SATURN
CENTRIFUGAL ROASTER

The unique solution

PROBAT is the world's only supplier of patented centrifugal roasting technology where the beans aren’t mechanically moved. The rotating roasting bowl creates a centrifugal force moving the beans upwards in the dish and positioning them into the main hot air stream. The roasted goods are well blended in a gentle and uniform manner thanks to the vertical rotational movement combined with an outer lamellar ring.

SATURN achieves unique roasting results in the middle roasting time range. On the one hand, it offers a number of ways to influence the flavor, density and degree of extraction from the roasted coffee. On the other hand the thermal equilibrium which is reached quickly ensures that the bean-roasting process proceeds extremely gently.

The SATURN roaster minimizes heat losses, saves a great degree of energy and is friendly to the environment while also automatically regulating the cooling time. The air volume can be reduced to a minimum, while the integrated roasting air circulation ensures an optimum balance of energy. The compact system also provides another advantage: small spatial requirement.

THE CENTRIFUGAL ROASTING PROCESS

The distinguishing characteristic of the PROBAT SATURN centrifugal roaster is the rotation of the roasting bowl which is equipped with a lamellar ring around the vertical axis. In this manner, the green coffee is mixed gently during the roasting process. Hot air is guided into the roaster through the center of the bowl, and as a result, the heat is transferred evenly and the beans are roasted homogeneously. The result is a particularly uniform bean appearance. In this context, the quantity of air needed for the roasting process can be reduced to an absolute minimum. The addition of water systematically ends the roasting process while simultaneously precooling the roasted coffee.

SATURN ROASTER WITH RECIRCULATION AND OPTIONAL EXHAUST AIR TREATMENT

Benefits for your coffee

SATURN centrifugal roasters show their strengths in the medium roasting range between 5 and 10 minutes. The flexibility to change various key parameters makes it possible to fine-tune the aroma, density, and the extraction level of the roasted coffee.

SATURN centrifugal roasters offer these and many other benefits:

The unique design of the roaster allows maximum flexibility in terms of green coffees to be processed as well as roast profile development
Safe production from light to extremely dark roast colors
Uniform bean appearance and homogeneous roast
Gentle product handling during the roasting process
Consistently reproducible coffee quality
Maximum range of density and volume for the produced roasted coffee
Rapid and flavor-preserving cooling

Versions

SATURN TYP 1

Roasting times (min)

1.5–12

Roasting capacity (kg/h)

2,500-4,000

Batch size (kg)

210-550

SATURN TYP 2

Roasting times (min)

5–15

Roasting capacity (kg/h)

300-4,000

Batch size (kg)

30-640

Best Life-cycle Costs and Performance

CONTROL

All SATURN centrifugal roasters are equipped with the PILOT Roaster Excellence control system. In this context, high-quality hardware and software guarantee maximum production reliability. Customers can choose between various PLC-solutions and visualization concepts according to their individual demands.

Fully automated PC-based control system
Clear visualization and simple operation
Recipe management with up to 999 user-definable recipes. Settings that have been saved are reproduced safely and automatically.
Reflex Automatic function (optional): reproducibility of roasting profiles by eliminating external influences such as varying batch sizes, green coffee moisture or ambient temperature
Overview of all key roasting parameters and temperature curve
All data relevant to production is saved, allowing it to be accessed and analyzed at any time
Transparent presentation of the system’s operating status in real time
Can be operated directly at the roaster or centrally from a control room

ENVIRONMENT AND COST-EFFECTIVENESS

Different PROBAT systems make it possible to clean and reuse the thermal energy released during the roasting process. They are specifically tailored to the respective roasting process.

Energy savings through recirculation of roasting exhaust air
Energy savings and increased production through green-coffee preheating
Reduction of product-specific odors and visible roasting exhaust
Reduction of emissions and adherence to local thresholds through modular exhaust air treatment systems
Maximum cleaning efficiency thanks to the Proforte exhaust air treatment system (flameless, renewable, thermal oxidation)
Energy monitoring for cost transparency
Heat recovery through the use of heat exchangers
Minimal heat loss due to particularly well-insulated roasting system
Thermal cleaning cuts human resource costs and saves time