By Eureka Grinders

Eureka Libra 55 (GBW)

Regular price $1,099.00
Regular price Sale price $1,099.00
Shipping calculated at checkout.
Color: Black

Eureka Grinders | Commercial & Prosumer Grinder Solutions

Eureka Grind-by-Weight

PRECISION BUILT INTO THE WORKFLOWLIBRA 55 GBW

Grind directly into the portafilter by weight—not time—with patented real-time dosing technology and repeatability to within ±0.2 gram.

Instant Grind Weighing55 mm Flat BurrsMade in Florence
Eureka Mignon Libra 55 grind-by-weight grinder in matte black
±0.2 gDose consistency
55 mmFlat steel burrs
1.8–2.5 g/sEspresso output
300 gBean hopper
Eureka Libra 55 weighing coffee directly into a portafilter

Weight is the recipe

Skip the timer. Stop at the target.

Timed grinders estimate dose from how long the burrs run. Libra measures the actual coffee entering the portafilter in real time, automatically stopping at the programmed weight. The result is a faster workflow with fewer scale transfers, less correction and less wasted coffee.

  • Real-time grind-by-weight dosing
  • Automatic tare before grinding
  • Two programmable dose weights
  • Direct-to-portafilter convenience
LIBRA GBWWEIGHING
18.0g
0 gTarget reached

Instant Grind Weighing Technology

Precision without an extra step.

The patented weighing system is integrated into the adjustable portafilter support. Select a stored dose, place the portafilter, and Libra manages the tare, grind and stop sequence in one station.

±0.2 gManufacturer-rated dose consistency
2 dosesProgrammable by weight

Four-step workflow

From empty basket to exact dose.

Select

Choose the programmed single or double weight on the touch display.

Place

Set the portafilter on the tool-free adjustable fork.

Tare

The integrated load system establishes the empty portafilter weight.

Grind

Libra weighs continuously and stops automatically at the target.

More control mid-dose

A smart system that still follows the barista.

Start, pause or change between stored doses while grinding, use continuous grind-by-weight when required, and rely on automatic stop if the portafilter is removed.

Flexible dose control

Switch from single to double during the grind or pause the cycle when the workflow demands it.

SINGLEDOUBLE

Portafilter safety

Grinding stops immediately if the portafilter leaves the weighing fork, protecting the scale and reducing spills.

PORTAFILTER DETECTED

Precision beyond the scale

The complete Mignon espresso platform.

01

55 mm flat burrs

Hardened-steel burrs deliver reliable espresso grinding at approximately 1.8–2.5 g/s.

02

Stepless regulation

Eureka’s micrometric lower-burr adjustment provides near-infinite control while preserving settings during maintenance.

03

Silent Technology

Anti-vibration and sound-insulated construction make the daily grind more comfortable at home.

04

ACE system

Anti-clump and electrostatic control regulates the grounds flow for cleaner, more even dosing.

05

Anti-vibration weighing

The support system helps maintain dose accuracy even when the portafilter is lightly disturbed.

06

Tool-free fork

Adjust portafilter height without extra tools to suit different basket and handle configurations.

Eureka Libra grinder control and grind-by-weight fork details

Built for cleaner dosing

Stable support, less spill, easier preparation.

The height-adjustable fork positions the portafilter on the load sensor while a compatible dosing funnel helps keep grounds inside the basket. Together they create a direct, tidy transition from grinder to distribution and tamping.

  • Adjustable portafilter support
  • Factory pre-calibrated weighing system
  • Continuous GBW mode for custom doses
  • Optional larger 510 g hopper available

Available at Espresso Dolce

Black, white or chrome.

Three finishes let Libra’s intelligent workflow integrate naturally with both contemporary and traditional espresso setups.

Eureka Libra 55 matte black finish
Matte Black
Eureka Libra 55 white finish
White
Eureka Libra 55 chrome finish
Chrome

A closer look

Designed around the weighed dose.

Technical specifications

The numbers behind effortless accuracy.

An espresso-focused grinder that combines Eureka’s proven Mignon platform with a real-time integrated scale.

Dosing technologyPatented Instant Grind Weighing
Dose consistencyApproximately ±0.2 g
Burrs55 mm flat hardened steel
Burr life ratingApproximately 300 kg of coffee
Recommended useEspresso
Motor310 W AC, 1,350 RPM
ProductivityApproximately 1.8–2.5 g/s
Grind adjustmentStepless micrometric regulation
Dosing modesTwo programmable weights plus continuous GBW
Hopper capacity300 g; optional 510 g hopper
Dimensions124 W × 192 D × 390 H mm
WeightApproximately 6.5 kg / 14.3 lb
Available finishesMatte black, white or chrome
Country of manufactureItaly

Eureka Libra 55 GBW

Set the grams.
Let Libra do the rest.

Real-time weighing, repeatable espresso dosing and the beautifully compact Mignon platform—precision without the extra steps.