Labotemp Small Freeze Dryer LFD-302 provides flexible freeze-drying for laboratories requiring both chamber and external flask lyophilization. This compact benchtop freeze dryer features four external drying ports, making it suitable for processing liquid samples, biological materials, enzymes, plant extracts, pharmaceuticals, and laboratory chemicals with minimal handling. Equipped with an -88°C cold trap, 40 L chamber capacity, 0.1 m² freeze-drying area, and ≤0.1 Pa ultimate vacuum, the system delivers stable drying conditions while preserving sample structure and biological activity. The transparent chamber door enables continuous observation throughout the drying cycle.
Designed for efficient laboratory workflows, the LFD-302 incorporates a 7-inch touchscreen PLC controller with programmable lyophilization methods, real-time monitoring of vacuum and temperature, historical data storage, and USB data export for process traceability. Automatic cold trap defrosting, intelligent diagnostics, vacuum protection, and audible alarms enhance operational safety, while the energy-efficient refrigeration system and corrosion-resistant stainless steel construction ensure dependable long-term performance. Its combination of an internal drying chamber and four external flask connections makes the LFD-302 an excellent choice for research, pharmaceutical development, biotechnology, and university laboratories.
Why Choose Labotemp Small Freeze Dryer LFD-302?
✓ Flexible Sample Drying: Internal drying chamber with four external flask ports supports multiple sample types in a single system.
✓ Reliable Lyophilization: -88°C cold trap, 0.1 m² freeze-drying area, and ≤0.1 Pa ultimate vacuum deliver consistent drying performance.
✓ Intelligent Operation: 7-inch touchscreen PLC, programmable drying cycles, USB data export, and real-time process monitoring.
| General Specifications | |
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Type : External Flask Freeze Dryer Type |
External Flask Freeze Dryer |
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Cold Trap Temperature : -88°C Cold Trap Temperature |
-88°C |
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Shelf Temperature Range : -60°C to +70°C Shelf Temperature Range |
-60°C to +70°C |
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Shelf Temperature Accuracy : < ±2°C Shelf Temperature Accuracy |
< ±2°C |
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Ultimate Vacuum Degree : ≤0.1 Pa Ultimate Vacuum Degree |
≤0.1 Pa |
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Vacuum Display Accuracy : 0.1 Pa Vacuum Display Accuracy |
0.1 Pa |
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Pumping Speed : ≤15 min (Atmospheric pressure to 10 Pa) Pumping Speed |
≤15 min (Atmospheric pressure to 10 Pa) |
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Freeze-Drying Area : 0.2 m² Freeze-Drying Area |
0.2 m² |
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Maximum Ice Trapping Capacity : 4 kg Maximum Ice Trapping Capacity |
4 kg |
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Water Trapping Capacity : 3 kg / 24 h Water Trapping Capacity |
3 kg / 24 h |
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Chamber Capacity : 40 L Chamber Capacity |
40 L |
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Cold Trap Capacity : 11 L Cold Trap Capacity |
11 L |
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External Freeze-Drying Bottles : 4 External Freeze-Drying Bottles |
4 |
| Freeze-Drying Parameters | |
|
Vial Capacity Ø22 mm : 432 vials Vial Capacity Ø22 mm |
432 vials |
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Vial Capacity Ø16 mm : 800 vials Vial Capacity Ø16 mm |
800 vials |
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Vial Capacity Ø12 mm : 1452 vials Vial Capacity Ø12 mm |
1452 vials |
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Shelf Dimension : 270 × 400 mm Shelf Dimension |
270 × 400 mm |
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Shelf Layers : 2 layers Shelf Layers |
2 layers |
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Shelf Spacing : 60 mm Shelf Spacing |
60 mm |
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Drying Configuration : External flask freeze drying Drying Configuration |
External flask freeze drying |
| Operation | |
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Control System : 7-inch LCD touchscreen PLC control Control System |
7-inch LCD touchscreen PLC control |
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Lyophilization Programs : Up to 40 customizable programs Lyophilization Programs |
Up to 40 customizable programs |
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Programmable Process Segments : Up to 40 segments per program Programmable Process Segments |
Up to 40 segments per program |
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Process Monitoring : Real-time vacuum pressure, shelf temperature, chamber temperature, and process time Process Monitoring |
Real-time vacuum pressure, shelf temperature, chamber temperature, and process time |
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Data Management : Historical process records, data storage, and USB export Data Management |
Historical process records, data storage, and USB export |
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Data Storage : More than 10,000 complete process records Data Storage |
More than 10,000 complete process records |
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Vacuum Measurement : Pirani vacuum gauge Vacuum Measurement |
Pirani vacuum gauge |
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Vacuum Protection : Anti-backstreaming protection during power interruption Vacuum Protection |
Anti-backstreaming protection during power interruption |
|
Defrost System : Electrically actuated cold trap defrosting Defrost System |
Electrically actuated cold trap defrosting |
| Physical Dimensions | |
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Overall Dimensions (W × D × H) : 820 × 695 × 995 mm Overall Dimensions (W × D × H) |
820 × 695 × 995 mm |
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Shipping Dimensions (W × D × H) : 940 × 840 × 1230 mm Shipping Dimensions (W × D × H) |
940 × 840 × 1230 mm |
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Freeze Dryer & Pump Dimensions : 610 × 230 × 310 mm Freeze Dryer & Pump Dimensions |
610 × 230 × 310 mm |
|
Gross Weight : 210 kg Gross Weight |
210 kg |
Water Trapping Capacity: 3 kg / 24 h
Vial Capacity Ø22 mm: 216 vials
Vial Capacity Ø16 mm: 400 vials
Vial Capacity Ø12 mm: 726 vials
Water Trapping Capacity: 3 kg / 24 h
Vial Capacity Ø22 mm: 432 vials
Vial Capacity Ø16 mm: 800 vials
Vial Capacity Ø12 mm: 1452 vials
Vacuum Pump Speed: 4 L/s
Ultimate Vacuum: ≤ 5 Pa
Tray Spacing: 70 mm
Tray Diameter: Φ240 mm
Water Capture Capacity: 4 kg/Batch
Vial Capacity (Ø22 mm): 260
Vial Capacity (Ø16 mm): 480
Vial Capacity (Ø12 mm): 920
Water Capture Capacity: 4 kg/batch
Vacuum Pump Protection: Delayed vacuum pump start
Vacuum Chamber: Stainless steel vacuum line with KF25 quick-connect clamp
Vacuum Alarm: Automatic alarm and protection
Water Capture Capacity: 4 kg/batch
Vial Capacity Ø22 mm: 260 vials
Vial Capacity Ø16 mm: 480 vials
Vial Capacity Ø12 mm: 920 vials
Water Capture Capacity: 4 kg/batch
Vial Capacity Ø22 mm: 165 vials
Vial Capacity Ø16 mm: 285 vials
Vial Capacity Ø12 mm: 560 vials
