Laboratory Freeze Dryers up to 4 kg
Freeze Dryer ALPHA 1-4 LDplus
Total ice capacity 4 kg,
Ice condenser temperature –55°C.
Laboratory freeze dryer for routine applications with new user friendly unit control LDplus (Lyo Display plus):
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 in12 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 1-4 LDplus, process B, with 3 unheated shelves
Freeze Dryer ALPHA 2-4 LDplus
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 LDplus (Lyo Display plus):
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
Freeze Dryer ALPHA 1-4 LSCplus
Total ice capacity 4 kg,
Ice condenser temperature –55°C.
Universal freeze dryer with new intuitive understandable unit control LSCplus (Lyo Screen Contol plus):
- coloured touch screen with mimic diagram
- multi language user interface
- "one screen"-summary of set values
- graphical summary of programs
- program templates for different products
- detailed message informations
- different scale units °C/°F, mbar/hPa
- access-protection by password
- integration in network structures
- PC based simulation available
- USB-process recording and documentation via LyoLog software (optional)
- SCADA-System LPCplus available as Windows software (optional)
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

- Figure: ALPHA 1-4 LSCplus, process B, with 10 heated shelves ø 200 mm and 12 connections for flasks
Freeze Dryer ALPHA 2-4 LSCplus
Total ice capacity 4 kg,
Ice condenser temperature –85°C.
Universal freeze dryer with new intuitive unit control LSCplus (Lyo Screen Control plus):
- coloured touch screen with mimic diagram
- multi language user interface
- "one screen"-summary of set values
- graphical summary of programs
- program templates for different products
- detailed message informations
- different scale units °C/°F, mbar/hPa
- access-protection by password
- integration in network structures
- PC based simulation available
- USB-process recording and documentation via LyoLog software (optional)
- SCADA-System LPCplus available as Windows software (optional)
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 LSCplus, 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) resp. –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

- Abbildung: Epsilon 2-4 LSC


