La Marzocco Linea PB Volumetric Commercial Espresso Machine (2 Group)

The Linea PB is built around La Marzocco’s iconic saturated group head design — a thermosiphon system that keeps the brew group in constant thermal equilibrium with the coffee boiler, eliminating heat loss and ensuring a perfectly stable extraction temperature. Paired with two fully independent PID-controlled boilers, the machine can steam and brew simultaneously without any thermal compromise. The result is unmatched temperature stability and shot-to-shot repeatability — even during the most demanding 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
• Dual Independent Boilers — Separate coffee boiler (1.4 L per group) and steam boiler (11 L) allow simultaneous full-pressure steaming and extraction without interference
• Volumetric Dosing (PB) — 4 programmable volumetric doses per group plus a continuous pour option for consistent yields and reduced waste
• 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

Ideal For

• High-volume specialty coffee bars and third-wave cafés
• Hotel lobbies, restaurants, and airport lounges requiring reliability at pace
• Training academies and barista competition preparation
• Multi-roaster concepts needing per-group temperature flexibility