Geimori GU63 Coffee Grinder | Premium Espresso & Filter Grinder

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$249.99
$299.99
SAVE 17%
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A single-dose grinder for espresso and filter coffee — from precise espresso dialing to everyday pour-over.

Omni 63mm 8-core conical burrs

80 RPM slow-speed grinding

Stepless 0–85 adjustment

Plasma anti-static system

<0.1 g low retention with bellows

Global voltage compatibility

Supports 100–240V, 50/60Hz. A region-matched plug is included based on shipping destination.

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Estimated delivery by Sep 13 - Sep 17
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2-year warranty

30-day returns

Secure checkout

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Technical Specifications

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Model

Geimori GU63

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Electrical specifications

DC Adapter input: 100-240V~, 1.7A, 50/60Hz. 

Output: 24 V⎓, 3.0 A, 72.0 W

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Grind adjustment & scale

Stepless · marked scale from 0 through 85

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Burr size / type

63 mm 8-core conical burrs

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Material

Base: Die-cast aluminum with surface coating
Housing: CNC anodizing aluminum 
Burr: SUS420 stainless steel · HRC 58

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Burr life

800 kg

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Recommended duty cycle

90 seconds grinding · 90 seconds rest

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Adjustment reference

0.02 mm (20 μm) relative vertical burr shift per  increment

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Retention · 10 g dose

<0.1 g with bellows

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Grinding rate

Espresso: 0.6 g/s

Filter: 1.1 g/s

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Hopper capacity

60 g

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Dosing cup capacity

70 g

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Dosing cup

58 mm

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Motor

100W DC motor · 80 RPM

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Operating voltage

24 V DC

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Dimensions

155 × 98 × 305 mm

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Weight

3,068 g

Frequently Asked Questions

Why does the GU63 use a 80 RPM low-speed motor?

In coffee grinding, high speed creates friction and heat, which can destroy the delicate volatile oils and aromas of your coffee beans before they even reach your cup. We engineered the GU63 with a 80 RPM slow-grinding DC motor for three essential reasons:

  • Preserves Flavor (Cold Grind): It prevents heat buildup, ensuring your coffee's natural sweetness and complex aromatics are 100% locked in.
  • Higher Grind Uniformity: Slower burr rotation prevents the beans from shattering violently. This drastically reduces the creation of micro-fines, resulting in a cleaner, sweeter cup with higher flavor clarity.
  • Whisper-Quiet: Operating at a low speed reduces mechanical vibration, keeping the noise level below 65dB for a peaceful morning routine.

What plug does the power adapter come with?

The power adapter itself is universal and supports 100–240V AC, 50/60Hz, so it can be used in different countries and regions.

The plug head is replaceable, and we normally include the appropriate plug head based on the shipping destination. For example, U.S. orders usually include a U.S. plug head, while Australia orders usually include an AU plug head.

If you need a different or additional plug head, please contact us before shipping and we’ll help arrange it when possible.

For reference, you can view the power adapter and plug heads here.

What is the benefit of the 63mm conical burrs?

The 63mm CNC-machined high-carbon steel conical burrs are designed to reduce micro-fines and improve grind uniformity across all brewing methods, delivering a balanced cup with rich body.

Can the GU63 grind for both Espresso and Pour-Over?

Yes. With 85 stepless micro-adjustments, the GU63 offers precision to dial in everything from ultra-fine espresso to coarser grinds for pour-over and French press.

How can I contact the Geimori Team?

If you have any question, please email us at contact@mywirsh.com.

What Our Customers Are Saying

Geimori GU63 Coffee Grinder | Premium Espresso & Filter Grinder