Compare Grinders


	Kingrinder	Rancilio
MSRP
MSRP	$119	$440
Skill Level
Skill Level	Beginner	Beginner
Type
Type	Manual	Electric
Activation
Activation	Hand Crank	Rocker Switch
Grind Method
Grind Method	Conical Burr	Flat Burr
Burr Diameter
Burr Diameter	48 mm	50 mm
Adjustment
Adjustment	Stepped	Stepped
Adjustment Scale
Adjustment Scale	16 micron	10+ micron
Dosing Method
Dosing Method	Manual	Manual Switch
Dosing Type
Dosing Type	Single Dose	Hopper
Retention
Retention	< .2 g	1 - 1.5 g
Grind Range
Grind Range	Espresso	Espresso
Time to Grind (18g)
Time to Grind (18g)	60	30
Motor RPM
Motor RPM	rpm	1350 rpm
Swappable Burrset
Swappable Burrset	No	No
Adjustable RPM
Adjustable RPM	No	No
Weight
Weight	0.7 kg	7 kg
Material
Material	Aluminum	Plastic
Dosing Cup
Dosing Cup	Threaded Catch Cup	No Information

EspressoBot Comparison

Machine Overview

The Kingrinder K4 is priced at $119 and is categorized as a manual grinder suitable for beginners. In contrast, the Rancilio Rocky SD is more expensive at $440 and is a semi-automatic grinder, also aimed at beginners. Both grinders are designed for those who are new to espresso preparation, but the price difference reflects their respective features and functionalities.

Brewing Comparison

In terms of grinding information, the Kingrinder K4 utilizes a conical burr with a diameter of 48mm made from titanium-coated material, offering a stepped adjustment for grind coarseness that ranges specifically for espresso. It features a single dose hopper with manual dosing and has low retention of less than 0.2 grams. The Rancilio Rocky SD, on the other hand, employs a flat steel burr measuring 50mm in diameter, also with a stepped adjustment for espresso grinding. Its hopper allows for greater batch grinding, using a rocker switch for manual dosing, with a retention of 1 to 1.5 grams.

Features Comparison

Regarding key features, the Kingrinder K4 has no adjustable RPM and is specifically designed for espresso grinding, with a grind speed of 60 seconds for 18 grams. Conversely, the Rancilio Rocky SD operates at a fixed RPM of 1350, providing a quicker grinding speed for 18 grams in just 30 seconds. Neither grinder has swappable burrs, making them fixed in terms of their grinding capabilities. The adjustments between the two highlight the differences in grinding speed and methodology—manual versus semi-automatic.

Note: Espresso Setup Chris is expirementing with generated summaries for dynamic pages (we have 10,000+ so I can't write for all of them!) If you found this useful, or awful, please shoot me an email with feedback Chris@EspressoSetupBuilder.com. May your shots be perfectly extracted and milk frothy.

Want another coffee?

Take the Quiz

Start Now

For Personalized Recommendations

Discover Machines

Including Breville, Profitec, & Lelit

Discover Grinders

Including Eureka, Baratza, & Niche