Polymers & Plastic

When particle size matters, the P-14 takes over. It is multifunctional, with a choice of impact rotor up to 24,000 revolutions per minute or cutting rotor up to 18,000 revolutions per minute – corresponding to impact speeds of 121.9 metres per second and 79.2 metres per second respectively – ensuring fast sample throughput. Feed sizes smaller than 15 millimetres, typical throughputs of up to 15 litres per hour and more, and final finenesses smaller than 40 micrometres with sieve rings from 0.08 to 6 millimetres are permitted. 
Samples that are difficult to grind or sensitive to temperature can be embrittled with liquid nitrogen and then safely ground. 
Process reliability is part of the design: intelligence safety control, temperature sensor and very high air flow keep the sample cool. Patented cooling of the grinding parts, targeted air flow and cooling fins on the rotors prevent melting and sticking. The grinding chamber and electronics compartment are completely separate – the electronics remain dust-free, the process air cooler and faulty switching is avoided. The cooling effect can be further increased with a cyclone; the P-14 can be operated either in batches or continuously.

The clean design offers components that can be removed without tools (funnel, collection vessel, rotor, sieve ring/bowl holder, labyrinth disc). Laser-welded sieve rings reduce dead space and increase stability. A wear-free labyrinth seal separates the grinding chamber and the drive. The machine operates pleasantly quietly in accordance with European standards, can be remotely controlled, has an interface for data exchange and integrated control of the LABORETTE 24 vibration feed chute.

For sensitive applications, contact materials such as stainless steel 303 or 316L or polytetrafluoroethylene coating as well as grinding parts made of stainless steel 431 or 316L, pure titanium, tungsten carbide or zirconium oxide are available. In short: high cutting and impact energy meets powerful cooling and clean discharge. This allows you to achieve the target grain size quickly and reproducibly – without lubricating films and with low agglomeration. And because halving the particle size roughly doubles the specific surface area, the sample provides more signal for analysis; our instruments and application knowledge ensure process control.

The ANALYSETTE 22 NeXT Nano uses laser diffraction to measure particle size distribution from 0.01 to 3800 micrometres. Most measurements take less than a minute, and cleaning is quick and residue-free. Evaluation and reports are generated automatically and can be adapted to your standard operating procedures. The method complies with the international standard 13320 for particle size analysis using laser diffraction and delivers repeatable, reproducible results. Reactive or moisture-sensitive powders are dispersed dry: a venturi nozzle breaks up agglomerates as they pass through, parts that come into contact with the sample are quickly dismantled, and the measuring cell can be opened without tools – keeping the routine efficient.

When shape is as important as size, the ANALYSETTE 28 ImageSizer supplements size analysis with morphology in less than five minutes. Telecentric optics, high-performance software and transparent display in FRITSCH Cloud and FRITSCH Gallery provide key parameters such as roundness, aspect ratio and convexity. The method complies with the international standard 13322-2 for dynamic image analysis and makes shape deviations visible at an early stage.