Rancilio Rocky Doser V3 Espresso Coffee Grinder

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5 out of 5 based on 1 customer rating
(1 customer review )


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Rancilio Rocky Doser V3 Espresso Coffee Grinder

Best precision flat burr grinder for home use and for those who demand the best. The Rancilio Rocky Doser has been a long time “gold” standard for espresso coffee grinders. These grinders encompass the heavy motor that is found on the Rancilio MD40. The next step up from a Rancilio Rocky is therefore a commercial grade coffee grinder.


Grinding Adjustment

Stepped adjustments giving you a wide range of grinding from fine to coarse. Easier to go back and forth between different grind settings.

Quiet operation

Generally not higher than 70dB(A). Rubber vibration-dampening feet help keep grinder steady and reduces noise.

Tinted bean hopper & doser

The blue tint helps to avoid pre-mature deterioration of beans from light sources (such as sunlight).


All coffee grinds into this chamber and then dosed out as you need. There is an opening that allows you to pour in any extra unused coffee grinds. This helps reduce coffee waste.

Portafilter Fork

For easy espresso machine filter handle placement & dosing. Sits very low to the base. Some portafilter designs can even rest on your counter for “hands free” operation.

Instruction manual

Written in English, German, French, Spanish, Italian.

Additional information



Height (inches)

14, approximate

Width (inches)

5, approximate

Depth (inches)

10, approximate

Weight (pounds)


Wattage (watts)


Voltage (volts)

110 – 120

Burr size (mm), Type

50, flat

Grinding speed (RPM)


Hopper capacity (grams)


Doser/Container capacity (grams)



  1. Differences between V3 vs V2:
    • The Rocky V3 Grinder now has a removable plastic grind catch tray.
    • The Rocky V2 Grinder has the same stainless steel base as always. This is not removable.
    • The Rocky V3 has replaced the Rocky V2.
  2. Each Rancilio Rocky grinder is repackaged by 1st-line Equipment before shipping out to you.Unfortunately, the original internal cardboard packaging by Rancilio can not withstand the rigors of UPS/FedEx, and there were many damaged shipments due to the original packaging not being adequate enough.
  3. ALL Rancilio Rocky grinders are tested with coffee by Rancilio. You may find coffee grinds inside. They are also carefully inspected by 1st-line Equipment, LLC before shipment to you.
  4. The doserless chute cannot be purchased separately to add to this model.
  5. This grinder was designed in Italy to use smaller and less oily beans. You can use large and/or oily beans with machine by removing the finger guard. However you might have issues with large and/or oily beans not feeding into the grinders properly or the machine making a mess.
  6. There is no kit available to convert the doser model to a doserless model or vice versa.
  7. 1st-line Equipment, LLC is an authorized Rancilio repair center and we handle the warranty repair for Our customers’ Rancilio espresso machines! Our master technician alone has over 35 years in the coffee and espresso repair business! This is why so many customers choose 1st-line as their premier choice for Rancilio home products!
  8. The settings on all Rancilio grinders should only be adjusted while the grinder is powered on and running. If this is not performed, the burrs will get gunked up with grinds and the burrs will not be able to grind fine enough for you.
  9. With the doser, there is no way to fill each individual chamber evenly. Best recommendation is to grind only what you need and dose everything out.
  10. Please note that there are static issues with all grinders, even the highest quality models. We firmly believe that the static comes from the coffee beans. If you are having static problems with your coffee grinder, trying using a different blend of beans.
  11. How to find the relative zero or “true” point on the Rancilio Rocky (doser or doserless).
    1. Make sure there are no beans in the hopper.
    2. While the grinder is powered on and running, briefly rotate the bean hopper to to the lowest numbered setting where metal-to-metal is heard.
    3. Immediately back off to a higher setting. The point of metal-to-metal screeching becomes your relative zero point. Note that this point may be higher or lower than the numerical zero point on Rancilio Rocky grinders.
  12. Upgrading the V3 plastic base and removable tray on a V2: You will need to order these 2 parts: 38-123-677 and 38-123-678. there are 3 screws on the bottom to remove for replacement.
  13. Please note that the electrical cord is placed between the packaging (foam or cardboard) and the underside body of the grinder. During shipping, it is normal for a bend or insignificant blemish/slice to damage the cord.

Customer reviews

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1 review for Rancilio Rocky Doser V3 Espresso Coffee Grinder

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    1. 0 votes

      Sorry, without an evaluation, this is difficult to determine. It is best a professional evaluate the Rancilio Rocky coffee grinder. You can search our web site for the company closest to you or send it in to us.

    2. 0 votes

      Sorry, this was a limited production run. We will see if we can get more.

    3. 0 votes

      To avoid the risk of damage to the threads, we recommend a cleaner such as Urnex Grindz sold on our web site. We will have another product soon as well as a spray to clean the hopper from oil build up.

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