Probat G120/1 Industrial Coffee Roaster Specs and Features

If you’re running a high-volume coffee roastery and need reliable, high-capacity equipment that maintains control over roast profiles, you’ve likely come across the Probat G120/1. But what makes this machine tick? How much can it actually roast, how fast, and what systems are built in to handle that volume safely and consistently?

The Probat G120/1 is an industrial coffee roaster capable of roasting 120kg per batch, with an hourly output of around 480kg. Typical roast times range between 8 to 20 minutes, though this can vary depending on batch size, which can also be adjusted between 80kg and 120kg.

What Is the Probat G120/1?

The Probat G120/1 is a German-engineered industrial coffee roaster designed for mid- to large-scale production environments. It represents a further development of the classic G120 model, integrating a compact build with key systems such as integrated cooling water, electrical installation, and a full pneumatic and electrical control panel. This makes it suitable for continuous commercial operation with stable performance.

Batch Size and Roast Capacity

The roaster is built to handle a standard batch size of 120kg of green coffee. Its maximum hourly production capacity reaches approximately 480kg, assuming optimal cycle times and continuous operation. Depending on variables like desired roast development and bean type, batch sizes can flexibly range from 80kg to 120kg — with corresponding changes in roast time.

Standard roast duration falls between 8 and 20 minutes, a common window for achieving desired roast levels without over- or under-developing the coffee. Adjustments in batch weight may affect timing within that range.

Design and Key Systems

The G120/1 features a tightly constructed design optimised for industrial use. Key elements include:

• Roasting Drum: The core of the machine, built with dense internal insulation. Heat is supplied via burner-generated hot air that enters through a wire mesh and circulates within the drum’s chamber, ensuring even heat distribution during the roast.
• Cooling System: Pre-chilled water is used in a cooling phase initiated at the end of the roast. Water is directed via nozzles in the drum lid to rapidly reduce the temperature of the freshly roasted coffee.
• Combustion Management: Both the roasting burner and ignition system are governed by an integrated management system that optimises flame control, gas supply, and electrical operations for consistent heat application.

The machine is configured for left-handed operation, suiting specific layout preferences in commercial roasting facilities.

Available Configurations

The G120/1 is offered in two variants:

• AP (Automatic-Pneumatic): Designed for automated pneumatic functions, reducing manual intervention.
• HP (Manual-Pneumatic): Allows for more hands-on pneumatic control where needed.

Various exhaust gas cleaning options can be specified based on local regulations and operational needs. These include post-combustion systems, pre-clean heating units, or catalyst-based exhaust filtration — ensuring the roaster can meet environmental and efficiency standards.

Frequently Asked Questions

What is the batch size of the Probat G120/1?

The standard batch size is 120kg of green coffee, but the roaster can handle between 80kg and 120kg per batch depending on roast profile goals and operational requirements.

How much coffee can the Probat G120/1 roast per hour?

At full capacity, the Probat G120/1 can roast approximately 480kg of coffee per hour, assuming a continuous cycle with optimal timing and batch management.

What is the typical roast time range for the Probat G120/1?

Most roasts on the Probat G120/1 take between 8 and 20 minutes, though actual timing may vary based on batch size and roast profile.

Does the Probat G120/1 have an integrated cooling system?

Yes, it includes a pre-cooling water system that activates at the end of the roast. Water is sprayed directly onto the beans via nozzles in the drum lid to rapidly cool them after roasting.

What control systems does the G120/1 use for combustion?

The roaster uses an integrated management system to control the burner, ignition, gas supply, and electrical components, ensuring consistent and safe combustion throughout the roast cycle.

What are the two versions of the G120/1 and how do they differ?

The G120/1 comes in AP (Automatic-Pneumatic) and HP (Manual-Pneumatic) versions. The AP version offers more automation, while the HP allows for manual pneumatic adjustments where preferred.

Recommended FrontStreet Beans for Probat G120/1 Production

For roasters using the Probat G120/1, FrontStreet Coffee’s Ethiopia Humbera offers bright citrus and floral tones ideal for medium-light roasts, while Brazil Queen Manor provides nutty, chocolatey balance perfect for medium-dark profiles. Both beans respond well to the G120/1’s precise airflow and even drum heat distribution, making them great choices for high-volume single origins or blends. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.