Optimized Process with,
Agitated thin film evaporators

Shachi Engineering is one of the leading manufacturers and suppliers in India for industrial drying, cooling and evaporation solutions. At Shachi, we believe in making it easier for organizations to work and grow at international scale. In its 5 decade long existence, Shachi has executed 350+ projects in 5+ countries for over 225 clients. A team with more than 100 man-years of experience combined with infrastructure and documentation that meets global standards ensures that Shachi’s designs give an edge to the customer.

The company’s design process starts with developing an understanding of processes and requirements of the customer. Once these are studied, the appropriate drying, cooling, or evaporation solution is designed using advanced analysis using CFD technology. Additionally, we also provide a pilot plant to further accelerate development and testing of new processes. Shachi has proven expertise in developing fully automated plants with advanced control. Our solutions offer an edge to the customer in terms of cost-effective operations, performance, and maintenance.

Shachi’s thin film evaporators are built for optimized processing of the feed, reduction of wastage and offer maximum flexibility in the evaporation process Single system can be used to process different products under variable operating conditions due to customized design.

Agitation of the flowing product film under controlled conditions

Agitated thin film evaporators are typically used for fluids which are difficult to handle due to higher sensitivity and viscosity. Such an evaporator consists of tow key components: a jacketed shell and a rotor which rotates at high speed inside the shell. The feed is inserted into the mechanism at the top. Then, is is distributed along the shell via a distributor. After this, the rotor works to spread the feed into a thin film and agitate it further. The liquid is distributed in the form of a thin film on the heated wall where the heat transfer takes place.

The rotor encapsulated inside the heating shell wipes the fluid film from the walls. Hence this type of evaporator is also called as Wiped Film Evaporator. The rotor also serves to stabilize the liquid film on the heated surface at high rates of evaporation. This makes evaporation in the area of nucleate boiling possible without causing a breakup of the film. It also prevents forming of a vapour layer with insulating effect under the liquid film. The working principal of agitated thin film evaporators enables businesses to extremely high specific evaporation rates.

The vapors generated after heating flow concurrently are cleaned using an entrainment separator. The turbulence helps the thorough heat transfer and mechanically ensures that the entire mass undergoes the process to produce high yields from 30% to 80% concentration possible in a single pass. Thin film evaporators avoid the deposition of products. Intensive mixing process within the unit also serves to protect temperature-sensitive products from overheatin

Agitated Thin Film Evaporator for Fluids with Higher Sensitivity and Viscosity


  • Paints
  • Organic Chemicals
  • Pharmaceuticals
  • Tea
  • Citrus
  • Refining oil


Proven designs tested

with advanced analysis

Capability to design,

manufacture and commission dryer for any capacity

Strong process expertise with Less product wastage

process to produce high yields with world class quality

Experienced team of service engineers

to provide you continuous

with lesser cleaning and maintenance

variable operating conditions due to customized design