Freeze Dryer

Industrial freeze dryer retains aroma, improves appearance and taste because freeze drying takes place at a low temperature which minimizes heat damage and retains volatile components (aroma). It also increases the shelf life of the dried product as compared to standard drying practices. Freeze-drying involves dehydration of food products at low temperature and pressure. As a result only the moisture is removed, leaving the molecular structure intact. The end product is light in weight with least or no change in volume. Worldwide freeze-drying technology is considered as the ultimate amongst all other dehydration methods. Hence this technique is currently being used for the production of instant coffee, instant tea, fruit pulp and other heat sensitive products.

This type of dryers are mostly used in pharmaceutical companies. This is a batch type dryer heated by steam (Indirect). This dryer can also be used as a sterilizer. Recovery of solvent from powder is possible using such dryer.

Versatile Drying method (Batch or Continuous Type) used for drying for various types of Liquid concentrates efficiently. It can also reduce the energy requirement of a spray dryer plant when used as a second stage dryer for production of instant quality powders.

Fluid bed dryer comprises of a top fluidizing chamber & a bottom air distribution chamber separated by a specially designed perforated plate.
The feed of wet materials is dried by intimate contact with hot air when the material is in a fludised state. A vibrating mechanism can be attached to give a forward motion cum agitation to the product at a controlled rate. It is also used as second stage dryer for many products.

In direct heat Rotary Dryers a continuous feed of wet particulate material is dried by contact with heated air, while being transported along the interior of a rotating cylinder / rotating shell acting as the conveying device and stirrer.

SSP offers Rotary Dryers in co-current (Parallel) and counter-current operation. In the former the wet material is exposed to the hottest air which enables heat sensitive or sticky material to be dried successfully.

In counter-current operation, dried material is exposed to the hottest air helping to achieve very low moisture content. The hot gas may enter at a very high temperature as high as 16000C.