Labconco™ Benchtop FreeZone™ Freeze-Dry Systems: 4.5L Capacity

With small footprint and four feet, these smaller capacity models fit easily on benchtop and are ideal for light and moderate loads

Manufacturer: Labconco™ 7750031

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Catalog No. 10-271-13

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Required Accessories : Drying chambers or other drying accessories, vacuum pumps and glassware. All models except 4.5L models require drying accessories (4.5L models come with permanently installed 10-port stainless-steel drying chamber for bulk sample connection.)


    Capacity (Metric) 4.5L
    Dimensions (L x W x H) Exterior 18.5 x 18 x 22.5 in. (47 x 45.7 x 57.2cm)
    Length (English) Exterior 18.5 in.
    Height (English) Exterior 22.5 in.
    Shipping Weight (Metric) 44kg
    Temperature Range (Metric) -50°C
    Electrical Requirements 220/240V 50Hz
    Voltage 220/240V
    Hertz 50Hz
    Height (Metric) Exterior 57.2cm
    Material PTFE Coated
    Length (Metric) Exterior 47cm
    Sublimation Rate >2L
    Width (English) Exterior 18 in.
    Width (Metric) Exterior 45.7cm
    Product Type Benchtop

    • Refrigeration system cools collector to -50°C (-58°F)
    • Upright collector chamber simplifies defrosting; many models include built-in hot gas defrost to quickly melt any collected ice
    • Automatic one-button startup initiates condenser cooldown and vacuum pulldown
    • LCD indicates temperature in °C or °F; vacuum in mbar, Pa, and torr
    • LED vacuum and temperature “waves”, on all except 1L models, show relative system vacuum and collector temperature
    • LED alarm light, on all except 1L models, flashes for abnormal events, including power interruptions, improper power supply, when collector temperature rises above -40°C, and required vacuum pump service
    • Vacuum control valve, on all except 1L systems, maintains vacuum level


    • RS-232 port, on all models except 1L, can be used to transmit data to a computer
  • Features
    • Easy to service with retractable drain hoses
    • Cabinets are white powder-coated steel with brushed stainless-steel front panels and blue accents
    • Console models have removable front panels and are roomy enough to accommodate vacuum pump
    • Benchtop models easily fit on laboratory benchtop to process light to moderate loads
    • PTFE-coated collector chamber and coil for processes involving corrosive compounds are available

    • 4.5L Model has stainless-steel drying chamber with 10 valves to connect serum bottles, ampules or freeze-dry flasks with 0.5 to 0.75 in. adapters (available separately)

  • Description & Specifications
  • Accessories

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