W30A Pro
The Giesen W30A Pro takes everything trusted about the original W30A—build quality, capacity, control—and elevates it with full automation. Designed for roasteries that prioritize consistency, efficiency, and scale, the W30A Pro handles the entire roast cycle from start to finish with minimal operator input.
- Up to 30 kg per batch | 150 kg per hour
- Robust and reliable construction
- Fully customizable

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.

100% automation
Unlike the standard W30A, the W30A Pro automates every stage of the roast process, including green bean loading, roasting, cooling, and discharge. Just select a saved profile and press start—and Giesen Profiler care of the rest. This eliminates variability, reduces labor, and ensures perfect reproducibility every time.

Designed for continuous production
The W30A Pro is built for uninterrupted roasting. It allows for back-to-back roasts without manual resets. Operators can oversee production, not manage it—making the Pro ideal for scaling output while maintaining quality control.

Measurements
4147 x 1272 x 2518 mm
Weight
On request
Minimum batch size
15 kg
Maximum batch size
30 kg
Sound level
70 dB (A)
Chimney diameter
Ø 200 mm 2x
Underpressure range
100 - 170 Pa
(130 Pa default)
Drum speed range
37 - 52 Hz
(47 Hz default)
Temperature setpoint range
100 - 250 °C
(200 °C default)
Standard certifications
CE marked
Optional certifications
UL
AGA
Giesen Profiler
Destoner
Coffee Conveyor
Catalytic Emission Cleaner
Supply voltage
400V AC
External fusing
3 x 25A
Maximum electrical power
5,1 kW
Gas connection
G 1/2"
Maximum gas consumption
G20 - 6,9 m³/h
G25 / G25.3 - 6,2 m³/h
G30 - 2,4 m³/h
G31 - 1,7 m³/h
Gas inlet pressure
G20 - 25 mbar
G25 / G25.3 - 20 mbar
G30 - 30 / 37 / 50 mbar
G31 - 30 / 29 / 50 mbar
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