It is a unit consisting of two machines with independent drives – a comb separator and a crusher. This universal machine is designed for various technological operations depending on the type of grape being processed and the type of final product – wine. The following technological operations can be carried out with the help of a roller comb separator-crusher:

– separation of ridges and crushing of grapes;

– Separation of ridges without crushing grapes;

– crushing of grapes without separation of the ridges.

When carrying out the technological operation of crushing grapes without separating the combs, a separate unit – a roller crusher is installed above the hopper of the decanter or press.

The design of the comb separator consists of a perforated cylinder made of stainless steel and a shaft. During its operation, the grapes entering the comb separator are separated from the berries by the blows of the hammer shaft and are carried out of the perforated cylinder, and the berries fall through the perforation of the drum onto the rotating rolls of the crusher.

The structure of the crusher consists of 4 pairs of rollers made of food grade rubber. The crusher is equipped with devices for adjusting the gap between the rollers in the range from 3 to 8 mm, which allows you to carry out the process of crushing grapes in a gentle mode, depending on the variety of grapes, its physical parameters, and to obtain high-quality wort with a minimum weight.

When using the VGD-20 machine, losses of wort with ridges are reduced, enrichment of wort with substances that give a grassy flavor is excluded. Tasting evaluation of wine materials obtained by fermentation of wort during processing of grapes with separation of ridges before crushing is 0.5 points higher than in the case of separation of ridges after crushing of berries.