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Rancilio Rocky Doserless Coffee Grinder

By: Rancilio
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5 out of 5 stars based on 71 customer reviews

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This product carries a 2-year warranty

Improving upon the Rocky is not an easy task. The Rocky has been one of the top home espresso grinders for years. The addition of the doserless model gives you a fantastic grinder with a chute in place of the doser. The chute reduces the amount of wasted coffee as well as the amount of stale coffee often left behind in dosers. Grind only what you need directly into your portafilter. The doserless Rocky looks almost identical to the stainless steel Rocky with the obvious lack of a doser. A main power switch is located on the right of the machine. Another "push and hold" switch on the front of the grinder is used to start and stop the grinding. The holding fork for the portafilter handle has been drastically redesigned and provides a very stable platform to grind into. The Rocky is the grinder of choice for most finicky home baristas due to its quality of grind and durability. Please note that most coffee grinders are tested at the manufacturer and coffee grounds may be found in the grinder as a result. Rancilio is in the process of updating the look of the Rocky Grinder, it may ship with either a rose tinted or blue tinted bean hopper. Available in Stainless Steel.


Features & Benefits: Coffee

Heavy Duty Construction

The Stainless steel version has a stainless steel back panel and base with a heavy-duty black case aluminum frame. The Black & White has a black plastic base and back cover with a with heavy-duty white aluminum frame.

Doserless Grinder

This grinder uses a "chute" instead of a doser traditionally found on semi-commercial grinders. A retaining fork holds your portafilter handles as you grind directly into it. A doserless grinder will reduce wasted and staled coffee by grinding only what you need. No coffee is left behind.

Multiple Grind Settings

The Rocky can be quickly and accurately adjusted using its 55 different grind settings. To make the adjustment you just push down on a release lever and turn the bean hopper. You can quickly and easily change from course to fine. It can grind your beans into a fine powder for Turkish coffee or espresso and even course enough for French press. With a Rocky the most particular barista will be able to fine-tune their extractions to perfection.

Heavy Duty Motor

The Rocky’s motor is legendary. It is the same motor that Rancilio uses in the Commercial MD40 grinder. It is a 166-watt direct drive motor that is very quiet and extremely powerful. It will not slow down even under the most demanding workload. The motor alone weighs around 12# and spins at 1,725RPM. It has a high temperature overload switch to prevent possible damage if a stone gets caught in the burrs.

Top Quality Grinding burrs

Like the motor the grinding burrs on the Rocky are the same ones that Rancilio uses in the commercial MD40 grinder. They are the flat plate style and 50mm in diameter that are even designed to handle a commercial load.

Easy to use Controls

To turn the grinder on and off you just have to flip the switch that is located on the lower left front corner.

Tinted Hoppers

The bean hopper is made of rose tinted plastic that is designed to help keep your coffee fresh. A cover helps seal in the freshness. The bean hopper can hold up to 10.5 oz coffee.


Misc Data
Manufacturer: Rancilio
Model: Rocky Doserless
Dimension - Width (Inches): 5.25
Dimension - Height (Inches): 14
Dimension - Depth (Inches): 9.75
Weight (lbs): 17
Watts: 140
Volts: 120
Grind Selection: All grinds
Recommended Applications: Home / Commercial
Grinding Method: Burr
Drive System: Direct Drive
Burr Type: Flat
Burr Material: Stainless Steel
Burr Size (Millimeter): 50
Clearance Height for Portafilter (Inches): 3.25
Built-In Tamper: No
Housing Materials: Stainless Steel
Bean Hopper Material: Smoked Plastic
Removable Hopper: Yes
Frame: Aluminum
Bean Hopper Capacity (Oz): 10.5
Dosing Options: Doserless
Portafilter Compatibility: All
Number Of Grind Settings: 40
Programmable Grinding: No
Programmability type: Manual
Controls: Push Button
Grind Setting Controls: Stepped
Temp 4 Oz Grounded (F): 77
Sound No Beans (Db): 61
Sound With Beans (Db): 77
RPM (Burrs): 1725
Easy Access To Burrs: No
Cleaning Products For Burrs: Urnex Grindz
Warranty (Years): 1
Country Of Manufacture: Italy
NSF Certified: No
Recommended Applications: Home / Commercial
Service provided
Repairs By: Whole Latte Love
Contact Number: 888-411-5282


My espresso has been running through the grounds quite quickly lately suggesting too coarse a ground. I have my 3 y.o.Rocky set to 10 and would set it finer if I could, however I've noticed resently that the grind setting cannot be set any lower. This wasn't always the case tho I was never able to turn it any farther than, say, 7 or 6. How can I readjust it to grind finer? 

Answer by Sanfam:

You may have developed a clog in the grinder!  I would suggest watching our video on cleaning and calibrating the Rocky Grinder here: https://www.youtube.com/watch?v=I3A6O9cMtmI

Karla asked:

i am a small home micro roaster. I sell a few pounds every month or so to friends and family. Most buy whole bean but a couple folks need it ground (I have begged them to get a small grinder to no avail). Would I be able to put my one pound coffee bag under the chute? 

Answer by Sanfam:

The chute has just enough space to make this work.  Additionally, the portaholder piping is removable.  It's simply pressed into two rubber grommets.

keithgg asked:

My Rocky Rancilio and my Expobar Pulsar have peformed admirably for about 10 years. When should I change the burrs? I typically make just two espressos daily.

Maybe a different forum for the expobar- do I need to do anything more than frequent cleaning? 

Answer by Sanfam:

With the Rocky Grinder, we typically find that replacing the burrs once every 5 years is ideal.  At a 10 year run, you're likely looking at burrs which are extremely worn and dulled down from their peak form, both from wear and tear due to grinding and general oxidation and decay of the burr material.  

Regarding the Expobar, your cleaning needs depend on your usage habits and the quality and condition of the water it is fed. The harder and/or more alkaline the water, the more frequently the boiler will need to be fully serviced and decalcified.  While it's possible to descale/decalcify these boilers at home, it's not an easy task to jump into, and thus isn't really something we recommend without research some pre-existing level of comfort working with hydraulic systems.  

Andrew asked:

After two grinder failures in a year I'm looking for a solid, reliable coffee grinder, and the Rancilio looks like the ticket. But I grind beans for coffee, not espresso. Historically, I ground beans for 3 or so days worth of coffee at once (also, I do not keep it in the kitchen so as not to wake the family up in the AM wirh the roar of grinding). Using the Rocky how could I catch the grounds as they exit the grinder? Has anyone used any kind of cup for this purpose? Thanks. 

Answer by Nick B:

Hi Andrew,

The Rancilio Rocky that you're looking at is actually the doserless model, that means that it's designed to grind beans directly into a portafilter for brewing espresso. That being said, you could easily position a container underneath the chute to grind your coffee into your container. Depending on how you store your coffee, if the container won't fit underneath, you could use a cup as you said and then transfer the grounds into storage. I hope this helps!

my spout broke off! and i need help!

i bought this from you years ago...

Answer by mjackson:

We have those in stock call our technical department at 1-888-411-52825 Ext 3. Be caereful when you put it on to not make it to tight or it may crack. 

What are the recomended grind settings for espresso, pour over, and french press?

Answer by Maggie:

For espresso, a good starting point is between 5 and 8; pour over would be somewhere around 30; and French press would be somewhere between 20 and 30-it all depends on the kind of coffee and how recently it's been calibrated.  

I have a Gaggia MDF and the noise is making my household crazy.  I have a Silvia ( with a DIY PID ) and roast my coffee.  I'm pretty happy with the grind of the MDF, but would like something quieter.  I've wondered abou tthe Rocky.  Thoughts?  Thanks 

Answer by John Seymour:

I also used a MDF for several years. I was always worried I would wake up my apartment neighbors. I am not sure about the Rocky grinder. I upgraded to a Ceado grinder and I can vouch that they are very very quiet.

Mitchell asked:

I can use this machine to grind both brewed coffee using a paper filter and espresso?
I assume I cannot, if I buy the Rocky that predoses for espresso portafilters...?

Answer by mjackson:

Mitchell, Technically you could but it would be much more difficult to get the coffee into a filter. It also would be harder to use the grounds up in between changing settings. I would definitely get the doserless one.

noname asked:

The advertisement for this grinder indicates that is has a removable bean hopper. Can you buy additional hopers to easily change different beans?

Answer by techkathy:

It does have a removable bean hopper. But there ate 3 screws that hold the hopper in place. The hopper is also open at the bottom. If the hopper were removed and still had beans inside they would spill out of the open bottom of the hopper. Other grinders (Mazzer, Ceado, etc) do have a hopper designed to be removed easily to switch beans.

Gary asked:

I have had my grinder since 2008 and have not had any problems with it. Paired with my Gaggia Classic, I have been a happy espresso drinker for many years. I would recommend the grinder as a reasonbly priced machine for the espresso officianado. While the majority of time and depending on the bean, I keep the setting at between 13 and 7 to get the 25 second "pull". However, I am now interested in grinding coffee for a french press. I am hoping that you can provide me some guidance on what range of grind settings I should start with for this grinder. Based on your experience, if you can get me in the ballpark I will take it from there. Thanks

Answer by DanielCulver:

Gary, grinding for a French Press is often a conundrum. Many beans require a very fine grind and a lessened steeping to get the best flavor, but many people (myself included) are wary of consuming too many fine coffee grounds that you would get with the French Press using a very fine grind. One way I deal with that is to preheat my cups and that allows time to let the drink settle a little. Of course, this means handle your drink carefully so as not to stir up the grounds as you're drinking. I hope this helps.

Answer by Gary:

Daniel, thank you for taking the time to answer my question. I had not thought about using a french press in that way given the size of the screen mesh of the filter. Reminds me of the turkish coffee I used to make many years ago in a pan on the stove. That was before all of the stuff we have available to us in the US market today. think my take away here is to set the grind to a setting the yields the preferred taste so I think I will take that approach and enjoy trying all the different grinds. Thanks again.

DrSteel asked:

I have a 10-year old Rocky (doserless). It has been great once I learned how to dial in for variation in beans, taste, etc. Unfortunately, it suddenly stopped working completely, suggesting some sort of electrical fault. I have removed the bottom of the unit and can identify the main electrical parts. Trying to figure out what tests I can do to identify the faulty component. I have a multi-tester and a bit of knowledge but want to make sure I am barking up the right trees. Really miss my morning espresso!

Answer by Sanfam:

As far as the Rocky is concerned, it's basically just a large, AC-Driven motor with the output shaft connected to the lower burr plate. Unfortunately, I am not familiar enough with the motor's design to give you a solid idea of where to begin, but I would suggest researching AC Motor repair online. If the unit simply failed outright, it could indicate a fault with either the rectifier, the windings on the stator, or the rotor/shaft. As these motors can only be purchased as a single unit--Replacement of the entire motor/burr assembly is typically the best option.

Answer by DrSteel:

Thanks for the input. I agree that it may be a motor failure. However, the drawings show a starter capacitor plus other components in addition to the motor. If the motor has failed, replacement cost suggests buying a whole new unit. If it is a simpler part (resistor, capacitor, switch) maybe it will be a much cheaper repair. Just not quite sure on how to determine the faulty component. Not sure how electrical motors fail, but there was no differences in sounds or performance before it just stopped working.


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