AEC Model WD-1250 RT Material Dryer and Hopper Juliet Schindler 8 years ago AEC Model WD-1250 RT Material Dryer and Hopper AEC Model WD-1250 RT Material Dryer & Hopper – Air volume- 1250 CFM (cubic feet per minute) – Through put- 1200 lbs/ per hour – Hopper capacity- 135 cubic feet – Electric heater – Condition- Very good