Laboratory Freeze Dryers up to 4kg

Freeze Dryer ALPHA 2- 4 LD plus

Total ice capacity 4 kg,

Ice condenser temperature  85°C.

Universal laboratory freeze dryer for routine applications; low ice condenser temperature allow drying of samples containing organic solvents (e.g. alcohols);  with new user friendly unit control "LYO Display LDplus":

LDplus (Lyo Display Plus) stands for a comfortable, easy-to-use and self-explaining user interface for controlling routine freeze drying processes, combining functionality and convenient operation:

• Graphic LC display with a clear layout showing the most important process data (ice condenser temperature, process time, section time and vacuum)

• Comfortable and self-explaining menu guidance in German, English or French language

• Vacuum control for optimization/reduction of process times (electromagnetic pressure control valve available as accessory)

• Conversion of product temperature and vacuum according to the vapour pressure curve above ice

• RS-232 communications interface (PC) available as an option, e.g. for process documentation software LyoLog LL-1

Suitable for drying in 12 or 24 round bottom flasks, wide neck filter bottles, ampoules and on 3 or 5 unheated shelves Ø 265 mm or 5 unheated shelves  Ø 360 mm, alternatively sealing device with 2 or 4 unheated shelves Ø 250 mm).

Figure: ALPHA 2-4 LDplus, process B, with 5 unheated shelves
Ø 360 mm

Figure: ALPHA 1-4 LSC, process B, with 10 heated shelves ø 200 mm and 12 connections for flasks

Freeze Dryer ALPHA 1- 4 LSC

Total ice capacity 4 kg,

Ice condenser temperature  55°C.

Universal freeze dryer with new intuitive understandable unit control LSC "Lyo-Screen-Contol":

• ¼ VGA-LC-Display

• Graphic orientated display with single button control ("turn and push")

• Clear structured display of relevant process data

• Storage of up to 30 freeze drying programs in tables (option)

• WINDOWS based process control and documentation software is available

Possible configurations:

Process A: freezing and drying in ice condenser chamber:

• 1 shelf ø 200 mm

• 1 shelf with sealing device ø 200 mm

• Temperature range approx.  -30°C ... +50°C

Process B: freezing separately, drying outside of ice condenser chamber:

• 12 or 24 round-bottom-flasks

• 5 or 10 heated shelves ø 200 mm

• 5 heated shelves ø 375 mm

• 2 or 4 heated shelves ø 250 mm with sealing device

Freeze Dryer ALPHA 2- 4 LSC

Total ice capacity 4 kg, 

Ice condenser temperature –85°C.

Universal freeze dryer with new intuitive unit control LSC "Lyo Screen Control":

• ¼ VGA-LC-Display

• Graphic orientated display with single button control ("turn and push")

• Clear structured display of relevant process data

• Storage of up to 30 freeze drying programs in tables (option)

• WINDOWS based process control and documentation software is available

Possible configurations:

Process A: freezing and drying in ice condenser chamber:

• 1 shelf Ø 200 mm

• 1 shelf with sealing device Ø 200 mm

• Temperature range approx. -40°C ... +50°C

Process B: freezing separately, drying outside of ice condenser chamber:

• 12 or 24 round-bottom-flasks

• 5 or 10 heated shelves ø 200 mm

• 5 heated shelves ø 375 mm

• 2 or 4 heated shelves ø 250 mm with sealing device

Figure: ALPHA 2- 4 LSC, process A, with 1 temperature-controlled shelf Ø 200 mm with sealing device

Freeze Dryer EPSILON 1- 4 / 2- 4  

Laboratory-/Pilot Freeze Dryer with a capacity of 4 kg,

Ice condenser temperature:
 55°C (EPSILON 1- 4) bzw.
 80°C (EPSILON 2- 4)

Universal system with one, temperature controlled shelf. The ice condenser is placed directly within the drying chamber (single-chamber system), thus fast process times can be realized.
Unit operation will be done via control system LSC "Lyo Screen Control":

• ¼ VGA-LC-Display

• Graphic orientated display with single button control ("turn and push")

• Clear structured display of relevant process data

• Storage of up to 30 freeze drying programs in tables (option)

• WINDOWS based process control and documentation software is available

Possible configurations:

• Freezing and drying directly on one temperature controlled shelf 270 x 400 mm,
  Temperature range:
  -40°C to +60°C (EPSILON 1-4)
  -70°C to +60°C (EPSILON 2-4)

• Stoppering device for vials with connections for 4 flasks available as option