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Large Scale Vacuum Freeze Dryer LLFD-B11 is rectangular type, cylindrical compact structure. It offers manual and auto control mode, sensor calibration, intelligent temperature control, freeze drying termination reminding and other functions. The temperature ranges from -50℃ to +70℃ and offers 3+1 layers of shelf with 70 mm if shelf spacing and size of each shelf is 270 mm × 400 mm. Material used AISI 304 stainless steel, top and bottom plate thickness 5 mm. Features CFC Free refrigerant and PT-100 platinum resistance temperature sensor. Designed with refrigeration system, shelf, condenser, vacuum system and liquid circulation system. The heat is transferred to the inner space of the vacuum chamber and absorbed heat during sublimation efficiently. The product is dried completely and evenly.
| Drying Chamber | Freeze-drying area: 0.32 m2 Layers of shelf: 3 + 1 Temperature scope of shelf: -50℃ to +70℃(no-load) Shelf temperature error: ±1℃ (in balance) Shelf spacing: 70 mm Size of shelf: 270 mm × 400 mm |
| Condenser | Min. Temperature of condenser: ≤-70℃ (no-load) Water-capture capability: ＞6 Kg Liquid material: 3L (Thickness: 10 mm） Defrosting: Electric defrosting Final Vacuum degree: ≤ 5Pa Style of cooling: Fan cooling |
| Shelf | Shelf effective area: 0.32 m2 Shelf size: 270 mm × 400 mm Shelf numbers: 3+1 Top shelf as temperature compensating plate Material number plate: 3 pcs Shelf spacing: 70 mm Shelf material: AISI 304 stainless steel, Top and bottom plate thickness 5 mm Shelf temperature range: -50℃ to +70℃ (no-load) |
| Condenser Design | Condenser Shape: Vertical type, cylindrical
Compact structure, better water capture ,easy to clean and defrosting Condenser material: AISI 304 stainless steel Coiling pipe material: Copper Condenser water capture: ≥ 30 kg Condenser Temperature Decreasing: +20℃ to 40℃, within 30 minutes Condenser Min. temp.: ≤ -75℃ System final vacuum degree: ≤ 5 Pa Thermal insulation material: Polyurethane foams |
| Refrigeration System | Refrigerator: France original imported TECUMSEH full closure compressor Refrigerant: CFC Free refrigerant Refrigerator number: 2 sets Shelf refrigeration: 1 sets (shelf refrigeration at same time, indirect refrigeration) Condenser refrigeration: 1 set (shelf refrigeration at same time, direct refrigeration) |
| Vacuum System | Double stage rotary vane pump: World famous brand Quantity: 1 set Vacuum gauge: Reborn Chamber pumping rate: Atmosphere 10 Pa ≤30 minutes (in dry condition) System Maximum vacuum: ≤ 5Pa System leaking rate: ≤ 10 Pa·l / sec |
| Liquid Circulation System | Liquid: Low viscosity silicon oil( 25˚C, 5cst )National qualified product Liquid tubing material: AISI 304, welding, heat keeping Circulation pump: WILO, original imports, web rotor canned pump From Germany brand , world famous brand Circulation pump quantity: 1 set Heating rate: 0.8 kW Heating control style: Solid-state relay Stainless steel plate heat exchanger: Well-known brands Temperature sensor: PT-100 platinum resistance |
| Control style | Automatic and manual control |
| Noise | ≤ 80 dB |
| Installation Power | 3.0 kW (this is installed power, not running power) |
| Power supply | Single phases, 220V |
| Dimension | 770 × 750 × 1520 mm |
| Weight | About 400 kg |
Large Scale Vacuum Freeze Dryer is used in Bio-Pharma industry to freeze dry and store drug and medicinal product, materials, other biomaterials. Also used in food industry to freeze dry fruits and vegetables, fish and meat, Processed and raw food material to increase their shelf life and maintain quality.
