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Industrial roasters

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
w30 coffee roaster giesen full plant
Giesen W6 series.

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.

W6seriesRender
From ignition to cooling.

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.

Giesen W30A Pro roaster
More batches. less hands-on 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.

Side view of a W30A Pro roaster with GCC and external cyclone
General specifications

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

Ranges

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)

Certifications

Standard certifications
CE marked

Optional certifications
UL 
AGA 

Optional additions

Giesen Profiler

Destoner

Coffee Conveyor

Catalytic Emission Cleaner

Electrical specifications

Supply voltage
400V AC 

External fusing
3 x 25A

Maximum electrical power
5,1 kW

Gas specifications

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

The serious stuff.

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!

Temperature control

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.

Airflow control

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.

Drumspeed control Giesen roasters feature adjustable drum speed control, empowering you to perfect your roasting process. By modifying the drum's revolutions per minute (RPM), you can balance conductive and convective heat transfer, ensuring uniform bean development.
General specifications

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)

Electrical specifications

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.

Ranges

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