The RTFOT (Rolling Thin Film Oven Test) is a critical laboratory instrument used to simulate the short-term aging of asphalt binders. This process mimics the hardening that occurs during the high-heat stages of mixing, hauling, and paving. By exposing a moving film of bitumen to heat and air, it prepares samples for further performance testing via DSR, PAV, or BBR.

Key Performance Features

• Touch-Screen Intelligence: A high-resolution 7″ color touch-screen (on advanced models) provides real-time monitoring of temperature, carousel speed, and airflow.
• Rapid Heat Recovery: Engineered to reach the target temperature of 163°C within minutes of sample loading, exceeding the strict recovery time requirements of international standards.
• Precision Airflow Control: Includes an integrated digital flow meter and air jet system to maintain a constant, regulated flow of 4,000 ml/min.
• Closed-Loop Speed Control: The vertical carousel rotates at a precise 15 rpm ± 0.2, ensuring uniform aging across all eight glass containers.
• Advanced Safety: Features a dual-safety thermostat to prevent overheating, a door-open alarm, and a magneto thermic switch for electrical protection.