Fermentation Vessels & Stainless Steel Pressure Vessels

Drainers

A&G Engineering produces SWAP white drainers, which pre-drain white must as a semi-continuous operation prior to pressing. This process has proved to reduce pressing time substantially. Quality draining screens are used internally and drainers are fitted with the SWAP-style "sweeping arm" mechanical unloading system including an air-operated discharge door.

Jetting tanks

Jetting tanks are a cost-effective alternative to rotary fermenters and SWAPs. These specialised fermentation vessels have a number of features to ensure even the low budget project has access to high quality fermetation vessels for best results.

Features:

  • 30 to 300 tonne capacity
  • Additional access doors to permit jetting out of the must
  • Agitation available to assist in yeast and temperature management
  • Dimple plates for temperature and ferment control
  • 5° sloping floor to assist in removal of skins when jetting out

Must tanks

A&G Engineering's must tanks feature a screw in the base to allow the discharge of the must, usually to a pump or conveyor for delivery to your press.

Features:

  • Capacities up to 200 tonnes
  • In-built screw conveyors to aid in the discharge of skins

Open fermenters

Open fermenters can be supplied as round or rectangular vessels with a capacity of up to 20 tonnes. These manually-plunged tanks are mounted on galvanised stands with platforms on each side to allow easy access while allowing the vessels to be elevated above the necessary equipment.

Features:

  • Up to 20 tonnes in capacity
  • Dimple plate/cooling jacket to manage temperature with low (140kPa), medium (300kPa) or high (550kPa) pressure options
  • Large square, side swing or vertical lift doors to discharge must
  • Full range of fittings to suit your requirements
  • Plunging systems are also available
  • Smaller fermenters can be designed to enable movement by forklift

Pump-over and flood-over systems

A&G Engineering's irrigators and pump-over systems are all PLC-controlled to manage pumping time and frequency, a feature that ensures the best results for the end product. These systems are manufactured to maximise colour extraction without compromising efficiency.

Features:

  • Systems from 50mm to 100mm
  • High volume flood-over systems for faster cap wetting
  • Allows the winemaker to manage the temperature of the cap and maximise colour extraction
  • A&G Engineering's irrigators are designed to provide an even distribution of juice across the tank diameter

Rotary fermenter

A&G Engineering's rotary fermenters have produced many award-winning wines at some of the finest wineries in Australia. The design allows for precise temperature control and the automatic discharge of grape skins using a helical discharge, greatly improving efficiency in wine-making operations. Ferments of four days are possible, allowing rapid turnover of batches with low labour input.

Features:

  • 7.5 to 100 tonne capacity
  • Rapid fermentation by quick ferment initiation and even temperature distribution through the juice and cap
  • PLC controlled to manage fermentation parameters
  • Mounted on hot-dipped galvanised steel structures to allow direct discharge into presses and bins
  • Air sparging systems available to oxygenate the ferment

Static fermenters

A&G Engineering's static fermenters are mounted on galvanised stands for elevation and feature larger sloping floors to assist in marc discharge. These lower-cost alternatives to SWAP or rotary fermenters can be fitted with heading down boards and the customer's choice of dimple plate.

Features:

  • Up to 50 tonnes in capacity
  • Large square, side swing or vertical lift doors to discharge marc
  • Full range of access manholes and fittings to suit your requirements
  • Dimple plate to manage temperature in low (140kPa), medium (300kPa) or high (550kPa) pressure
  • Large top access holes for irrigators and venting of fermentation gases

SWAP (sweeping arm) fermenter

Introduced by A&G Engineering in 1999, the Sweeping Arm Potter, or SWAP, is an adaptation of the earlier Potter fermenter that transformed the wine industry in the 1970s. The SWAP allows the direct discharge of wet marc into a press via a sweeper arm and air-actuated marc door. It also features an automatic pump-over system ensuring complete irrigation of the cap area.

Features:

  • 20 to 300 tonne capacity
  • Dimple plate to manage temperature in low (140kPa), medium (300kPa) or high (550kPa) pressure
  • Can be emptied by a single person
  • Full range of access manholes and fittings to suit your requirements, including self-locking door option
  • Volume driven or mechanically driven irrigating systems available
  • PLC Control systems to manage pump-overs
  • Mounted on hot-dipped galvanised steel structures to allow direct discharge into presses and bins