Cinoart PTB-MY Auto Tamper
You slide the portafilter into the fork, a sensor detects the handle, and in around 1.2 seconds the piston lowers – level and at exactly the pressure you set. The first and the fiftieth shot are compressed the same way.
The Cinoart PTB-MY is an automatic tamper that sits under the grinder: Cinoart developed it for Mythos grinders and the Anfim SP II, so grinding and tamping happen in one place and the counter stays clear.
Features
Cast housing
Cinoart analysed the forces inside the device and ran thousands of fatigue tests so the structure holds up under high pressure over the long term. The housing is cast; frame and exterior are metal.
Quick switching via three presets
The 4.3-inch touchscreen has three preset buttons. Each stores its own pressure and its own number of tamp cycles, for example for single and double. Pressure can be adjusted in 1-kg increments.
Counter function
In the settings you can activate a counter that records the tamps per profile. Cinoart describes this as a way to keep track of the daily number of shots. The counter can be reset at any time.
Guide Leveling System
A level coffee bed is the main job of a tamper. Cinoart developed its own guide for this, the patented Guide Leveling System: insert the portafilter, let go, and the disk meets the grounds squarely.
Fits Compak and Markibar
For other grinder brands, such as Compak and Markibar, Cinoart offers an additional stainless steel frame on which the PTB-MY sits under the grinder.
The details in daily use
Each preset allows one, two or three tamp cycles, including two different pressure levels in a row, for example 8 kg first, then 30 kg. The tamper disk is replaceable and, according to Cinoart, fits baskets from 53 to 58.3 mm, including VST, on all portafilters with one, two or no spouts. The fork can be height-adjusted to your portafilter.
Cleaning mode raises the disk so you can brush off grounds and oils daily; the disk is also changed via the same mode. Parameters can be locked so nobody on the team changes the pressure by accident. Overcurrent protection on the electronics protects the main board during long, fast operation.
At a Glance
| Brand | Cinoart |
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| Model | PTB-MY (Precision Tamp Below, for Mythos and Anfim SP II) |
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| Pressure range | 2–38 kg, in 1-kg increments (according to the user manual) |
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| Tamp cycle | approx. 1.2 s; 1, 2 or 3 cycles per preset |
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| Tamper disk | 58.3 mm, flat, replaceable, non-stick coating (nano, food-safe) |
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| Compatible baskets | 53–58.3 mm, incl. VST |
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| Controls | 4.3-inch touchscreen, 3 presets, counter, parameter lock |
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| Leveling | patented Guide Leveling System (GLS) |
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| Voltage | 110–240 V, 50/60 Hz |
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| Dimensions / weight | 389 × 188 × 198 mm / 5.95 kg |
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| Housing | cast, metal frame and metal exterior |
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| Color | Black |
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| Included according to Cinoart | QR code card, cleaning tool, grounds tray, screwdriver |
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Why level tamping matters
When hot water hits the puck at around 9 bar, it seeks the path of least resistance. An uneven or crooked tamp favors channeling: at the weakest point, water shoots through and over-extracts there, while the rest of the puck stays under-extracted. A homogeneously compressed puck lets water pass through more evenly – the result is usually a denser body and a calmer crema. How large the effect turns out depends on grinder, bean and recipe; that's our observation, one of many.
Honestly speaking
Nobody needs an auto tamper – tamping by hand works. The PTB-MY pays off where consistency and speed matter: with many shots back to back, with different people working the machine, or when you want to spare your wrist. At just under 6 kg, it's a device that gets its permanent spot under the grinder.
Who it's for
For anyone who wants the same, level puck day after day – whether in a high-volume café or at home with a Mythos or Anfim grinder. And for anyone who wants to take one variable out of the equation, so only bean, grind size and recipe make the difference.
The PTB-MY works together with the rest of the workflow: matching grinders in our Coffee Grinders, a scale for dose and yield, affordable in the Normcore Collection or with an app in the Acaia Collection, manual alternatives in our Tampers. If you want to fine-tune your whole setup, our advice tool will help.
Frequently Asked Questions
Does the PTB-MY work with my grinder?
It's designed for Mythos grinders and the Anfim SP II. For Compak and Markibar, Cinoart offers an additional stainless steel frame. For other grinders, we're happy to check compatibility with you.
What pressure should I set?
A good starting point is around 20 kg; you adjust up or down depending on roast level and taste. What matters is repeatability, the PTB-MY delivers the chosen pressure the same way every time.
How do I clean the tamper?
Activate the cleaning mode daily, raise the disk and brush it off. The non-stick coating prevents coffee grounds from sticking.
Can I see the auto tamper 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. Delivery takes 2 to 5 business days across Switzerland and to Liechtenstein.
Tip from the roastery: As a coffee roastery, we see tamping as one of the quietly underrated adjustment points: even small differences in pressure shift the extraction. When every puck is compressed the same way, the character of the bean comes through more clearly – with a full-bodied roast like Cozy Chocolate or Nutty Delight that often means denser chocolate notes. That's our recommendation, one of many.
