Mazzer Robur S Electronic Espresso Grinder Black
- In stock, ready to ship
Mazzer Robur S Electronic
Conical-burr performance for a busy espresso bar
The Robur S pairs 71 mm conical steel burrs with a low-speed drive, programmable timed dosing and dual-fan cooling. It is built for cafés that keep their primary espresso grinder working through long stretches of service.
Its large hopper suits a house espresso used throughout the day, while the adjustable portafilter holder, programmable pause and accessible grounds path help baristas manage dosing and daily care.
Designed around your daily service
Built for busy bars
An 800 W motor and large conical burrs support repeated espresso doses during sustained service.
71 mm conical burrs
Mazzer steel burrs run at 500 rpm on the U.S. 60 Hz version, with stepless adjustment for dialing in espresso.
Less coffee left behind
Mazzer reports 52% lower retention than the previous Robur design. The Robur S still needs appropriate purging.
Dual-fan cooling
Two fans help manage heat during repeated grinding, supporting the workflow of a busy espresso bar.
Controlled grounds delivery
The Grind Flow Control outlet uses interchangeable dampers to help manage clumps, static and coffee spray.
Accessible grinding chamber
Open the chamber for routine cleaning without losing the grind setting, then check your recipe before service.
Repeatable workflow
Program your doses. Keep the bar moving.
Store three timed recipes for your usual baskets and drinks. The programmable barista pause lets you interrupt a dose to settle or distribute the coffee before grinding resumes.
The Robur S Electronic doses by time, not by an integrated scale. Check the delivered weight with a separate scale and adjust your recipe as the coffee, grind setting or conditions change.
At 60 Hz, its conical burrs operate at 500 rpm. La Marzocco USA lists an example output of 17 g in 3.4 seconds; actual grinding time varies with the beans and setting.
Coffee where it belongs
A controlled path into the portafilter
Mazzer’s Grind Flow Control system uses a removable outlet insert and interchangeable wire dampers to manage how grounds leave the chamber. Choose the appropriate damper for your coffee and follow Mazzer’s setup guidance.
The adjustable hands-free holder supports the portafilter beneath the chute. Keeping the chamber, outlet and holder clean helps maintain a tidy work area and a consistent daily routine.
Chamber access preserves the grind adjustment, reducing the amount of setup work after routine cleaning. Switch off and unplug the grinder before cleaning or servicing it.
Plan your counter
Dimensions & counter space
Standard 1.6 kg hopper configuration
| Drawing | Measurement | Millimeters | Inches* |
|---|---|---|---|
| B | Overall width | 252 mm | 9.92 in |
| D | Full depth, including tray | 464 mm | 18.27 in |
| H | Height, standard 1.6 kg hopper | 720 mm | 28.35 in |
| C | Body depth | 287 mm | 11.30 in |
| A | Body width | 234 mm | 9.21 in |
| E | Hopper diameter | 240 mm | 9.45 in |
*Inch values are approximate conversions from Mazzer’s millimeter drawing. Retail listings commonly round the overall size to 10 × 18.25 × 28.5 inches (W × D × H).
Allow space for the tray and hopper. The 11.30-inch body depth is not the full footprint. Allow 18.27 inches for the grinder with its tray, plus practical access for cleaning and additional overhead clearance for refilling and removing the hopper.
U.S. specifications at a glance
| Burrs | 71 mm conical steel |
|---|---|
| Grind adjustment | Stepless |
| Dosing | Three programmable timed doses; programmable pause |
| Motor / speed | 800 W / 500 rpm at 60 Hz |
| Electrical supply | 120 V, 60 Hz; 8 A service requirement |
| Hopper capacity | 1.6 kg (approximately 3.5 lb) |
| Net weight | Approximately 62 lb |
| Cooling | Dual fans |
| Full footprint | 252 W × 464 D × 720 H mm, including tray and standard hopper |
Plan for a stable counter that supports the grinder, beans and daily operation. Confirm the unit’s plug and installation requirements before arranging your bar.
Watch & learn
Official Mazzer tutorials for setting up the portafilter holder and maintaining the Robur S grounds outlet. Select a preview to load the video.
Set the portafilter holder
Mazzer’s shared tutorial for compatible commercial electronic grinders, including the Robur S.
Watch on YouTubeChange the Robur S GFC damper
A model-specific demonstration of the Grind Flow Control outlet and damper replacement.
Watch on YouTubeIs the Robur S right for your café?
The Robur S is a strong fit for a busy espresso bar using one house coffee for extended periods. Its 1.6 kg hopper and large conical burrs suit sustained service; a separate grinder is usually more practical for decaf or another coffee than repeatedly changing the beans in the main hopper.
For a high-output flat-burr alternative, compare the Mazzer Major V or Major VP. For a smaller commercial setup, consider the Super Jolly V Pro. Choose around peak demand, counter space and your preferred dosing workflow.
Robur S questions, answered
Does the Robur S Electronic grind by weight?
No. It uses programmed grinding times. Use a separate scale to confirm dose weight and make recipe adjustments.
Does 52% lower retention mean zero retention?
No. Mazzer’s figure compares the Robur S with the previous Robur design. Coffee remains in the grounds path, so appropriate purging is still part of dialing in and changing coffees.
Why is the full depth larger than some specification tables show?
The body is 287 mm deep, while the complete footprint with the tray is 464 mm deep. Use the full depth when planning the counter.
Can I clean the grinding chamber without losing the setting?
Yes. Mazzer designed the chamber for access without losing the grind adjustment. Follow the manufacturer’s instructions and check your dose and extraction when returning to service.
Is the Robur S suitable for home use?
Its workflow is commercial. A home installation would need room for its height and tray, suitable power and a counter that supports its weight. For lower daily consumption, a smaller grinder may be a more practical fit.
Explore the Mazzer collection or compare commercial coffee grinders with Espresso Outlet.
Shipping and delivery requirements vary by product, destination, and order type. Review the product-specific notes on this page and Espresso Outlet’s shipping, return, cancellation, and warranty policies before ordering.
Large or commercial equipment may require freight delivery, bench testing, electrical work, plumbing, or professional installation. Submit a support ticket before ordering if you need help confirming requirements.
