Located in Monteriggioni, amidst the picturesque Tuscan hills of Italy, Galigani Filtri Srl has been a pioneer in the “solid-liquid” filtration industry for more than six decades. Specializing in the design and construction of filter presses, the company’s well-reputed supplier of medium to large-scale filtration plants.
The journey began in the 1950s when Galigani Filtri developed its first filter presses for the decolorization, demargarination and brightening of edible oils, serving Italy’s most renowned refineries of the time. In 1970, the company introduced filter systems with automatic dosing for filtration aids, serving specifically the food industry.
By the 1980s, in response to growing environmental concerns, Galigani Filtri expanded its expertise to address industrial and municipal wastewater challenges. The company developed specialized filter presses for the dewatering of industrial and civil sludge from treatment plants, consolidating its position as a leader in filtration innovation.
Galigani Filtri’s success is rooted in its dedication to continuous technological advancement. From the 1990s onwards, the company integrated programmable logic controllers (PLC) for automated filter management, streamlining processes and enhancing reliability.
Recognizing the significance of filtering edible oils as early as the late 1970s, Galigani Filtri played a pivotal role in transforming market perceptions of oil filtration.
After olives are crushed, the resulting oil contains impurities such as tiny fragments of olive pits, skins, and water droplets, giving the oil a cloudy appearance. If left unfiltered, these impurities can degrade the oil within a few months, causing rancidity, altering flavor, and affecting overall quality. Filtration eliminates these particles, ensuring the oil remains pure, stable, and long-lasting.
While unfiltered oil might appear more “natural,” studies have shown that filtering immediately after pressing significantly extends shelf life. Filtered extra virgin olive oil can be bottled with an 18-month expiration date, making it suitable for large-scale retail distribution and ensuring availability until the next harvest season.
Galigani Filtri offers cutting-edge filtration systems tailored to extra virgin olive oil production. Options include:
• Filter presses with filter sheets for medium to small flow rates.
• Advanced filtration models using filtration aids for medium to large volumes.
All systems are designed with food safety and durability in mind. Components in contact with the product are made from stainless steel or food-grade polypropylene, both tested to meet the highest standards. Stainless steel pipes ensure seamless connections between the filter press and auxiliary devices, such as feeding and dosing pumps, which are selected based on specific application requirements.
To ensure optimal performance, every system is equipped with a PLC that monitors key process parameters, including temperature, pressure, and flow rates.
Leveraging decades of experience, Galigani Filtri continues to develop advanced filtration solutions for a wide range of food applications, delivering efficiency, reliability, and unmatched product quality.
