Wiedemann Rotary Knob for ECM – Walnut
Wood under your hand as you open the valve – warm, grained, and every piece one of a kind.
The Wiedemann rotary knob in walnut with a 7 mm internal square in stainless steel, for ECM machines.
What Makes the Rotary Knob Special
The rotary knob replaces the valve knob on your ECM and gives the machine a personal, warm touch. Walnut brings a dark, warm tone. At its core sits a 7 mm internal square profile in stainless steel that fits onto the valve shaft. Since wood is a natural material, every grain pattern is unique.
We work with ECM as a partner, and a wooden rotary knob gives the machine your personal touch. Our opinion is one of many.
At a Glance
| Type |
Wooden rotary knob (valve knob) |
| Wood type |
Walnut |
| Profile |
7 mm internal square, stainless steel |
| Suitable for |
ECM machines with a 7 mm square valve shaft |
Who it's for
For anyone with an ECM who'd like to replace their steam or hot water knob with a warm wooden knob.
What you can pair it with
The rotary knob sits on your ECM: you'll find the machines among our espresso machines, and our advisory tool helps you make the right choice.
For the rest of your barista gear, the Normcore Collection is affordable and precise, while the Weber Workshops Collection shows the especially finely crafted side. A matching tamper is available too.
Frequently Asked Questions
What wood is the rotary knob made of?
Walnut – every piece has its own grain.
What profile does it have?
A 7 mm internal square in stainless steel that fits the valve shaft of ECM machines.
Does this part fit my machine?
Check the model and size against the details above. In the showroom or by email, we're happy to check it against your setup.
Can I see the part in person before buying?
Our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b) show a wide selection, but not our entire range – the display changes. Drop us a quick line at [email protected] before your visit, and we will check whether the product you have in mind is currently there. Online, we deliver in 2–4 business days, across Switzerland and to Liechtenstein.
A tip from our coffee roastery
Fresh coffee makes the difference. Our Cozy Chocolate and Nutty Delight bring full-bodied chocolate and nutty notes. For maximum body without acidity, there's the Very Nutty, and for a fruity experience, the Wild Peach. That's our recommendation – one of many.
