Description
An industrial peanut roaster machine is the core equipment for large-scale peanut and nut roasting — designed to deliver consistent color, aroma and texture with continuous or batch production. It is suitable for roasting peanuts and various other granular nuts and seeds efficiently and on a commercial scale. Fuxun Machinery offers two options: batch drum (rotary) peanut roaster and continuous belt peanut roaster.
Uses of Peanut Roasting Machine:
- Prepares peanuts for snack peanut products, coated nuts, and flavored peanuts;
- Roasting raw peanuts to enhance the flavor, color, and crunch, for peanut butter or oil processing;
- Reduce moisture content to improve shelf life.
- Can roast peanuts as well as other nuts and seeds such as cashews, almonds, soybeans, or sesame seeds.
Drum Peanut Roaster
A rotary peanut roaster uses a rotating drum heated by gas or electricity to roast peanuts evenly. Heat is applied through conduction, convection, and infrared radiation, depending on the model. As the drum turns, the peanuts tumble continuously, preventing overheating and ensuring uniform color, aroma, and flavor. Fuxun Machinery offers electric heating type and gas heating type, with flameless catalytic combustion for efficiency and safety.
- Each drum typically holds around 100 kg of peanuts per batch.
- Roasting time is usually 40–45 minutes per batch.
- Multiple (1-5) drums can be used for higher throughput.
- Automatic temperature control, typically adjustable between 0–300°C, often set in the range of 160–230°C for peanuts.
- Compact footprint for batch processing.
- Product-contact parts made of stainless steel for hygiene.
| Model | Motor Power & Heating Power | Drum | Capacity (per batch) | Dimensions | Weight |
| DHL-1/QHL-1 | 1.1 kW + 22.5 kW | 1 | 100 kg | 2,900*1,400*1,650mm | 700 kg |
| DHL-2/QHL-2 | 2.2 kW + 44 kW | 2 | 200 kg | 2,900*2,100*1,650mm | 1,200 kg |
| DHL-3/QHL-3 | 3.3 kW + 66.5 kW | 3 | 300-400 kg | 2,900*3,020*1,650mm | 1,600 kg |
| DHL-4/QHL-4 | 4.4 kW + 88 kW | 4 | 400-500 kg | 2,900*3,850*1,650mm | 2,000 kg |
| DHL-5/QHL-5 | 5.5 kW + 112.5 kW | 5 | 500-600 kg | 2,900*4,700*1,650mm | 2,400 kg |
Continuous Belt Peanut Roaster
A continuous peanut roaster is designed for high-capacity, automated, continuous production of peanuts and other nuts or seeds. Unlike a batch drum roaster, it processes materials using multi-layer mesh belts and circulating hot air to achieve uniform roasting, ensuring consistent quality over large quantities. It is widely applied in peanut butter production, snack food production, nut roasting plants, and food ingredient processing facilities.
Key Features:
- Modular Multi-layer Mesh Belt Structure: The machine adopts a multi-layer stainless steel conveyor belt, which carries peanuts from the top layer to the bottom layer. This structure maximizes roasting area and improves heat utilization.
- High Heating Efficiency: A dedicated heating furnace generates stable, high-temperature airflow. Hot air circulates continuously through each layer, ensuring efficient heat transfer.
Precise Control System: An intelligent electrical control system manages machine startup, temperature settings, belt speed, and shutdown. Operators can easily adjust parameters to match different production requirements.
Excellent Product Quality: Roasted peanuts achieve bright color, uniformity, and minimal damage, resulting in high market value and processing yield.
Working Principle
Peanuts enter from the upper feed inlet and are evenly distributed onto the top conveyor belt. As the belts move, the peanuts gradually travel downward through multiple layers. During this process, the peanuts fall from one layer to the next, ensuring continuous tumbling and thorough heat penetration.
High-temperature hot air flows across and through the moving peanut layers, allowing the kernels to fully contact the heat source. This multi-layer movement and strong air convection ensure even roasting from surface to core. Finally, the roasted peanuts are discharged from the bottom outlet, completing a smooth and continuous roasting process.
Drum Batch vs. Continuous Belt Peanut Roasters
| Item | Drum Batch Roaster | Continuous Belt Roaster |
|---|---|---|
| Working Mode | Batch roasting in a rotating drum | Continuous roasting on multi-layer mesh belts |
| Capacity | 100-600 kg per batch | 500-2,000 kg/h (24/7 operation) |
| Roasting Quality | Good uniformity, slightly higher breakage | Excellent uniformity, low breakage |
| Control | Adjustable temperature & time | Precise temperature, belt speed, and airflow |
| Initial Investment | Lower | Higher |
| Operating Cost | Higher | Lower |
| Space Requirement | Compact, small footprint | Larger footprint |
| Best For | Small-medium plants, flexible production | Medium–large plants, continuous lines |
How to Choose Right Peanut Roaster?
Choosing the right roaster depends on your production scale, desired product quality, and factory layout. At Fuxun Machinery, we usually guide customers based on the following points:
1. Required Capacity
- Drum peanut roaster: Suitable for small and medium production, flexible batches, frequent recipe changes.
- Continuous belt roaster: Designed for large-volume, continuous processing with stable 24-hour operation.
2. Required Product Quality: Choose the continuous belt roaster if you require uniform color, no cracking or surface damage, minimal peeling, and high product consistency.
3. Floor Space & Line Integration: Drum roasters are compact and easy to install, while belt roasters require a longer space, but simpler to connect to automated grinding or packaging lines. You can talk with our team in detail.
4. Budget and Future Expansion: Drum roaster = lower initial investment, ideal for flexible production. Belt roaster = higher efficiency and reduced labor cost, suitable for scaling up.
Whether you are producing in small batches or running a high-capacity continuous line, Fuxun Machinery offers the right peanut roasting solution for your needs. Our roasters are designed for consistent color, aroma, and crunch, while being easy to operate, safe, and reliable. Contact our team today to find a perfect roasting solution!
