After passing through a Maguin drum washer, the different substances present with the beets are free and clean.It is then absolutely necessary to separate the beets efficiently before the beet hopper. The Maguin stone catcher is designed to optimize the extraction of stones and gravels while removing the least possible beets. Maguin has patented a design of a multi-pocket drum stone catcher with an efficiency higher than 99,99 % and low maintenance (wear resistant materials, squirrel cage drive)

The operating principle is based on the auto-creation of an upward water flow beneath the beet stream at the level of the stone pocket. The upward stream is strong enough to support the beets while allowing the stones, gravels and sand to drop into the stone pocket. The power demand is only that needed to rotate the drum.

Various products are offered:

• stone catchers type TE-CXX with 3, 4 or 5 pockets for low quantity of stones
• stone catchers type TE-CAX with 10, 12, 14 or 16 pockets for high flow of stones or difficult conditions (low densities, stones essentially in the form of gravels).
• stone catchers type TE-CAL with expanded pockets for big stones (pockets 600 x 600 mm)

The same type of apparatus is used for desanding washing waters. The sand catcher even removes fine particles (sludge).

The stone catchers can be installed in an overhead flume in the washing line and in a flume in the beet yard before the beet pumps.