The Fundabac®

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Solids Separation Index


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The Fundabac

The Fundabac®


Invented and developed by Dr. Hans Müller, as an alternative to existing equipment for coping with more sophisticated filtration processes, the FUNDABAC® filter has captivated users because of its great simplicity in functionality. Its advantages and its performance are now widely recognized as a basic tool in the chemical processing industry.

The FUNDABAC® Filter Type R for Dry and Slurry discharge

The unique filter elements are the heart of the FUNDABAC® and CONTIBAC® filter systems. The clover leaf cross-section of the element permits safe filtration while guaranteeing adherence of the filter cake to the cloth. That same characteristic is the basis for the effectiveness of the cake discharge. The clover leaf cross-section of the filtration elements favors adherence of the cake during filtration. The concave parts of the filter element cause it to adhere during compression and guarantee that it remains in place throughout the entire cycle.

Once the filtrate has passed through the filter cloth, it flows into the peripheral tubes, through the slots and then down to the bottom of the candle, before rising again in the central tube toward the registers. The multi-channelled candles allow a downward flow of the filtrate by gravity; it rises in the central tube hydraulically and flows into the registers.

Whether programmed for dry or slurry discharge, discharge is brought about by counter-current and pressure in the interior of the candle. The unique structure accentuates the effects of this counter-current. It results in an extreme outward billowing of the filter cloths, particularly at the zone where the cake adheres, causing vertical cracks in the cake. The quick-pulse gas blow-back (such as air or nitrogen) into the filter hose instantly releases the cracked cake, causing it to fall down. The discharge does not involve movement of any part except for the filter cloths.