Cryogenic Grinding Systems PPST

PALLMANN Plast-Agglomerator PFV Cryogenic Grinding Systems PPST Area of Application Cryogenic grinding systems incorporating the TM CryoMill , type PPST produce high quality powders from head sensitive plastics and elastomers. o Pulverizing occurs at low temperatures (-70 C to o 150 C) and high impact speeds (250m/s). Particle sizes produced are in the range of d97 = 500 µm up to d97 = 80 µm. The cubical particle size of the powders produced guarantee optimum flowability and a high bulk density. Additives can be added during the cryogenic grinding process. Typical products are PA6, PA6.6, PET,...

Method of Operation Material is metered into a cooling screw and embrittled by means of liquid nitrogen (LN2). Size reduction is performed by numerous impacts with pins, which are mounted on fast rotating discs. Embrittlement temperature as well as the impact speed influences the produced particle size. Size reduced material is pneumatically conveyed and divided into the desired particle sizes by means of suitable screening technology. Oversized particles can be directly reintroduced into the cooling screw for regrinding. Decisive advantages Excellent powder characteristics Cubic particles with...

The PALLMANN Group of Companies The PALLMANN Group of companies is a leading manufacturer for size reduction machines and systems for the process industries. PALLMANN Maschinenfabrik develops and manufactures machines and complete systems according to customer requirements or as standard solutions for the preparation of almost any material as well as recycling products. In its headquarters in Zweibrücken, PALLMANN operates one of the world’s largest research and technology centers as well as a training- and service center. More than 130 different test machines are available for the preparation...