The Nuova Simonelli MDJ On Demand Digit is a high-capacity commercial espresso grinder for medium- to high-volume coffee bars. Its 75mm stainless-steel burrs, 575-watt motor, touchscreen controls, programmable doses, large hopper, and sound insulation are designed to keep a primary espresso station moving during busy service. Best fit: cafés, drive-throughs, bakeries, and restaurants that need faster on-demand dosing than a smaller 64mm or 65mm grinder can comfortably provide. It is a hopper-fed commercial grinder rather than a single-dose grinder. Features that matter during a café rush 75mm stainless-steel burrs: provide commercial grinding capacity and quick dose delivery. 575-watt motor: supports sustained service at a primary espresso station. Two programmable doses: store common basket recipes while retaining manual control for dial-in. Touchscreen interface: gives baristas direct access to dose programming and operating information. Micrometric adjustment: supports fine grind corrections as coffee and bar conditions change. Sound insulation: reduces the disruption of grinding in customer-facing spaces. Portafilter lock: holds the portafilter during grinding so the barista can continue another task. 1.6 kg hopper: limits refills during busy periods. MDJ specifications Width 8.5 inches Depth 11.5 inches Height 24 inches Voltage 110V Power 575W Current 5A Burrs 75mm stainless steel Adjustment Micrometric Programmable doses Two Hopper capacity 1.6 kg Sound insulation Included Portafilter lock Included Is the MDJ the right size for your shop? Size a grinder around the busiest part of the day. A shop producing 150 drinks over ten hours has a different requirement from one producing most of those drinks in a 60-minute morning rush. Consider peak orders, espresso dose, number of group heads, number of baristas, roast level, and whether the grinder will serve every espresso beverage or only one menu item. The MDJ makes sense as a primary grinder when fast dose delivery and a large hopper are priorities. A smaller MDXS may be adequate for moderate demand or secondary espresso. A gravimetric grinder may be preferable when verified grind-by-weight dosing and connected automation are more important than conventional timed dosing. Dial-in and maintenance workflow Program doses by weight, not only by time: grind several doses, weigh them, average the results, and adjust the timer. Recheck after changing grind size or adding a new coffee. Purge enough grounds for the new setting to reach the basket, but avoid excessive purging that creates unnecessary waste. Clean the hopper, chute, and burr chamber on a documented schedule and replace burrs based on condition, throughput, and manufacturer guidance. Most commercial bars also need a second grinder for decaf or another espresso. Compare our commercial coffee grinders and browse all Nuova Simonelli equipment. About Nuova SimonelliNuova Simonelli develops espresso machines and grinders for working hospitality environments. The MDJ sits above smaller mid-volume grinder platforms, emphasizing burr capacity, dose speed, and a quieter customer-facing bar.Official downloads Review the official MDJ On Demand Digit overview. The manufacturer also provides the brochure, manual, spec sheet, and parts book in the Nuova Simonelli document archive. Frequently asked questions Is the MDJ a grind-by-weight grinder?No. It uses programmable time-based doses. Verify actual dose weight with a scale during setup and routine dial-in. How many doses can be programmed?The MDJ provides two programmable dose settings plus normal controls for operation and adjustment. Is the MDJ suitable for decaf?It can grind decaf, but its capacity is usually better utilized as a primary grinder. Low-volume decaf may be better served by a smaller grinder. Does a large hopper improve freshness?It reduces refilling, but beans should still be loaded according to expected service rather than left in the hopper longer than necessary. Need help matching grinder capacity to your espresso machine? Call (815) 954-4086.
