Automatic Refrigerant Filling Machine with Weighing Control This automatic refrigerant filling machine charges by weight rather than by time or pressure, so every cylinder and every circuit receives the exact quantity that was programmed. A 2000 g weighing platform with 0.1 g resolution keeps the filling tolerance inside a 0.1 percent window, making the unit suitable for both workshop service work and small batch production lines. Key Features Fully automatic weighing-based