DGJ-300E Pilot Production Freeze Dryer, -72 °C, 3.02 m² (CAT#: STEM-AL-4577-ZJF)

DGJ-300E Pilot Production Freeze Dryer, -72 °C, 3.02 m² is designed for pilot and production freeze-drying of bulk materials. The system freezes the loaded material and removes ice by sublimation under reduced pressure. The documented cold-trap limit is ≤ -72 °C. The available drying area is 3.02 m². The documented vacuum target is ≤10 Pa. The documented water or ice capture capacity is ≥58 kg. The loading arrangement uses 7 + 1 radiant shelf. Electronic control records operating parameters and supports process review through stored curves or exported data where specified. The system supports repeatable freeze-drying within the documented temperature, vacuum, load, and environmental limits.

Cold-Trap Limit: ≤ -72 °C
Drying Area: 3.02 m²
Continuous Water Capture: ≥58 kg
Rated Vacuum: ≤10 Pa
Ultimate Vacuum: ≤5 Pa
Shelf Configuration: 7 + 1 radiant shelf
Shelf Size: 720 × 600 mm
Shelf Spacing: 70 mm
Shelf Temperature Range: -50 to +70 °C
Bulk Batch Capacity: 43 kg
Power: AC 380 V, 50 Hz, 9.5 kW
Dimensions: approximately 2,100 × 1,100 × 1,850 mm
Net Weight: 1.7 t air-cooled / 1.9 t water-cooled
Heat Rejection: Air or water cooling

Circulated shelf cooling and heating for production freeze-drying
PLC touchscreen with automatic or semi-automatic process control
Separate drying and cold-trap chambers support efficient sublimation
Vacuum protection with pump monitoring and pressure balancing
Process recipes, data logging, and traceable curve export
Cascade refrigeration with restart and overload protection
Configurable defrost, inert-gas backfill, or remote monitoring functions