shaker OCTAGON 200CL For precise, reproducible and error-free sieving processes


Endecotts’ Octagon 200CL competes with the most advanced sieve shakers in the world. Several unique features have been developed specifically for this machine, including the ‘Closed Loop’ amplitude control for ultimate reproducibility.


The sieve shaker is powered by an electromagnetic drive which has no rotating parts, making it maintenance-free and extremely quiet in operation. The vibratory, three-dimensional motion produced by the power unit moves the sample over the sieve in a unique way resulting in faster, more efficient sieving, while the rapid vertical movements help to keep the apertures from blinding.


The Octagon 200CL is designed to work with Endecotts’ SieveWare, the software for easy evaluation and documentation of the sieving process.


Features:


• ‘Closed Loop’ total amplitude control ensures reproducible sieving


• Digital controls for easy and reliable operation • Easy-to-use sieve clamping system • Accepts up to 8 full height 200 mm (8”) diameter sieves • Suitable for dry and wet sieving • 3D sieving motion allows for high separation efficiency and non blinding sieving action


• Full compatibility with the SieveWare evaluation and control software via USB Port (printed or digital protocols)


• Voltage-independent More information online: ilmt.co/PL/5lkg


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Endecotts and the Advantages of Sieving


Perhaps the biggest advantage of test sieving is that it is a quick and reliable method of particle analysis, equally suited to accurate scientific research work or routine analysis under industrial conditions. Tests can be performed at almost any location.


No complicated apparatus is demanded. A nest of sieves and a simple laboratory balance will suffice in most cases. In fact, rapid size checks can often be made on-site at a particular plant with the aid of a rough pair of scales.


The technique of test sieving is simple. No specialised knowledge or skill is needed; care and diligence are the main requirements. Process operators can easily be trained to carry out sieve tests.


When the size distribution of a sample has been determined by test sieving, the material becomes separated into several fractions. This is another important attribute. These fractions are not contaminated, nor have their chemical or physical properties been altered. They are, therefore, available for further inspection or independent analysis if required.


The above testing procedure of sieving by hand can be tedious and the accuracy of the method may also depend on the operator who performs the test. With machine sieving most of the burden is removed from the operator, and once the optimum conditions have been determined, reproducible results are rapidly obtained.


For example, the nest of sieves may be shaken for a certain predetermined time e.g. 5 mins and amplitude e.g. 1.5 mm. This ensures that results from different labs can be compared with a large degree of accuracy.


Whether you are looking for test sieves or sieve shakers, Endecotts offer the world’s finest equipment. More information online: ilmt.co/PL/WypB


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