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Rancilio Coffee Grinder, Semi-Automatic - 140 Watts

Item #: MD-40ST

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List Price: $1,600.00 Our Price: $900.00 Savings: $700.00
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Rancilio Coffee Grinder, MD-40ST

Rancilio Coffee Grinder, Semi-Automatic - 140 Watts

Rancilio Semi-Automatic Coffee Grinders

Rancilio Coffee Grinder, 140 Watts 
This unparalleled compact semi-automatic Rancilio Coffee Grinder is exceptionally well made and features the fundamental mechanisms that are most important to coffee grinders. This one pound coffee grinder features a powerful 140 watt motor that can handle the high pressure of grinding fine espresso with ease. This Burr Coffee Grinder features 50 mm flat-wheel grinding burrs that consistently grinds between 5.5 -7.7 lbs per hour. This commercial Rancilio Coffee Grinder is ideal for smaller coffee bars and for the homes of coffee and espresso connoisseurs. Featuring stainless steel and die-cast aluminum construction, this sleek Rancilio Coffee Grinder is durable and appealing. This Dosing Rancilio Coffee Grinder features stepless grind adjustment which exhibits an extraordinarily fine tuni

Rancilio Coffee Grinder, 50 mm Burrs Features:

  • Model: MD-40ST
  • Dimensions (W x D x H): 5.5 x 13.1 x 17.3 inches
  • Power: 140 W
  • Voltage: 230 V - 50/60 Hz
  • Weight: 19.8 lbs
  • Production: 5.5 - 7.7 lbs/hr
  • Version: Semi-Automatic
  • Hopper Capacity: 1.1 lbs. bean
  • Burrs: 50mm (1.9") flat-wheel grinding burrs
  • Construction: Stainless steel and die-cast aluminum

....A little more about the features:

Semi-automatic grinder
This Rancilio Coffee Grinder is semi-automatic. This means that you have to press the button to turn the machine on and you have to push it again to turn it off. This feature provides the operator ultimate control of how much coffee is ground, allowing for freshness to be preserved rather than grinding too much coffee and letting it go stale. The grinding switch is sealed to prevent coffee grounds from messing up the grinding mechanism.

Espresso Dosing System
The MD40 Rancilio Coffee Grinder is a doser espresso grinder which means that it grinds into a chamber which dispenses the coffee in uniform amounts. Just pull the lever on the doser to dispense between 5-10 grams of ground coffee/espresso. The Rancilio artisans manufacture all of their dosers to be exceptionally resilient and durable, with many metal parts where other companies use plastic. Using the MD40 this way works best when the doser chamber is at least half full. Some baristas grind only what they need on a per-shot basis and use the doser’s flapping action to get the grounds out in the proper dosage.

Heavy Duty Motor
The Rancilio MD40 Coffee Grinder features a precisely-powerful 140-watt motor that runs quietly. Grinding espresso so finely puts a lot of tension on the any coffee grinder, but this 140-watt Rancilio Coffee Grinder can handle the job with ease. The 140-watt motor weighs 12 lbs. alone and features 1,725 RPM. This Burr Coffee Grinder features a high-temperature overload switch to keep the machine safe if a stone gets caught in the burrs.

High Capacity Use
Other compact commercial burr coffee grinders don’t measure up in comparison to this Rancilio Coffee Grinder; This grinder can handle a shockingly large amount of work. To keep UV rays from damaging your beans, the hopper is blue-tinted. Holding 17.5 ounces of beans, and producing up to 7.7 pounds of ground espresso per hour, this Rancilio Coffee Grinder can produce enough coffee for a low to medium traffic coffee shop. The bean hopper connects directly to the body of the Rancilio Burr Coffee Grinder preventing accidental damage. The bean hopper features a metal slide plate to prevent the beans falling out of the bottom during cleaning.


High Quality Grinding Burrs
Precisely balanced 50 mm grinding burrs press out a consistently fine to extra fine grind every time. This consistency requires very well made grinder burrs; this Rancilio MD40 utilizes forged steel medium duty flat burrs that resist wear and corrosion.

Warranty and Support
The Rancilio Coffee Grinder MD 40 is warranted against defects in parts and workmanship for 1 year. Any damage resulting from misuse or mishandling will not be covered.

Confused about which model to get? Below is a comparison chart that simplifies the features of the MD models:






W x D x H (in)

   7.8 x 15.3 x 24.1   

    6.1 x 14.1 x 20.6    

    6.1 x 14.1 x 20.6   

    5.5 x 13.1 x 17.3   

Burrs (mm)










Power (Watts)










Recommended Usage  




Commercial or Home

Price ($)








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Additional Information
Name Rancilio Coffee Grinder, Semi-Automatic - 140 Watts
Type Burr Grinders
Material Plastic and Steel
Color Silver
Brands Rancilio
Home or Commercial Commercial
Manufacturer's Warranty 1 Year Limited Manufacturer Warranty
Wattage Range 100 - 249
Weight (in Lbs) 19.8000