Tonda 98 Flat
Tax included where applicable. Delivery and installation arranged by your concierge.
NAVERQIO Grinders — where the cup is decided
The Tonda is where the cup is actually decided: big flat burrs, matched and shimmed to zero chirp, dosing that lands within a tenth of a gram, and the low-retention path that makes dialling in cheap instead of wasteful.
A grinder is a bearing problem wearing a coffee costume. We use oversized sealed bearings, direct or belt drives chosen for the burr mass, and motors wound to reach speed without heating the grind path. Retention is engineered out with declumpers, bellows-ready throats and anti-static exits rather than promised away.
Design & Craft
- 83–98 mm flat tool-steel burrs for shop-speed espresso with tight spreads
- Burr pairs matched on an optical comparator and shimmed to zero chirp
- Low-retention throat purges with a single dose after adjustment
- Burr wear tracked by kilograms; replacements change in minutes
- Grind-by-weight dosing lands within a tenth of a gram
- Machined burr carriers hold alignment through shipping and seasons
Specifications
| Burr set | 98 mm flat, tool steel |
| Dosing | Grind by weight, ±0.1 g |
| Retention | Under 0.3 g measured |
| Sound | Low 70s dB(A) under load |
| Power | 230 V |
| Weight | ≈ 25.4 kg |
| Burr life | Rated in kg; stocked 15 years |
Care
Brush the burr chamber weekly and run grinder cleaning pellets monthly; never wash burrs in water. Check alignment and burr wear at the annual service — we track burr life by kilograms and remind you before the cup does.
Questions, Answered
Does it come aligned?
Every unit is shimmed and chirp-checked before dispatch, then re-checked after transport at commissioning. Alignment is a deliverable, not a lottery.
Will it work for both espresso and filter?
Single-dose models with stepless adjustment travel the whole range comfortably. Dedicated shop grinders are happiest owning one brew method — we will advise honestly if a listing is being asked to do too much.
The NAVERQIO Promise
Every NAVERQIO machine leaves Prague bench-tested on the water profile of its destination — send us your water report and it ships dialled in, with the test shots' numbers in the box.