Mazzer Robur S Electronic Coffee Grinder ROBURSE

The Mazzer Robur S is an electronic coffee grinder with 71 mm conical steel burrs turning at 420 rpm on Australian 50 Hz supply, with stepless micrometrical grind adjustment. Conical burrs at that diameter running slowly is the specification high-volume specialty bars ask for: less heat into the coffee and a more even grind. It has electronic dosing, a digital interface, a 1.6 kg hopper and a ventilation system to prevent overheating through a long shift.

Why operators choose the ROBURSE

• 71 mm conical burrs — large conical burrs are the specialty-bar specification. They cut rather than smash, which gives a more even particle size and a cleaner extraction than a small flat set
• 420 rpm at 50 Hz - deliberately slow — slow burrs put less heat into the coffee, and heat is what dulls aromatics. The published figure is 420 rpm on Australian supply (500 rpm on 60 Hz markets)
• Stepless micrometrical adjustment — infinitely variable rather than clicked steps, so you can land exactly on the extraction you want instead of choosing between two settings either side of it
• Ventilation system to prevent overheating — the failure mode on a busy grinder is heat build-up changing the grind through the shift. Active ventilation is what holds it steady from open to close
• Electronic dosing with a digital interface — doses are set and repeated electronically rather than by a mechanical timer
• 1.6 kg hopper — a high-volume hopper - the largest of the two Mazzer grinders we carry
• Steel burrs — replaceable wear parts on a known Mazzer specification
• Built for high-volume cafes and specialty roasters — the manufacturer's own positioning, and the burr size and speed back it up

Specifications

Venue suitability

The Robur S suits high-volume cafes, specialty coffee shops and roasters where grind quality is the point of difference. The 71 mm conical burrs and the deliberately slow 420 rpm are what put it above a general-purpose grinder — and what justify its price against the flat-burr Super Jolly V Pro.

See the full coffee grinders range or browse every Mazzer model we carry.

Installation & delivery

It runs on a 240 V supply. Our product data records no wattage for this model, so if you need the load for a circuit calculation, ask our team rather than working from this page. The recorded dimensions also look wrong — see the FAQ — so confirm the bar footprint with us before you commit the position. A grinder needs clearance above it for the hopper to be filled and lifted off.

Frequently asked questions

Q: Conical or flat burrs - what is the difference?

Conical burrs cut the bean progressively and can run slower, which puts less heat into the coffee and tends to give a more even particle size. Flat burrs run faster and are often described as producing more clarity. The Robur S uses 71 mm conical burrs at 420 rpm; the Super Jolly V Pro we also carry uses 64 mm flat burrs at 1,400 rpm. Neither is simply better - they suit different approaches.

Q: Why does 420 rpm matter?

Slower burrs generate less heat, and heat dulls the aromatics you are paying for in specialty coffee. The figure is 420 rpm on Australian 50 Hz supply; the same machine runs 500 rpm in 60 Hz markets, so quote the 420 figure locally.

Q: What are the machine's actual dimensions?

We are not confident in what our data says. It records 720 x 240 x 464 mm labelled width x depth x height - but a grinder that is 720 mm wide, 240 mm deep and only 464 mm tall is not a shape any grinder takes, and the Super Jolly V Pro in the same range records a sensible 240 x 410 x 595 mm. The axes look transposed. Ask our team for the real bar footprint before you plan the position.

Q: What power does it draw?

Our data records only the 240 V supply, with no wattage. Rather than estimate it we would rather you asked - contact our team if you need the load for a circuit calculation.

Q: How big is the hopper?

1.6 kg, which is the larger of the two Mazzer grinders we carry.

Q: What warranty does the ROBURSE come with?

No warranty term is recorded against this listing in our product data, so rather than guess we would rather you asked. Contact our team for the current term before you order. Terms vary by product — see our warranty information page for full details.