Pulverizing of greasy, sticky and moist materials with PALLMANN’s Contra-Selector Mill, type PPS”  |  | | | Features: |  | Cool, gentle grinding | | Single-step refining to end fineness possible | | Safe operation, no clogging | | High flexibility when changing product | | Suitable for dry-grinding | | Scrapers keep the interior housing wall clean |
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|  | | | | | | | | | | Application: | | Method of operation: | | | | | | | | | With conventional mills it is often difficult or impossible to pulverize greasy, sticky or moist materials such as press cakes, fish meal, detergents, fertilizers, cellulose ether or spices under ambient temperatures. PALLMANN’s Contra-Selector Mill, type PPS is the solution to these problems. | | Metered feeding of the product into the Contra-Selector Mill. The material is reduced in size by impact and shearing effect between the impeller and the screen ring rotating in the same or opposite directions. The interior of the housing is kept clean by rotating scrapers. The mill allows fine tuning of the particle size distribution curve by selecting the screen type, the relative speed of the rotating impeller to the screen ring as well as by the choosing the type of refining elements. | | | | | | | | | | The Contra-Selector Mill can be supplied in wide-housing design, in jacketed design for internal heating and cooling, explosion pressure proof design up to 10 bar, stainless steel/air-tight design as well as in special plated design (i.e. nickle-plated). | |
| | | | Technical data | "PPSContra-Selector Mill, type PPS" | | Type | 6-180 | 8-240 | 10-300 | | Drive capacity impeller | 30-55kW | 55-110kW | 110-160kW | | Drive capacity screen ring | 15-30kW | 30-55kW | 90-132kW | | Performance factor | 1 | 1.7 | 2.7 |
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