Closed-top mash fermenter with automatic punch down system

Tank with automatic punch down system is used for maceration of red grapes.

A pneumatic cylinder helps plunger to immerse the cap (grape skin) into the juice. This is done by a two-flap plunger in the pre-set time intervals. Immersion is slow and gentle with a low mechanic pressure, thus increasing the extraction of color, aromas and tannins from grape skins. Immersion time intervals are set on the electric control panel, manual start is also possible.

Double cooling jacket enables achieving and maintaining optimal temperature of mash during maceration. Mash tank also serves as a vessel for fermentation and storage of wine. Mash tank with plunger can be equipped with pump and sprinkler, combining the pump-over and punch down processes for the highest effectiveness.