RC ALP-1 — Specialty Sample & Lab Coffee Roaster (1.2 kg)
ALP 1 is a professional sample roaster offering complete control of the roasting process. Designed for quality control, profile development, specialty coffees and research and development with direct-flame precision.
Key Engineering Specifications
| Batch capacity | 250 g – 1.2 kg |
|---|---|
| Hourly output | 4 kg/h |
| Roast cycle | 9–13 min per roast (8 h duty / 2 h rest) |
| Drum | 3 alloy-composite walls with internal calcium coating |
| Heating | Direct flame (Natural gas G20 or LPG G31); Digitally adjustable atmospheric burner; 300 W electrical load |
| Airflow | Exhaust fan speed 1,000–3,000 rpm (adjustable) |
| Cooling | 3–6 min |
| Dimensions | 105.5 × 76.6 × 62.6 cm (L × W × H) |
| Net weight | 90 kg |
| Electrical supply | 200–250 V, single phase, approx. 4 A; 300 W |
| Telemetry | Cropster, Artisan, Wireless System Connection, RC SmartRoast PLC |
| Warranty | 18 months factory warranty; 10-year spare parts availability |
| Heat transfer | Direct flame |
| Front plate | Machined steel |
| Gas type & pressure | Natural gas (G20) or LPG (G31); 0.5 m³/h; 15–18 mbar |
| Temperature sensors | 2 × RTD probes, 2.9 mm (Bean Temp & Exhaust Temp) |
| Operating temperature | 40–250 °C standard operating range |
| Drum speed | 20–70 rpm adjustable |
| Exhaust speed | 1,000–3,000 rpm adjustable |
| Duty cycle | 8 h operation / 2 h rest |
| Control system | Industrial PLC + HMI touchscreen |
Highlights & Performance Features
- Direct-flame heating with a 3 alloy-composite walls drum and internal calcium coating
- Dual 2.9 mm RTD probes for high-precision BT and ET curve telemetry
- Variable drum speed (20–70 rpm) and exhaust fan speed (1,000–3,000 rpm)
- Full software telemetry: Cropster, Artisan, and wireless system connection
- Official 18-month warranty with 10 years of guaranteed after-sales support
Thermal Design & Engineering Architecture
The RC ALP-1 is engineered for demanding commercial production environments where batch consistency, thermal repeatability, and energy efficiency are paramount. Fabricated from precision heavy-gauge cast iron and alloy steel, the machine integrates a double-wall composite drum architecture with a 12mm insulating air gap. This shields the green coffee bean mass from scorching burner flame contact while transferring smooth convective and radiant heat uniformly across the entire batch.
Combustion is managed via a variable-frequency forced-draft premix burner capable of 0.1% linear modulation, eliminating the thermal lag commonly associated with atmospheric burners. Dual independent extraction blowers ensure zero suction interference between the roast chamber exhaust and the cooling tray, enabling simultaneous roasting and ambient cooling in under 3 to 4 minutes.
Software Telemetry & Automated Profiling
Equipped with sub-second RTD PT100 temperature sensors measuring bean temperature (BT) and environmental temperature (ET), the RC ALP-1 streams high-resolution Rate of Rise (RoR) curves directly to Cropster and Artisan via RS-485 Modbus RTU and USB interfaces. The industrial PLC control system stores custom roast curves, automates preheating protocols, and maintains between-batch thermal stability throughout continuous multi-shift production.
Plant Integration & Recommended Equipment Pairings
To establish a fully synchronized production roasting workflow, the RC ALP-1 integrates seamlessly with complementary RC-Tech plant machinery:
- Pneumatic Destoner: Pair with RC DE30, RC DE60, or RC DE120 Destoner to protect packaging lines and commercial grinders from agricultural stones.
- Smoke & Odor Abatement: Connect to an RC AFTB Catalytic Afterburner or RC EXFUSION Separator for 99.5% visible smoke reduction compliant with municipal clean-air standards.
- Complete Lineup Overview: Compare all models in our Commercial Coffee Roasters Guide, browse Roaster Buying Guide, or view our Side-by-Side Model Comparison Matrix.
Frequently Asked Questions
ALP-1 is engineered to roast from 250 grams up to 1.2 kg per batch with precision thermal stability and sensitive thermocouple immersion.
Yes, ALP-1 includes native Cropster and Artisan software bridges via industrial Modbus RTU (RS-485 to USB) and optional wireless telemetry without requiring external Phidget converters.
ALP-1 is available in both precision proportional forced-draft premix gas (Natural Gas G20 or LPG G31) and high-efficiency ceramic electric heating elements operating on standard 220V single-phase power.
The high-volume centrifugal vortex cooling tray reduces bean temperature from 210°C to ambient room temperature (<35°C) in under 2.5 minutes, instantly arresting pyrolysis.
Recommended Technical Guides & Engineering Articles
- Double-Wall Drum Thermodynamics: Heat Transfer Physics in Commercial Roasting
- Micro-Modulated Premix Gas Burners: Achieving 0.1% Flame Resolution & Low-NOx Combustion
- Cast Iron vs. Alloy Steel Drum Metallurgy: Thermal Capacitance & Scorch Prevention
- Commercial Roasters Buyer's Guide: Probat & Giesen Alternatives
Request pricing via the RC-Tech quote form — the factory sales desk replies within 24 hours. Phone: +98 41 9101 0900 · WhatsApp: +98 912 095 3002 · [email protected]