Quamar : M80E

The
Quamar M80E
is a professional, on-demand espresso grinder made in Italy, designed for small to medium-sized cafés, offices, or dedicated home baristas. It is recognized for its durability, consistent grind quality, and user-friendly electronic controls. 
 
Key Features and Specifications
Grinding Burrs: Features 63 mm flat burrs made of hardened stainless steel (18NiCrMo5) for uniform and consistent espresso grounds.
Dosing System: An electronic on-demand system that allows users to program three different shot quantities (single, double, or triple) with accuracy up to 0.05 seconds. It also includes a manual grind button.
Daily Capacity: Recommended for grinding up to 3.5 kg of coffee per day, making it suitable for commercial use.
Grind Adjustment: Uses a stepped grind collar with "mini-steps" offering precise adjustments to fine-tune the grind size.
Build Quality: The grinder has a durable, heavy-duty aluminum body, contributing to its stability and longevity.
User Interface: An intuitive touch-sensitive keypad and digital display.
Hopper Capacity: Comes standard with a 1.2 kg bean hopper, with smaller capacity options available.
Motor Speed: The burrs rotate at 1,400 RPM (at 50 Hz) or 1,600 RPM (at 60 Hz).
Dimensions: 160 mm (W) x 290 mm (D) x 510 mm (H). 
 
Reviews and Usability
Reviews generally praise theM80E
for its robust, commercial build and performance. Baristas appreciate the hands-free portafilter holder and the efficiency of the programmable dosing system. 
Pros: Highly durable, produces a consistent grind, fast operation, and relatively quiet for a commercial grinder.
Cons: Due to having some "dead space" (retained grounds), it is best suited for cafes where it is used frequently throughout the day. For very low-volume home use (e.g., one espresso a day), it may require single-dosing techniques to ensure maximum freshness