ECM C-Manuale 54 Espresso Grinder (Used Like New). The C-Manuale 54 from ECM is one of the most powerful grinders on the market for its price-point, featuring a set of 54mm stainless steel burrs and a powerful 235 watt motor to put it ahead of the competition. 54mm Flat Steel Burrs. Type of Controls: Rocker Switch. Grinder Features: Easy Access to Burrs. Grinder Setting Controls / Adjustment Type Stepped. Burr Diameter (mm) 54. Grinder Burr Type Stainless Steel. Bean Hopper Freshness Lid No. Separate Ground Coffee Container No. Recommended Grind Selection Espresso. Bean Hopper Capacity (Oz) 8.8 oz. Removable Bean Hopper Yes. Grinding Method Flat Burr. Bean Hopper Material Plastic. Housing Color Stainless Steel. Housing Material Stainless Steel. Foot/Leg Height (inches) 0.5 in. Depth (Inches) 6.9. Weight (Lbs) 11.3. Width (Inches) 4.5.