Large Scale Vacuum Freeze Dryer LLFD-T2011

Introduction

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 304 stainless steel, top and bottom plate thickness 5 mm. Features Free refrigerant and 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. This laboratory freeze dryer is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

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.

Specifications

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 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 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 full closure compressor Refrigerant 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 304, welding, heat keeping Circulation pump , 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 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

Features

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 control with 7 inch 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 304 stainless steel and door material

Working temperature ranges from -50℃ to +70℃

Thermal insulation material used is Polyurethane foams

Equipped with platinum resistance temperature sensor

Designed with refrigeration system, shelf, condenser, vacuum system and liquid circulation system

Adopts Electric defrosting mode

Environmental-friendly refrigerant

FAQs

1. What are the key factors to consider when selecting this laboratory freeze dryer for laboratory use?

When selecting this laboratory freeze dryer, key factors include: 1) The instrument's precision and accuracy to meet experimental requirements; 2) Compatibility with the types of samples and applications you will be working with; 3) Ease of use and maintenance requirements; 4) Safety features to protect operators and samples; 5) Calibration and certification requirements; 6) Cost-effectiveness and long-term reliability; 7) Technical support and service availability from the supplier. Evaluating these factors ensures that the instrument meets your laboratory's specific needs.

2. How often should this laboratory freeze dryer be calibrated to ensure accurate results?

It is recommended to calibrate this laboratory freeze dryer at least once every 6-12 months under normal usage conditions. More frequent calibration (every 3-6 months) may be necessary if: 1) The instrument is used continuously for extended periods; 2) It is exposed to harsh environmental conditions (temperature fluctuations, humidity, dust); 3) It is used for critical applications requiring high precision; 4) The instrument has been moved or subjected to physical shock; 5) Calibration checks indicate significant deviations from standard values. Always follow the manufacturer's calibration guidelines.

3. What are the common maintenance procedures required for this laboratory freeze dryer?

Common maintenance procedures include: 1) Regular cleaning of the instrument's exterior and sample contact surfaces to prevent contamination and ensure proper operation; 2) Inspection of moving parts (if applicable) for wear and lubrication as recommended by the manufacturer; 3) Replacement of consumable parts (filters, bulbs, reagents) according to usage guidelines; 4) Verification of performance parameters (temperature, pressure, voltage) regularly; 5) Storage of the instrument in a clean, dry environment when not in use; 6) Keeping a maintenance log to track service activities and identify potential issues early; 7) Following the manufacturer's specific maintenance schedule for optimal performance and longevity.

4. Can this laboratory freeze dryer be used with different types of samples, and are there any compatibility considerations?

Yes, this laboratory freeze dryer can be used with a variety of sample types, but compatibility considerations are important: 1) Check if the instrument's materials are compatible with the chemical composition of your samples (avoid corrosive or reactive substances that may damage the instrument); 2) Ensure that the sample volume and concentration are within the instrument's recommended range; 3) For biological samples, consider sterility requirements and potential cross-contamination risks; 4) For volatile or hazardous samples, ensure proper ventilation and safety precautions are in place; 5) Consult the manufacturer's documentation for specific sample compatibility guidelines, and perform compatibility tests with new sample types before regular use.

5. What should be done if the laboratory freeze dryer malfunctions or produces inconsistent results?

If malfunctions or inconsistent results occur: 1) First, check the instrument's user manual for troubleshooting guidelines specific to the issue; 2) Verify that the instrument is properly calibrated and within its calibration period; 3) Inspect for obvious issues such as loose connections, damaged parts, or incorrect settings; 4) Clean the instrument thoroughly to remove any contamination that may affect results; 5) Repeat the experiment with a known standard sample to determine if the issue is with the instrument or the sample; 6) If the problem persists, discontinue use of the instrument to prevent further damage or inaccurate results; 7) Contact technical support or a qualified service technician for diagnosis and repair, providing details of the issue and any troubleshooting steps already performed.