Today the modern wineries are supplied of machines called mechanical Drainer- Presses; the crushed grapes come in and leaks out the remaining part of “flower must“, from still humid and rich of must marcs. The marc that exits from the drainer can then pass to the continuous presses and to the hydraulic presses.

The operation of draining with Guarnotta’s machines allows to obtain in continuous way beyond 60 – 70% of flower must.

It’s important that the drainer machines alimentation happens with crushed grapes in presence of rasps, so that they can give the maximum performance; these, in fact, help the separation of must from the solid part with a drainage action.

Pressing can be carried out on not fermented marcs, fermented marcs and on the grapes.

Pressing is the operation that aimed to remove from the marcs the majority of must and of wine that they contain; if case of fermented marcs, the operation must be carried out immediately after the devatting, as we are dealing with a substance that is subject to acidification.

Technical features:

  • Construction in metallic carpentry with materials of adequate thickness and robustness;
  • Diameter of the coil: 800/1000 mm. to variable step, in stainless steel 304;
  • The cage is realized in stainless steel laminated with oblique holes; the motion is assured by an opportune gearmotor-group, type EPC to satellite gears to direct transmission;
  • The cowling can be entirely and easily detachable in order to carry out the cleaning; entirely realized in stainless steel AISI 304 with laminates modeled and press-bended with skillful care;
  • The operation of the machine is assured by a gearmotor-group at HP. 7,5;
  • Drain pressure is adjustable as required, thanks to precise parameters set up from the constructor;
  • The buffer closing is assured by a pneumatic piston with an opportune regulator filter and a distributor of command (it requires an air point of 8 bars);
  • An exclusive system that we adopted, placed inside of the pressure room, replaces the obsolete Maltese cross and a room of pressure guarantees a soft pressing for the obtaining of a product of high quality;
  • The propeller is entirely built in stainless steel and is formed by two sections completely independent, where it finds guide structure in the Ant reflux Static Device; this guarantees the total absence of friction betweenthe propeller and the pierced one that excludes the consumption of the coil and the damaging of the pierced one.

 An important result is a remarkable saving of expensive maintenances in the future years, and an high-quality production.