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Large Scale Vacuum Freeze Dryer LLFD-B11

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

Designed with freeze drying area 0.32 m²
Offers vertical type, cylindrical compact structure
Designed with rectangular type dry chamber, Pre-freezing, drying in same chamber without any manual operation
Offers PLC control with 7 inch LCD touch graphic display, can be operated in auto, semi-auto and manual mode
Roughness of inner wall is Ra ≤ 0.6 μm
Opening direction clockwise or anticlockwise
Material used AISI 304 stainless steel and door material ACRYLIC
Working temperature ranges from -50℃ to +70℃
Thermal insulation material used is Polyurethane foams
Equipped with PT-100 platinum resistance temperature sensor
Designed with refrigeration system, shelf, condenser, vacuum system and liquid circulation system
Adopts Electric defrosting mode
Environmental-friendly refrigerant

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.