W30A
The Giesen W30A is a high-performance drum roaster built for industrial-scale coffee production. With up to 30 kg per batch and full control over roast variables, it delivers consistency, efficiency, and precision for large operations.
- 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.

Large capacity, full control
The W30A offers full control over airflow, drum speed, and heat input—ensuring high-volume roasting with craft-level precision. Built-in profiling tools and software integration make consistent results repeatable at scale.

Automate with accuracy
With automation support and real-time sensor feedback, the W30A allows you to run detailed roast profiles with minimal intervention. Designed for high reliability and consistent output, even across long production runs.

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