Description
Single dosing on the S70
This bellows hopper is cut to fit the S70. We have not printed burr diameter or hopper capacity here — the S70 is sold under more than one badge depending on market, published specifications differ between them, and we are not going to pick the most flattering set.
What the part does
It replaces the stock bean hopper with one sized for a single weighed dose. Load the beans you want, grind them, then press the factory moulded silicone bellows. The air pushes grounds still sitting in the burr chamber and exit chute down and out, instead of leaving them to mix into your next dose.
What it does not do
It will not change your grinder’s burrs, motor or adjustment mechanism, and it will not make a grinder consistent if the burrs are worn. What it changes is the workflow around the grinder: dose by weight, swap coffees freely, and clear the chamber between them.
Version 3
Every unit we ship today is Version 3. The bellows is a custom branded, factory moulded silicone part — it is no longer 3D printed, as our earlier versions were.
How it is made
- 3D printed: lid, lid lock ring, connector, air-leak prevention gasket
- Factory machine moulded: silicone bellows
Materials
- Lid, lock ring, connector: PETG hard plastic
- Air-leak prevention gasket: TPU — material info
- Bellows: factory moulded silicone
Fitting
This hopper is made for the grinder named on this page. Fit tolerances vary between units and production runs, so minor adjustment may be needed to seat it perfectly on your grinder. Every unit is covered by our 2 year warranty.