Delta GB5 air-cooled chiller

The Delta GB5 is a professional-grade espresso machine produced by La Marzocco, a renowned leader in high-end coffee equipment. Known for its classic silhouette and exceptional thermal stability, the GB5 was named after Giovanna Bambi, the wife of Giuseppe Bambi (one of the founders), and features sophisticated engineering such as a saturated group head and PID temperature control. This model is widely utilized in specialty coffee shops globally due to its reliability and precision in water temperature management.

While the machine carries the 'GB5' designation, it is part of the La Marzocco portfolio. The brand is synonymous with artisanal Italian craftsmanship, with every machine being hand-assembled at the company's headquarters in Scarperia, near Florence. As of 2026, the company continues to operate under its historic identity while remaining a major player in the global commercial coffee sector, owned by the De'Longhi Group through its strategic stake in Espresso Service Management.