The Rancilio CLASSE 20 ASB 2 Group is a true professional espresso machine engineered for high-performance cafés, restaurants, and specialty coffee venues that demand precision, consistency, and thermal stability. Designed and manufactured in Italy by Rancilio, the ASB version represents the most advanced thermal control option within the Classe 20 range.
 
Advanced Thermal Control — True Multi-Boiler System
Unlike single-boiler or heat-exchanger designs, the ASB (Advanced Steady Brew) version features a multi-boiler configuration with independent micro-boilers and dedicated heating elements for each brew group. This allows:
Precise temperature stability for each grouphead
Independent temperature adjustment per group via the touchscreen interface
Simultaneous brewing and steaming without thermal fluctuation
Highly repeatable extraction performance in busy service periods
This multi-boiler setup gives skilled baristas maximum control over extraction profiles and consistency — a key advantage in commercial espresso settings.
 
Core Features
Dual brew groups with micro-boiler controlled by the 4.3″ touchscreen
Multi-boiler thermal system for best-in-class temperature performance
Intuitive digital interface to set temperatures, doses, and shot timers
Automatic dosing (USB) for consistent espresso volumes
C-lever steam valves and cool-touch steam wands for professional milk texturing
Hot water outlet for tea, americano, or pre-infusion use
Durable brass groupheads and ergonomic portafilter handles
 
Why It’s Great for Commercial Use
The Classe 20 ASB is ideal for environments where thermal consistency and throughput matter. Its independent boiler architecture ensures extraction temperatures remain stable even during peak periods, and its touchscreen interface gives rapid access to advanced settings without slowing workflow.
 
Who It’s For
Specialty cafés with high volume service
Restaurants and hotels with espresso-centric menus
Hospitality venues prioritising consistency and operator control
Coffee professionals who require precise thermal profiling