EXPERIENCE PRECISION GRINDING LIKE NEVER BEFORE The VS4 redefines your coffee ritual through the perfect balance of design precision and mechanical excellence. Powered by a 200 W brushless motor with a planetary gearbox and variable RPM control (150–300 RPM), it delivers uncompromising consistency, torque, and control. At its core, a 53 mm 6-core conical burr set ensures exceptional uniformity and clarity in every grind — from espresso to cold brew, maintaining remarkable consistency throughout the grind range. SUPERIOR BURR DESIGN Precision-engineered 53 mm 6-core conical burrs deliver optimal particle-size distribution and refined flavor clarity across all brew methods. The geometry and alignment are optimized for balanced extraction and clean flavor definition. POWERFUL & EFFICIENT Driven by a 200 W brushless motor paired with a planetary gearbox, the VS4 maintains stable torque and smooth performance across variable speeds (150–300 RPM), offering fine-tuned control for every grind profile. LOW RETENTION DESIGN A patented single-piece removable burr chamber with a quick-connection bayonet system ensures low retention and effortless maintenance. The design minimizes grind waste and allows fast, tool-free disassembly while maintaining perfect alignment. ROBUST HOPPER ADJUSTMENT A stepless 10-micron adjustment system provides ultra-fine control from espresso to cold brew, maintaining high consistency throughout the grind range. An independent internal adjustment thread eliminates hopper drift, cross-threading, and wear — ensuring smooth, repeatable, and precise calibration every time. ACTIVE IONISATION TECHNOLOGY Integrated active ionisation neutralizes static and preserves coffee aromatics, delivering a cleaner, more uniform grind with reduced clumping. ELECTRICAL SPECIFICATIONS: Power Supply: AC 100-120V or 220-240 V, 50/60 Hz. Motor: 200 W Brushless DC motor (high-torque, low noise design) Motor Speed: Variable, 150–300 RPM (user adjustable) Torque: 14.5 N·m at the burr (with planetary gearbox reduction) Gearbox: Planetary gear transmission, metal gears (provides ~10:1 reduction for torque multiplication and consistent speed under load) Thermal Protection: Internal temperature sensor with logic control – the grinder monitors motor/driver temperature and may pause operation to prevent overheating. GRINDING SPECIFICATIONS: Burr Type & Size: 53 mm conical burr set, stainless steel (heptagonal or multi-angle conical design for espresso & filter versatility). Factory burr is high-hardness tool steel (HRC ~58, high-nitrogen stainless). Burr RPM: 150–300 RPM (user controlled, low RPM grinding minimizes heat and static). Grind Adjustment: Stepless internal adjustment collar, finer = clockwise, coarser = anticlockwise. Grind Scale: Marked scale from finest to coarsest. Factory calibration at “0” = burr touch point (do not grind at 0). Adjustment resolution ~0.01 mm per division (10 microns per indicated step). This allows for extremely fine adjustments. Grind Range: Capable of grinding from Turkish/espresso fine (approx. 100–200 microns particle size) up to coarse French Press grind (1000+ microns). The total range is roughly 2.5 revolutions of the adjustment collar from zero to fully open (range may be indicated as 0–10 on the dial). Recommended Use: Suitable for espresso, moka pot, pour-over, drip coffee, AeroPress, French press, and cold brew. (Note: very fine powdery Turkish grind is near the limit of adjustment but can be achieved by calibrating slightly past zero – caution is advised to avoid burr contact.) CAPACITY & THROUGHPUT: Hopper Capacity: 30~40 g of beans (designed for single dosing; use bellows to clear after each dose). Grounds Bin Capacity: ~40 g (the included dosing cup can hold about 40 grams of ground coffee). Grinding Speed: Approx. 1.5–2.0 g/second at medium grind setting and full motor speed. Espresso grind speed ~1 g/second (will vary with bean and setting). The planetary gearbox ensures consistent speed even under load of dense beans at fine grind. Retention:
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