The drum roasting process in detail
The heart of LEOGAP’s Probatone 60 drum roaster is a horizontally lying roasting drum that is equipped with a rotary drive. Shovel blades circulate the coffee beans during the roasting process. The flame of a burner generates the energy for the roasting air which is guided both through as well as around the roasting drum by means of flaps. As such, heat is applied through conduction via the bean’s contact with the roasting drum as well as through convection via the hot incoming air.
Performance Data
Roasting times (min)
Roasting capacity (kg/h)
Batch size (kg)Roasting times (min)Roasting capacity (kg/h)Batch size (kg)
ControlThe Probatone 60 has an Allen Bradley programmable logic controller with a local interface for operation next to the roaster. It is possible to make changes to the recipes and to the operation.
- It has a computer with Factory Talk View supervisory which can be installed up to 100 meters away
- It has command screens that allow observing of the entire operation
- It comes with a nobreak system that allows viewing the process for 30 minutes in the event of any power failure
Environment and Cost-EffectivenessDifferent LEOGAP systems make it possible to clean the thermal energy released during the roasting process. They are specifically tailored to the respective roasting process.
- Reduction of visible roasting exhaust
- Reduction of emissions and adherence to local thresholds through modular exhaust air treatment systems
- Minimal heat loss due to a particularly well-insulated roasting system
SafetyLEOGAP safety technology goes far beyond standardized requirements. We offer safety components that guarantee maximum process security.
- Ensuring the functional safety of your processing systems
- Maintenance-friendly safety components
- Water buffer increase operational safety
