Overview

The Santos Silent Espresso Coffee Grinder 40A is widely regarded as one of the quietest espresso grinders on the professional market. Built in France by Santos — a specialist in silent grinding technology since the 1950s — the 40A has earned its place behind the bars of espresso-focused venues around the world, from intimate specialty coffee shops to hotel restaurant services and high-volume cafés.

What sets the 40A apart is its combination of silent asynchronous motor technology and a precise volumetric dispenser that maintains a constant, accurate dose for every single espresso — whether the grinder is cold first thing in the morning or warm during the lunchtime rush. The result is a grinder that is simultaneously unobtrusive and extraordinarily reliable.

Key Features

Most Silent Espresso Grinder on the Market (63 dB): Santos engineered the 40A with a powerful asynchronous motor and advanced sound-dampening housing to achieve one of the lowest noise ratings of any commercial espresso grinder — three times quieter than a conventional mill.

Constant Precision Dosing (6.5g–9g): The precise volumetric dispenser holds a measured dose and releases it on demand. Dose size is easily adjusted between 6.5g and 9g to suit your preferred recipe — single espresso, ristretto, or lungo-ready.

Automatic Dispenser Refill: The motor starts and stops automatically to keep the portion dispenser full at all times — every 3–5 doses. No waiting, no manual intervention — just consistent extraction, service after service.

Santos Precision Burrs (Ø 2.5"): Santos designs and manufactures its own grinding discs in-house for precise, fine, and consistent grinding. The result is a unimodal grind distribution that extracts evenly — giving you full control over your espresso flavour profile.

No Burn Coffee Effect: The low-RPM motor generates significantly less heat than high-speed grinders, protecting the delicate volatile aromatics of your coffee beans from heat degradation during grinding.

Large 4.9 lbs Bean Hopper: Holds nearly five pounds of coffee beans — significantly reducing the need for mid-service refills even in busy environments.

Compact Counter Footprint: Designed to sit alongside 1, 2, or 3-group espresso machines without dominating the bar workspace.

Easy Maintenance: Changing the grinding discs is simple and tool-friendly — minimising downtime when maintenance is needed.

Technical Specifications

Grinding Disc Diameter: Ø 2.5" (Santos in-house manufactured)

Hopper Capacity: 4.8 lbs

Dose Adjustment Range: 6.5g to 9g per portion

Average Output: Approx. 18 lbs/hour

Noise Level: 63 dB (per EN 31201 standard)

Motor: Single phase asynchronous — 220–240V / 50-60Hz / 360W

Motor Speed: 1500 rpm (50 Hz) / 1700 rpm (60 Hz)

Dimensions: H 22.83" × W 7.48" × D 15.35"

Weight: Approx. 31 lbs

Construction: Cast aluminium body

Certifications: CE, NSF, RoHS

Country of Origin: France

Ideal For

The Santos 40A is the professional standard for espresso-focused cafés, specialty coffee bars, boutique hotels, and fine dining restaurants that prioritise dosing accuracy and acoustic comfort in equal measure. The low 63 dB noise level makes it completely unobtrusive in customer-facing environments, while the automatic volumetric dispenser means every shot is pulled from a consistently measured dose — regardless of who's behind the bar.

It is also a popular choice as a dedicated decaf or specialty-blend grinder in venues that run multiple grinders simultaneously, where maintaining consistency across all outputs is critical.

Warranty & Support

Product Warranty: 2 years

Motor Warranty: 5 years

Santos has been manufacturing professional catering equipment in France since 1953. As a Longtime Label certified brand, they are independently certified for the robustness and durability of their appliances — with a guaranteed minimum of 10 years of spare parts availability after manufacture. Changing grinding discs is intentionally simple, ensuring this machine can serve your business for many years with minimal maintenance effort.