The carrier that makes or breaks your grind
The inner burr doesn't sit directly on the shaft but on a holder. This part, part number F.6.029.01, determines whether the burr runs perfectly centred and flat. If the holder is worn out, even the most expensive new pair of burrs won't help.
You notice it in the result, not on the part itself: the grind setting can no longer be fine-tuned, there's suddenly a world of difference between two notches, and the ground coffee becomes uneven. If you only replace the burrs, you'll have the same problem again before long.
When it's due
The burr has play on its mount. The grind setting jumps or can't be set reproducibly. The grinding mechanism runs unevenly or knocks. Or the holder was visibly damaged during the last burr change, for example at the screw eyes.
At a glance
| Type |
Holder, carrier for the inner burr |
| Installation location |
Grinding mechanism, inner burr |
| Fits |
La Marzocco grinder. The item description doesn't specify a model – send us your grinder's serial number and we'll confirm the fit before shipping. |
| Scope of delivery |
1 holder, without burrs and without screws |
| Part number |
F.6.029.01 |
| Finish |
Metal, machined |
| Installation |
Installation by a qualified professional recommended |
| Brand |
La Marzocco |
Who it's for
For workshops and for roasteries that service their grinder themselves and want to do a clean job when changing the burrs. If you're tuning a grinder for reproducibility, you'll come across this part sooner or later.
Important for installation
The grinding mechanism has to be opened for this, and afterwards the zero point needs to be found again. The grinder must be disconnected from the mains beforehand. We don't provide step-by-step instructions here – rotating grinding mechanisms are no place for experiments.
What goes with it
From our workshop in Bern and Zurich: After every intervention in the grinding mechanism, we first grind 100 grams of old beans and throw them away before setting the grind – our routine, not a manufacturer requirement. Otherwise you end up adjusting to metal dust instead of coffee. After that, we like to calibrate with Nutty Delight, Cozy Chocolate or Very Nutty from our coffee beans.
Returns excluded
Service parts are excluded from exchange and return. They are sourced specifically for each order and cannot be resold after installation or a test fit on the machine. So check the model, year of manufacture and serial number of your machine before ordering – or drop us a quick message and we'll clarify the fit together. Your rights in the event of defective goods remain unaffected.
Frequently asked questions
Are burrs included?
No. Only the holder is supplied under F.6.029.01.
Which grinder does the part belong to?
The item description doesn't specify a model, and we don't want to guess. Send us your grinder's serial number and we'll check.
Do I need to recalibrate after the replacement?
Yes. After every intervention on the grinding mechanism, the zero point needs to be found again and the grind setting readjusted.
How can I tell that the holder is to blame?
A typical sign is a grind setting that can no longer be adjusted finely and reproducibly, even though the burrs are still sharp.
Can I see the part in your showroom?
Yes, in Bern at Gerberngasse 44 and in Zurich at Hagenholzstrasse 50b.
Questions about the fit? Write to us at [email protected]. We deliver across Switzerland and to Liechtenstein in 2-4 working days.
