Christ Alpha 3-4 LSCbasic -105°C Freeze Dryer - 4kg

Base Model

Special system for safe freeze drying of organic samples containing solvents

The condenser temperature of the Alpha 3-4 LSCbasic is –105 °C.  The ice capacity is 4 kg.  

The specialized system is available in two different packet configurations. Meets increased safety requirements for commonly flammable solvents.

Alpha 3-4 LSCbasic is available from 01.07.18.

Freeze drying is not only used for water-based materials. Typical examples include HPLC fractions with organic and inorganic solvents, such as acetonitrile, TFA and other alcohols, or other products with t-butanol, DMSO, etc.

Increased safety considerations require special system configurations:

  • Safe: No sources of ignition, such as commonly used Pirani vacuum sensors
  • Durable: High-quality materials for excellent chemical resistance, such as 316L stainless steel for the condenser, manifolds, drying chamber, and solvent-resistant seals
  • High-performance: Internal condenser; most solvents are frozen or liquefied in the chamber at -105 °C
  • Solvent-resistant hybrid vacuum pump (chemical-resistant membrane plus rotary vane pump)
  • Connection for inertization during loading and defrosting


The Alpha 3-4 solvent packet is equipped with the user-friendly LSCbasic control system, for safe and successful freeze drying, day after day.

Product Specifications
Ice Condenser Capacity 4 kg
Ice Condenser Temperature -105°C
Ice Condenser Performance  2.5 kg / 24 h
Controller LSCbasic
Method Double Chamber 
Dimensions of Base Model (WxHxD) 780 x 415 x 540 mm
Weight  80 kg

•  Solvent-resistant materials
•  Vacuum-chemical hybrid pump with filter
•  Stainless steel vacuum hose
•  Capacitive vacuum measurement probe
•  Vacuum controller for reducing drying times by up to 40%
•  Connection for inertization (e.g., for nitrogen)
•  Drain valve
•  Manifold with 12 chemical-resistant valves for flasks

Technical Specification
Alpha 3-4 LSCbasic

Ice Condenser 

• Max Capacity

• Max performance 

• Temperature (approx.)

• Chamber Volume (approx.)

4 kg
2.5 kg / 24 h
–105 °C
11 litre
Chiller Unit 1 x 0.52 kW / 1 x 0.75 kW
Refrigerant CFC - Free
Dimensions of the base machine (WxHxD)  780 x 415 x 540 
Weight (approx.) 80 kg
Noise Level in dB (A) 54
Elecrtical Connection 230 V / 50Hz
Defrost Function Standard
Venting Valve Standard


• Ice Condenser (display)

• Product Using the Vapour Pressure Curve 


Vacuum Sensor

• Pirani

• Capacitive

Vacuum Controller  Standard


• Serial Interface 

• Ethernet


• LyoLogplus

• LPCplus


The data provided refer to the base unit for ambient conditions of +10 °C to +25 °C. Subject to technical changes

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Product Code Description List Price Offer Price
102372 Christ Alpha 3-4 LSC Basic Freeze Dryer, -105°C 4kg POA POA ENQUIRE
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