Freeze Dryer

A lyophilizer is an essential instrument in the pharmaceutical and food industry, it is a very useful equipment when you want to conserve products, because it allows to remove moisture through cold drying.

The material to be lyophilized is introduced into the equipment, where there are very low temperatures, usually below - 40ยฐC. With a vacuum pump, the pressure in the equipment is reduced. Having lowered the temperature the organic water or solvent freezes. Subsequently, when the pressure is lowered, the water that is in solid state is steamed into the process known as sublimation.

Types of Lyophilizers a Laboratory may need

Benchtop Laboratory Freeze Dryer

Parts of a lyophilizer

  • Dry chamber or freeze-drying chamber: is the place where the substance or product to be lyophilized is placed. It can present different shapes with compartments where sublimation takes place, passing the water from solid to steam. The closure is airtight and is worked under vacuum.
  • Condenser with cooling circuit: This device communicates with the dry chamber and condenses the steam that is generated in the sublimation. A coolant keeps it at a lower temperature than the dry chamber (-50 to -125 ยฐC).
  • Vacuum System: The vacuum is generated by an oil pump working on 10-2 mbar connected to a trap so that no vapors from the solvent will pass into it. The vacuum system first removes air from the dry chamber when starting the freeze-drying process, and then helps the sublimation.

Vertical Laboratory Freeze Dryer

Freezers are highly sophisticated equipment, and thanks to technological advances there is a great variety, which are perfectly adapted to the field of application in which they are used. We have freeze-driers that are used in the food industry, whether it's to make space food, military food or dehydrated food. As well as to make dairy products. There are also lyophilizers used in the pharmaceutical industry to conserve drugs and vaccines. As well as there are freeze dryers that are employed in the recovery of documents damaged by water.

Freezers can also be grouped by size into laboratory units, pilot units for process development and expansion, and larger production units. Likewise, freeze-driers can also be classified according to the type of product chamber:

  • Lyophilizers in which the product is usually pre-frozen and in bottles,
  • Freeze-driers with shelves where the product is placed on a tray or directly on a shelf.
  • Freezers with units that combine with both drying options.

In Kalstein you can find the   Ideal Lyophilizers for your Laboratory

There are countless models, so it is normal that you do not know which Freeze Dryers to buy to meet your needs. At Kalstein, we evaluate you to find what you're looking for.

T Type Benchtop Lab Freeze Dryer YR05189-1 // YR05189-3

Freeze dryer is widely used in medicine, pharmacy, biology research, chemical industry and food production...


T Type Lab Freeze Dryer YR05197-1

YR05197-1 Freeze Dryer is suitable for the preservation of bacteria, fungi and other microbial strains...


T Type Vertical Lab Freeze Dryer YR05193-1

Freeze dryer is widely used in medicine, pharmacy, biology research, chemical industry and food production etc...


Vertical Normal Lab Freeze Dryer YR05190

standard type vacuum freeze dryer is suitable for experiment in laboratory. Freeze dryer is widely used in medicine...


Our Best Selling Freeze Dryers

  •  CFC Free refrigeration
  • LCD display drying curves, English interface
  • Big opening of condenser, condenser with pre-freezing function
  • low noise compressor, good efficiency,long service life
  • Condenser and operation panel are all stainless steel
  • Drying Chamber with organic glass is safe and visible
  • Shelf and tray are stainless steel, tray spacing can be customized
  • Small volume , easy and convenient operation
  • Nitrogen valve is optional
  • Eutectic point test device is optional
  • Communication interface is optional
  • Cascade refrigeration is optional , applied for -80โ„ƒ device

Analysis of the best Lyophilizers for your Laboratory

      What is a freeze dryer?

The lyophilizer is the apparatus used to carry out lyophilization. It consists of the following parts: dry chamber or lyophilization chamber: it is the place where...


What technology does a lab freeze-drier use?

Freeze-drying is a laboratory process that has novel applications in the pharmaceutical and biotechnology ...


Lyophilizers: What are its parts and maintenance?

The freeze-drier is a laboratory equipment used to carry out the freeze-drying process, which consists of ...


Why is it necessary to use a lyophilizer in a laboratory?

A lyophilizer is a laboratory instrument used to carry out the process of lyophilization, since this equipment ...


Catalog of models of Freeze Dryers on sale


Guides to becoming an expert in Freeze Dryers

At Kalstein we are manufacturers of the highest quality lyophilizers and have the best technology on the market, we leave you some blogs to know more about our product.

What are the criteria for selecting your ideal lyophilizer?

A lyophilizer is a laboratory instrument used for lyophilization, that is to say, it is used to remove moisture from a product...

What A Laboratory Freeze-Dryer Is And What It Is For

A laboratory freeze-drier is a commonly used tool to preserve biological material, usually from pharmaceuticals...

Developments in Laboratory Freeze Dryers

A lyophilizer is a device used in the laboratory to lyophilize or remove liquid water from an organic compound or...

What is a food freeze dryer?

Freeze-drying is a technique for the preservation of food that is based on the drying of certain compounds by means of the sublimation of the water contained in them...

Frequently Asked Questions about Freeze Dryers

To know the price of Freeze Dryers we invite you to send us an email with your request through the contact form.

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