elegant engineering with superior temperature control

Equipped with a CPU board and designed for superior temperature control, the gb5 combines gracious lines and harmonious curves with powerful technological advancements, in line with classic La Marzocco design and spirit. The machine is an understated companion to any coffee bar.

Its unmatched temperature stability provide steady brew water and steam even at the peak of the morning rush. The gb5 has redefined the standard for temperature stability in modern espresso equipment in light of “PID” technology.

the gb5 has redefined the standard for temperature stability in modern espresso equipment.

Product Sheet


The PID Controller employs an algorithm to regulate when and for how long the heating element is engaged in the brew boiler. The PID controller allows more efficient and stable regulation of energy. With this level of control, temperature variability is reduced dramatically, making for a more consistent brew temperature. The barista is able to adjust the brew boiler temperature to a precise numerical value using a simple keypad without having to remove machine panels.


Saturated Groups
ensure unsurpassed thermal stability, shot after shot.

Dual Boiler System
separate boilers optimize espresso brewing and steam production.

Dual PID (coffee and steam)
allows you to electronically control coffee and steam boiler temperature.

Insulated Boilers
reduce energy consumption while contributing to temperature stability.

Ruby Flow Restrictors
synthetic ruby flow restrictors resist scale formation and erosion.

Pre-heating System
prior to entering into the coffee boiler, water is pre-heated – thus increasing productivity.



Stainless Steel Portafilters & Precision Baskets
for improved cup quality and consistency.

Digital Display
temperature display, shot timers and intuitive programming simplifies the adjustment of machine parameters.

Hot Water Economizer
fine tune the temperature of the hot water spout.

Tall Cups
allows you to use the machine with tall, to-go cups (+2.5cm /1in. in height).

Auto Back-flush Program
automatic cleaning program.



Available Models
2, 3 or 4 groups.

Machine Operation
automatic (AV), semiautomatic (EE) and mechanical paddle (MP) versions.

Cup warmer
maintain espresso and cappuccino cups heated at a proper temperature.

Barista Lights
LED lighting allows you to focus on your extraction and the cup.

High Legs
makes it easier to access beneath the machine (+7.5cm / 3in. in height).

Personalized Colors
customizable colors based on the RAL color system, on request.

Auto Steam
simple steaming system stops automatically at your desired temperature.


technical specifications

Specifications 2grp 3grp 4grp
Height (cm/in) 47,5 / 18,7 47,5 / 18,7 47,5 / 18,7
Width (cm/in) 75 / 29½ 95 / 37½ 119 / 47
Depth (cm/in) 62,2 / 24½ 62,2 / 24½ 62,2 / 24½
Weight (kg/lbs) 62 / 136,7 74 / 163,1 105 / 231,5
Voltage (VAC) 200 single / 3 phase
220 single / 3 phase
380 3 phase
200 single / 3 phase
220 single / 3 phase
380 3 phase
200 single / 3 phase
220 single / 3 phase
380 3 phase
Wattage Elements
4600 6100 8000
Optional Wattage Elements
3600 4800 6800
Coffee Boiler Capacity (liters)
3,4 5 6,8
Steam Boiler Capacity (liters)
7 11 15


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