The Mazzer Robur S is a 71mm conical-burr grinder built for the high-volume bar. Average grinding speed reaches 1s/5g @50Hz (1s/6g @60Hz) with consistent dosing, uniform coffee grounds, low retention, and advanced electronic control. Pre-set for IoT cloud connectivity, the Robur S puts real-time grind reporting and remote diagnostics at the barista's fingertips.
High-Performance for High-Volume Coffee Shops
User-friendly memory track system to index grind setting with a wider, more precise adjustment range
On-demand grinding activated directly with the portafilter
Adjustable portafilter holder — grind hands-free and consistently center the flow of grinds
Pre-set IoT for accessing your grind report in real time on the cloud
Magnetic hopper tag holder to label the coffee in the hopper
Conical Burrs — 71mm conical burrs 100% Made in Italy by Mazzer.
Low Retention — Retention reduced by 52% versus prior generations.
Keep It Safe — Special cooling system with double fan and low-RPM motor preserve aroma during long pulls.
Grind Flow Control (GFC) — Removable aluminum outlet insert with three interchangeable wire dampers (AntiClumping, AntiDust, Hybrid). Uniform coffee grounds in the portafilter with reduced electrostatic charge.
Easy Cleaning — Tool-free grinding-chamber cleaning with no loss of grind settings.
Technical Specifications
| Use | On-demand |
| Version | Electronic |
| Power | 800 W |
| Grinding Adjustment | Stepless micrometric |
| Burrs | Conical, 186C, Ø 71 mm (2¾ in) |
| Burr Speed | 420 rpm @50Hz | 500 rpm @60Hz |
| Body | Aluminum die casting |
| Hopper Capacity | 1.6 kg (3.5 lbs) |
| Cooling System | Double fan cooling system, split chassis |
| GFC Flow Regulators | Hybrid | AntiClumping | AntiDust |
| Recordable Time Settings | 3 |
| Extraction Method | Espresso |
| Output | High |
| Dimensions (W × D × H) | 252 × 464 × 720 mm (10 × 18¼ × 28½ in) |
| Weight | 28 kg (62 lbs) |
| Voltage | 120 V (US) |
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