La Marzocco Linea PB Volumetric Commercial Espresso Machine (3 Group)

The Linea PB is built around La Marzocco’s iconic saturated group head design — a thermosiphon system that keeps each brew group in constant thermal equilibrium with the coffee boiler, eliminating heat loss and ensuring a perfectly stable extraction temperature. With three groups sharing a 5 L coffee boiler and an 11 L steam boiler, independently PID-controlled, the machine keeps pace with a full bar of baristas pulling shots and steaming milk in parallel. The result is unmatched temperature stability and shot-to-shot repeatability — even during the busiest service rushes.

Key Features

• Saturated Group Heads — Thermosiphon-based groups permanently connected to the coffee boiler, guaranteeing thermal stability within ±0.1°C across every shot, on all three groups
• Dual Independent Boilers — A 5 L coffee boiler and 11 L steam boiler allow simultaneous full-pressure steaming and extraction across three groups without interference
• Volumetric Dosing (PB) — 4 programmable volumetric doses per group plus a continuous pour option for consistent yields and reduced waste at every station
• Electronic Pre-Infusion — Programmable pre-infusion phase gently saturates the puck before full pressure, improving extraction uniformity and reducing channelling
• PID Temperature Control — Independent PID controllers per boiler allow precise on-the-fly temperature adjustment — critical for dialling in different origins and roast levels
• Rotary Pump — Built-in rotary pump operates quietly, maintains stable 9-bar line pressure, and is designed for continuous high-volume commercial use across three groups

Ideal For

• High-volume specialty coffee bars needing three simultaneous brewing stations
• Busy restaurants, hotels, and event catering operations
• Growing roasteries and multi-barista training academies
• Multi-roaster concepts needing per-group temperature flexibility at scale