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Process Equipment ► Density Separation


The development of the dry densimetric separation table had its origin in the mineral industry for the enrichment of minerals. Now, Allgaier’s densimetric separation technology has been transferred to other industries and activities such as recycling plants for waste, chemicals, wood and foodstuffs.

Dry densimetric separation is achieved on an inclined treatment base with vibratory motion. A flow of rising air crosses this base and has two effects on the material to be treated. Less dense products float without touching the table and slide toward the lower end of the machine as a result of the incline. More dense products contact the table and are pushed towards the top end due to the vibration. The greater the difference in density of the products, the greater the grain size bands that can be treated.

We offer four models ranging in width (0.7, 1, 1.5 and 2.4 m). Our tables can be supplied with or without a dedusting system (by cyclone or by sleeve filter). An extractor hood and ducts can be installed to fully or partially recirculate the air.

Allgaier’s densimetric tables are offer efficient separation of products with different specific densities. They are also highly effective with moist products such as compost and are up to 99.5% efficiency in MSW (Municipal Solid Waste) applications. The robust design includes wear protection for severe operating conditions.