John Morris Scientific offers a range of benchtop freeze dryers that are available with system capacities from 1L, 2.5L, 4.5L and 6.5L from Cole-Parmer. Upon request with our technical staff we are able to offer console sizes up to 18L in capacities.
Our range in freeze dryers include variations in refrigerator collectors that cool to -50°C and -84°C as well as PTFE-coated models for more corrosive compounds. Our freeze dry systems are designed to handle the lyophilization needs of research and pilot plant laboratories, with the lower temperature collectors ideal for freeze drying samples with low eutectic temperature.
Freeze drying involves the removal of water or other solvents from a frozen product. Freeze dryers carry out three steps for this process - prefreezing, primary drying and finally secondary drying. Freeze drying has been used in a number of applications however it is most commonly used in the pharmaceutical industry, for example stabilization of living material such as microbial cultures, preservation of animal specimens and the concentration and recovery of reaction products. Once freeze dried properly, products do not need refrigeration and items can be stored at ambient temperatures.
To complete your freeze drying systems, you will require the following components:
Either accommodates sample shelving or provides flexible port connectivity for up to 12 or 16 sample flasks. Shelves maybe used for either bulk samples or bottles and are available with heaters to accelerate the freeze drying process.
For parallel lyophilization of small sample volumes and products with high eutectic and collapse temperatures. Sample is prefrozen and then attached to the manifold with vacuum so that the product is not warmed. This process allows for samples of different makeup and size to be attached to the system, and for the sample to be removed from the manifold as the product is dried.
Stoppering Tray Dryer
For batches of small vessels or bulk sample on shelves. Ideal for preparing a large quantity of vials containing the same sample. The samples can be prefrozen directly on the shelf of the tray dryer. This method ensures that all samples are handled alike, also allowing sample vials to be vacuum sealed in situ at the same time and under the same conditions.
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Typical Application for freeze dryers
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