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Christ Alpha 1-4 LDplus -55 °C Alpha 2-4 LDplus -85 °C - 4kg Freeze Dryers

Product Details

Base model includes
Compact, general-purpose tabletop unit for effective lyophilisation of specimens in your everyday lab activities. The LDplus user interface makes the work very easy.  You can choose from a wide range of configurations to adapt the freeze dryer optimally to your specific needs. Condenser temperature of -85° C for specimens containing solvents or with low eutectic points.

Drying manifold for eight round-bottom flasks, wide-neck bottles or ampoule distributors

The accessories listed are the most common products required by our customers for other accessories and more detailed information please contact our freeze drying experts at info@sciquip.co.uk or 01939 234222

  • Condenser capacity: 4 kg
  • Condenser temperature: -55 °C
  • Condenser performance 4kg/24 hours
  • Standard bench-top system
  • 3 or 5 unheated shelves, 12 ports
  • -55C for drying of aqueous products
  • -85C for drying solvents with low eutectic points
  • Display of vacuum, sample temperature, ice condenser temp, run time
  • Vacuum control option
  • RS232 communication port
  • Numerous configurations available
  • Attachments for ampoules, round bottomed flasks, wide-necked filter bottles
  • Complete system includes vacuum pump
Controller LDplus
Method  Double-chamber
Max. connections up to 24

Technical Specifications

Alpha 1-4 LD plus Alpha 2-4 LDplus
Ice condenser
  • Max. capacity
  • Max. performance
  • Temperature
  • Chamber volume
  •  4 kg
  • 4 kg/24 h
  • Approx. –55 °C
  • Approx. 6.5 L
  • 4 kg
  • 4 kg/24 h
  • Approx. –85 °C
  • Approx. 6.5 L

Product temperature

with freezing inside the ice condenser chamber

 

Approx. –20 °C

 

Approx. –35 °C

Refrigeration system 0.51 kW 2 x 0.51 kW
Dimensions of basic unit W: 390 mm H: 415 mm D: 540 mm W: 390 mm H: 415 mm D: 540 mm
Weight Approx. 42 kg Approx. 55kg

Supply voltage (other voltages available on request)

230 V / 50 Hz

220 V / 60 Hz

208 V / 60 Hz

230 V / 50 Hz

220 V / 60 Hz

208 V / 60 Hz

The given data applies to the base unit within the ambient temperature range of +10 °C to +25 °C.

Subject to change without prior notice

Downloads

Customer Reviews

University of Glasgow Review by Chemical Biology & Medicinal Chemistry
We are really pleased with our Christ Alpha 2-4LD freeze dryer. It is an “easy to use” machine and just does the job that you want it to do. A nice feature of this freeze dryer is that it has a low ice condenser temperature (-85 °C), meaning that you do not need to setup a cold trap between the freeze dryer and pump when you have samples containing organic solvents.

We are a medicinal chemistry group from the university of Glasgow and mostly use this machine to freeze dry peptides or peptidic compounds. Since we design and make biologically active compounds we need to be sure that our “future medicines” are completely dry for testing purposes. And so, we really need a freeze dryer that is reliable and excellent in its job. That’s why we use the Christ Alpha 2-4LD freeze dryer

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Buying Options

Product Code Description List Price
101541 Christ Alpha 1-4 LDplus Freeze Dryer, -55C ice condenser , 4kg ice capacity POA Enquire
101542 Christ Alpha 2-4 LDplus Freeze Dryer, -85C ice condenser, 4kg ice capacity POA Enquire

Accessories

Listed are the most common accessories required by our customers for other accessories & more detailed information please contact our freeze drying experts at info@sciquip.co.uk or 01939 234222
Drying chambers & Accessories for drying in flasks & ampoules
Product Code Description Suitable For List Price
121401 Acrylic cover, diameter 300 mm POA Enquire
121411 Cover made of safety glass, resistant against solvents, diameter 300 mm POA Enquire
121500 Acrylic chamber, diameter 300 mm, internal height 305 mm, without connections for rubber valves POA Enquire
121505 Acrylic chamber with transparent splinter shield foil, diameter 300 mm, interior height 470 mm, without connections for rubber valves POA Enquire
121509 Acrylic chamber, diameter 300 mm, internal height 600 mm, recommended for freezing of microtiter plates POA Enquire
121535 Connection ring for stainless steel chamber 12 connections for rubber valves 121860, including adaptor ring, diameter 300 mm POA Enquire
121537 Stainless steel chamber diameter 300, mm inner height 295 mm POA Enquire
121538 Stainless steel chamber diameter 300 mm, inner height 460 mm POA Enquire
121550 Acrylic chamber with transparent splinter shield foil, diameter 300 mm, internal height 295 mm, with 12 connections for rubber valves 121860 POA Enquire
121555 Acrylic chamber with transparent splinter shield foil, diameter 300 mm, interior height 460 mm, with 12 connections for rubber valves 121860 POA Enquire
121850 Additional acrylic chamber, diameter 300 mm, internal height 295 mm, with 12 connections for individually controllable rubber valves 121860 POA Enquire
121860 Rubber valve for connection of freeze drying flasks POA Enquire
121870 Distributor with 15 connections for ampoules POA Enquire
121891 Filter insert for rubber valve part no. 121860, POA Enquire
Accessories for drying on shelves, trays & vials
Product Code Description Suitable For List Price
112279 Shelf Ø 265 mm with rim and stand 33 mm height, unheated requires base plate 120900 POA Enquire
120900 Base plate for freeze dryers Alpha 1-4 LDplus, Alpha 2-4 Ldplus POA Enquire
120902 rack with 5 shelves with rim, made of aluminium, diameter 265 mm, unheated, requires base plate 120900 POA Enquire
120903 rack with 3 shelves with rim, made of aluminium, diameter 265 mm, unheated, requires base plate 120900 POA Enquire
120959 Shelf with rim, made of aluminium, diameter 250 mm, unheated, for sealing device part no. 121020 and 121021 requires base plate 120900 POA Enquire
121020 Sealing device with one shelf with rim, made of aluminium, diameter 250 mm, without temperature control requires base plate 120900 POA Enquire
121021 Sealing device with one shelf with rim, made of aluminium, diameter 250 mm, without temperature control requires base plate 120900 POA Enquire
127202 Rack to accommodate 10 (11) microtiterplates clear distance 20 mm, requires base plate 120900 POA Enquire
127203 Rack to accommodate 1 Deep-Well-Plate or 1 Microtiter plate, distance 50 mm, requires base plate 120900 POA Enquire
127205 Rack to accommodate 10 Deep-Well Plates, clear distance 50 mm, requires base plate 120900 POA Enquire
Large Chamber Accessories for Alpha 1-4/2-4LD
Product Code Description Suitable For List Price
112229 Rack with 5 shelves, made of aluminium, diameter 360 mm, unheated, distance between the shelves 70 mm requires base plate 120900, chamber 121517 & connector 120901 POA Enquire
120901 Flange connection for using acrylic chambers with a diameter of 457 mm POA Enquire
121517 Acrylic chamber with transparent splinter shield foil, diameter 457 mm, internal height 460 mm POA Enquire
Vacuum & pressure control, pump hoses
Product Code Description Suitable For List Price
125471 Vacuum sensor VSP 3000 with integrated measuring device for direct connection to freeze dryers POA Enquire
125476 "Chemistry-resistant vacuum sensor TPR 281 with integrated measuring device for direct connection to freeze dryer " POA Enquire
125478 Vacuum sensor A VSP 63 MV with integrated measuring device for direct connection to freeze dryers POA Enquire
125702-B Vacuum hose incl. standard flange connections DN 16/25 POA Enquire
125704 Vacuum hose incl. standard flange connections DN 25/25 POA Enquire
125910 Electromagnetic pressure control and stop valve POA Enquire
125920 Manual stop valve with standard flange POA Enquire
125932 Valve to release vacuum with tubing connection and pipe bend POA Enquire
Product Code Description List Price

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