For decades, choosing a coffee grinder often meant choosing a “side”, and accepting a compromise: one burr set may emphasize clarity and separation, while another may bring more texture and body.
GDS was designed to make that choice less fixed, and less intimidating.
The GDS platform houses both geometries in a unified chassis, allowing different expressions of the same coffee to be explored within one system.
HYBRID SETUP :ย
100mm Conical + 102mm Flat.
The all-rounder setup for the coffee enthusiast or for those building their own “coffee laboratory” – at home or in a cafe. Maintain the ability to pull richer, syrupy, traditional profiles on the left, while pushing modern light roasts to their extraction potential on the right.
TWIN SETUP :
Mizen 102OM (Flat) + SSP 102HU (Flat)
For the particle distribution geek, or for the flat-burr believer. Run two identical geometries to isolate variables like RPM, or install two different flat burr designs for direct side-by-side comparisons.
New Mizen HC100TX with PCS Technology
This section explains the design approach behind our new conical burr system. The interactive tool helps illustrate how the Preliminary Crushing System reshapes the grinding dynamics of conical burrs, influencing grind behavior and improving grinding consistency compared to conventional designs.
In the GDS conical system, PCS uses a stepped design to reduce this bean-column effect. By controlling how beans enter the burrs, PCS helps stabilize feed rate, reduce crowding, and improve intra-dose consistency.
Load Stability
GDS introduces a secondary thrust ball bearing system, providing dedicated support for axial forces generated during grinding and improving overall stability of the grinding assembly under load. Together with the 1650W BLDC motor and closed-loop control, this helps maintain alignment and stable RPM as bean resistance changes.
From dense Nordic light roasts to continuous duty in a commercial setting, the drive system is designed to reduce motor stutter as beans enter the chamber – helping preserve consistent fracture dynamics and grind uniformity.
Geometry-Turned Belt Drive
GDS uses a belt-drive system to transfer and tune power delivery from a single motor, allowing each geometry to operate within its intended RPM range. Conicals run lower, matched to their throughput, flow path, and fracture dynamics. Flats run higher, using rotational momentum to reduce crowding and maintain grind uniformity.
Internal Alignmentย
The structure is further optimized with post-anodization machining to reduce tolerance stack-up, minimizing accumulated deviation across the assembly and preserving alignment at the burr interface.
The integrated upper burr assembly allows repeatable removal and installation without recalibration, helping maintain consistency through servicing and cleaning.
Full Control. Calibrated Precision.
GDS keeps the main variables in the operator’s hand. Speed and grind position can be adjusted directly across burr geometry, coffee, and brewing style, while grind settings are expressed in microns for continuous, multi-revolution adjustment.
Purge on Demand.
A dedicated purge control keeps grind transitions fast and intentional, supporting calibration and retention management during routine workflow.
Static Control.
A dedicated static-neutralizer (ionizer) switch gives the operator control over static management and grind presentation, helping shape the final cup experience.
GDS uses a fully magnetic mounting platform to keep the front setup adaptable.
Quickly swap between adjustable portafilter support and height-variable cup staging without tools, whether grinding directly into a basket, dosing cup, blind shaker, or another preparation accessory. The system is designed to stay open as workflows evolve – giving the operator freedom to adjust the setup, instead of working around the machine.
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