Giesen 6
What began as the trusted W6A has now evolved into the Giesen 6: reimagined, modular, cloud-connected, and built for the future.
- The classic Giesen look, rebuilt from the inside out
- Modular architecture that supports future upgrades
- AI-assisted roasting

Up to 24 kg / h.
With a 6-kilo capacity per batch and up to 24 kilos per hour, Giesen W6 series roasters deliver efficiency and consistency. Perfectly balanced for professionals who demand both quality and volume.
The ultimate centerpiece for your coffee shop. Designed to perfection, it offers the flexibility of full-control manual roasting alongside the convenience of fully automatic roasting. Handcrafted in the Netherlands and shipped worldwide.

Compact and future-ready
The Giesen 6 combines the heart of a traditional Giesen roaster with next-generation technology. Its modular, integrated design offers unmatched control in a smaller footprint—perfect for roasteries that want to grow without compromise.

Ultimate roasting intelligence
Experience full digital control through tablet and cloud integration. With AI-powered features like Bean Prediction and roast-on-bean-temperature control, the Giesen 6 adapts to your craft and makes precision roasting simpler than ever.

Measurements
1589 x 761 x 1949 mm
Weight
485 kg (roaster only)
Minimum batch size
3 kg
Maximum batch size
6 kg
Sound level
70 dB (A)
Chimney diameter
Ø 150 mm
Underpressure range
80 - 150 Pa
(110 Pa default)
Drum speed range
36 - 51 Hz
(46 Hz default)
Temperature setpoint range
100 - 250 °C
(200 °C default)
Standard certifications
CE
Optional certifications
UL
AGA
Gas heating specifications
Supply voltage - 230V AC
External fusing - 1 x 16A
Maximum electrical power - 1,7 kW
Electric heating specifications
Supply voltage - 400V AC
External fusing - 3 x 32A
Maximum electrical power - 17 kW
Gas connection
G 3/8"
Maximum gas consumption
G20 - 1,8 m³/h
G25 / G25.3 - 2,1 m³/h
G30 - 0.7 m³/h
G31 - 0.5 m³/h
Gas inlet pressure
G20 - 25 mbar
G25 / G25.3 - 20 mbar
G30 - 30 / 37 / 50 mbar
G31 - 30 / 29 / 50 mbar
Destoner
Coffee Conveyor
SFE filter
Catalytic Emission Cleaner
Technical data.
If you need any further technical information that you can't find on this page, please contact us. We will be happy to help you!
Giesen roasters combine advanced temperature control with cutting-edge automation, ensuring consistency and ease in every roast. With features like automatic mode and burner percentage control, you have the tools to master your craft and achieve unparalleled results.
Giesen roasters feature advanced airflow control, allowing you to fine-tune the roasting environment to achieve your desired flavor profiles. By adjusting the underpressure settings, you can influence the heat transfer and development of your beans.
Measurements
W6A - 1427 (L) x 723 (W) x 1705 (H)
W6E - 1410 (L) x 723 (W) x 1705 (H)
W6A Pro - 1623 (L) x 2414 (W) x 1944 (H)
Weights
W6A - 485 kg (roaster only)
W6E - 496 kg (roaster only)
W6A Pro - 600 kg (roaster only)
Minimum batch size
W6A - 3 kg
W6E - 3 kg
W6A Pro - 3,5 kg
Maximum batch size
W6A - 6 kg
W6E - 6 kg
W6A Pro - 7 kg
Sound level
W6A - 70 dB (A)
W6E - 70 dB (A)
W6A Pro - 70 dB (A)
Supply voltage
W6A - 230V AC (1L+N+PE)
W6E - 400 V AC (3L+N+PE)
W6A Pro - 230V AC (1L+N+PE)
External fusing
W6A - 1 x 16A
W6E - 3 x 32A
W6A Pro - 1 x 16A
Max. electrical power
W6A - 1,7 kW
W6E - 17 kW
W6A Pro - 2,5 kW
Keep in mind that this is the absolute maximum power consumption. Actual average usage will be much lower.
Underpressure range
80 - 150 Pa (min. - max.)
Default value: 110 Pa
Drum speed range
36 - 51 Hz (min. - max.)
Default value: 46 Hz
Temperature setpoint range
100 - 250 °C (min. - max.)
Default value: 200 °C