Gericke has long experience in grinding and calibrating agglomerates and bulk solids, with the Nibbler GNB being used in the bulk solids industry for many years. It can deagglomerate dry, greasy or partially moisture containing products in an energy-efficient manner or to bring them to the desired target particle size.

The latest generation of Gericke GNB nibblers is focused is on expanding process applications while reducing cleaning time and extending the service life of the nibbler screen.


There are several new features of the Gericke GNB. The target particle size can be adjusted by changing the shaker. This makes it possible to process a wide variety of products on the same granulator. It is now possible to set the optimum clearance between the beater unit to the screen insert for each screen and product without opening the machine. The metal contact monitoring system protects against incorrect adjustment. At the same time, this option also helps to detect ignition sources in an ATEX environment.

The option of moving the beater unit out of the housing on guide rods is popular in various industries. This option significantly reduces the cleaning effort and allows easy inspection of the machine.

The Gericke Nibbler GNB has already been used in various industries. For example, in the food industry or in the production of building materials with frequent colour changes or for materials that tend to stick together or compact.

In order to determine the optimum process parameters and the best machine configuration, Gericke offers the possibility of carrying out tests on a Gericke GNB. Either with a rental machine directly at the customer’s premises or in a Gericke test centre. The possible options can be assessed directly, and the optimum machine configuration can be worked out together.

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Gericke GNB Nibbler

Gericke GNB Rental Unit