Laboratory Freeze Dryer

Laboratory Freeze Dryer

The LGJ-20 -80C lab freeze dryer is designed for freeze drying low freezing point materials. Inbuilt a stainless steel upright ice condenser for water collect, lowest temperature -80C, and can hold 5kgs ice in 24hrs period.

Control of the freeze dryer is by a 7” touch screen, it displays condenser temperature, product temperature and vacuum degree. As well as real-time drying curve and data.

Machine Structure

There are 3 modules in LGJ-20 freeze dryer: Base unit, Drying chamber and Vacuum pump. Send to user by pieces and can quickly assemble.

The base unit has a stainless steel upright vapor collector which can holds 5kgs of ice in 24hrs. Cooling by refrigerant direct expand. Lowest temperature -80C, suit for low eutectic point materials freeze drying.

Drying chamber install is by simply put it on freeze dryer base unit. There are 6 selections of drying chamber, from standard type to stoppering type and manifold type.

Vacuum pump connects to freeze dryer is by a vacuum hose and quick clamps.

Technical Specifications

Model LGJ-20 -80C
Condenser Temp. -80C
Condenser Capacity 5Kgs/24Hrs
Final Vacuum <5Pa
Power 1180w
Voltage 110V/220V
Size w/o Chamber W/520*D/750*H/720mm

Technical Description

  • Floor model with wheels.
  • Stainless steel, upright ice condenser in built.
  • 5kgs vapor collect capacity in 24hrs period.
  • -80C condenser temperature.
  • Condenser auto defrosting.
  • Side mounted defrost water drain valve.
  • Side mounted vacuum port.
  • Vacuum pump connects freeze dryer by hose and quick clamp.
  • Side mounted vacuum release valve.
  • 2-stage oil sealed rotary vane vacuum pump.
  • 7″ Full color touch screen monitor:
    • Real time display ice condenser & raw material temperature and vacuum degree.
    • Freeze drying curve and history curve display and exportable to U disk.


  • Stainless steel 316L ice condenser.
  • Coated condenser for corrosive materials.
  • Auto condenser defrosting.
  • Scroll type, oil free vacuum pump.
  • Hybrid vacuum pump.
  • Auto pressure control and vacuum regulator.
  • Inert gas backfill valve.
  • Eutectic point mesure suit.
  • Large capacity drying chamber type A with 6 shelves.
  • Manifolds for chamber C, D and T:
    • Adapt to round bottom flasks.
    • Adapt to wide mouth bottles.
  • Additional product temperature sensors up to 4.
  • Shelves heating function.
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