CRUSHING & MALAXING

Crushing and malaxing An olive oil’s potential, in terms of flavour and organoleptic characteristics, is developed during the crushing and malaxing phases. The olive drupe crushing and paste heating processes must be performed with extreme care using machinery that, on the one hand, prevents oxidation or deterioration and, on the other, enhances the most important properties of the olives.

Pieralisi: innovation and know-how dedicated to quality since 1888 Passion, tradition and innovation. These have been the core values of the Pieralisi Group since 1888, when its first workshop opened in the small town of Monsano. Today, the Pieralisi Group is the world leader in providing state of the art separation solutions using centrifugal force. Pieralisi systems deliver optimal performance - both for continuous cycle and batch processing - enhancing, on one hand, the quality of the oil, which is even richer in polyphenols and, on the other, making it possible to harness the full potential...

Safety and assurance for excellent results Safety and assurance play an increasingly important role in a world where mechanical engineering is becoming increasingly complex. This is why Pieralisi, UNI EN ISO 9001 and UNI EN ISO 14001 certified, takes great care in the design and manufacture of its machinery in accordance with quality assurance and safety standards to ensure compliance with key directives such as the Machinery Directive 2006/42/EC, the Low Voltage Directive 2014/35/ UE, the Electromagnetic Compatibility Directive 2014/30/UE and the ATEX Directive 2014/34/UE. The control panels,...

LEAF REMOVAL AND WASHING Crushing The crushing and malaxing processes are the starting point of the most delicate phases in the olive oil production process. The quality of the oil, how the flavours develop, and the oil extraction yield depend on the type of crushing and the subsequent malaxing phase. The olives must be properly crushed in order to: • facilitate the extraction of oil and important minor compounds; • break the kernels into appropriately sized fragments to ensure more effective malaxing and more efficient centrifugal extraction; • minimise oxidation of the paste (reduced peroxide)....

The advantages of Pieralisi crushing systems Crushing • Capable of varying the sensory attributes of the oil by enhancing some organoleptic and aromatic characteristics. The various crushers are equipped with inverters used to change the rpm of the main motor and consequently the hammer/blades impeller. • Maximum yield with minimum energy consumption. • Seamless processing ensured by the quality design and construction which keeps the temperature down and is suitable for different types of olives. • Using Pieralisi technology, the crusher is equipped with a control system that ensures maximum...

LEAF REMOVAL AND WASHING Malaxing The next step in the process is called malaxation. This phase completes the development process of flavours and the organoleptic properties of olive oil started in the crushing phase. Malaxing involves slowly stirring the paste while it is thermal conditioning which causes the microscopic oil and water drops to coalesce, forming increasingly larger drops. The shape, volume and size of the paddles and the number of revolutions are key factors in obtaining the maximum yield and quality. Pieralisi malaxing systems are composed of independent malaxer unit, suitable...

The advantages of Pieralisi malaxing Malaxing • Maximum energy efficiency and reduced malaxing times thanks to the optimum diameter. • No wastage since the paste is fed into the tank by means of a three-way valve. • The modular design of the malaxer makes it possible to add even just one unit based on the miller’s requirements. • Control of process parameters via an electronic control panel with a computerised touch screen. • Processing can be done in each tank at different temperatures. • Special automatic washing systems to ensure that each batch is not contaminated by the previous batch. •...

SINGLE GRID CRUSHERSINGLE GRID CRUSHER installed power kW The Pieralisi crusher, rotating The grid Pieralisi (2800 rpm) crusher, and rotating counter-rotating grid (2800 grid, rpm) is the andfather counter-rotating grid, is the fathe of all crushers, and even today of the all crushers, only crusher andable eventotoday guarantee the only thecrusher best yield ableand to guarantee the best yield an quality of oil. The grids with flared quality holes of oil. areThe easily grids interchangeable with flared holes andare areeasily available interchangeable in and are available different hole diameters...

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SIMPLEX SERIES SIMPLEX SERIES installed power kW capacity installed LpowerL kW mm The SIMPLEX malaxing systemThe is the SIMPLEX perfectmalaxing solution for system batchis processing. the perfect solution It combines for batch processing. It combin technological innovation withtechnological ease of use and innovation guarantees with the easehigh of use Pieralisi and guarantees quality the high Pieralisi quali standards in terms of materialsstandards and performance in terms at of amaterials competitive and price. performance at a competitive price. • The fully independent malaxing • The units...

MOLINOVA TG SERIES MOLINOVA TG SERIES installed power kW installed capacity power L kWL mm The Molinova TG malaxing Theunit, Molinova suitable TGfor malaxing both batch unit,and suitable continuous for both processing, batch and continuous consists of completely independent consists of malaxer completely units independent that guarantee malaxer considerable units thatenergy guarantee consider saving, given the fact that saving, it is possible given the to fact run that only ittheis tanks possible needed, to runand onlykeep the tanks the needed, a other ones off. other ones off. • The malaxers...