CQ-2kg Commercial Coffee Roasters

Technical Selection

Key parameters for matching this machine to your production. Send us your product to freeze, daily output and power supply and our engineers will confirm the right configuration.

Key Advantages

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Main Components

• The equipment typically consists of the main roasting unit, a drum, a heating system, a temperature control system, a cooling tray, a fan, a chaff collector, and a control panel. Once green coffee beans are loaded into the rotating drum, they are heated evenly through conduction, convection, and hot-air circulation. As the bean temperature rises, the beans undergo Maillard and caramelization reactions, resulting in various roast levels and flavor profiles.
• Most models feature a drum made of 304 or food-grade stainless steel. Some utilize a double-walled (dual-layer) drum design, which helps prevent localized overheating, enhances thermal stability, and improves roasting uniformity. Parameters such as drum rotation speed, airflow volume, and heating power can be adjusted—depending on the specific model—to accommodate different roasting styles, ranging from light to medium and dark roasts.

Working Principle

Workflow 1. Preheating Phase: Upon startup, the heating system preheats the roasting drum to ensure the machine reaches a stable operating temperature. Once preheating is complete, the green beans can be loaded. 2. Loading and Temperature Rise: Approximately 2kg of green coffee beans is loaded into the roasting drum. As the drum rotates, the beans are tumbled, ensuring even heat distribution. 3. Dehydration and Flavor Development: Moisture on the surface of the green beans gradually evaporates, and the color shifts from green to yellow. This is followed by the Maillard reaction and caramelization, which develop flavor notes such as nuttiness, caramel, and floral or fruity aromas. 4. First Crack and Determining the End of Roasting: When the bean temperature reaches approximately 180–195°C, the coffee beans undergo the "first crack." The operator determines the optimal time to discharge the beans by observing their color through the viewing window, listening for the cracking sounds, and monitoring the temperature/time display on the control panel. 5. Cooling and Stabilization: Once the desired roast level is achieved, the beans are discharged into a cooling tray. A cooling fan rapidly removes residual heat, halting the roasting process and preventing the beans from roasting any further.

Detailed Features

• ▸A hybrid (direct-flame/hot-air) coffee roaster utilizes two parallel heating pathways: the outer surface of the roasting drum is heated by flames or heating elements, providing conductive heat (which contributes to sweetness, body, and heat penetration to the bean core), while hot air is channeled into the drum, providing convective heat (which ensures uniformity, efficient moisture removal, and the venting of smoke and humidity). With the ability to independently adjust heat intensity and airflow via a control panel, operators can achieve flavor profiles and batch-to-batch consistency comparable to professional-grade equipment, all with a relatively low learning curve.

Packaging & Shipping

The unit is packed for export in a fumigation-free plywood crate. It is wrapped in PE film for moisture protection, with EPE foam corner protectors for cushioning, and secured to a wooden base with bolts—ensuring robust protection for critical components such as the glass viewing window, control panel, and fan. The standard crate dimensions are approximately 1200 × 820 × 1050 mm, with a gross weight of about 165 kg. We support FOB, CIF, and DDP shipping terms and can coordinate with your designated freight forwarder. Each shipment includes a packing list, invoice, certificate of origin, CE certificate, and user manuals in both Chinese and English. Before leaving the factory, every unit undergoes a no-load test run, with photographic records kept, ensuring the equipment is ready for immediate use upon arrival.

After-Sales Service

For our 2kg coffee roaster, we provide a comprehensive warranty for the entire unit, extended warranties for core components, remote technical support, long-term spare parts availability, installation and commissioning, operational training, routine maintenance, and online repair services. Upon delivery, we supply instructional videos, technical manuals, and guidance on roast profiling. Should any malfunctions occur during the warranty period due to defects in design, materials, or manufacturing, we offer free repairs or replacements. Beyond the warranty period, we continue to provide original spare parts and paid maintenance services.

Frequently Asked Questions