Evaporators, also known as concentrators, have been used for more than a century – in fact, since 1913.  

As well as multistage steam-heated evaporators, Bucher Merk also supplies plants with thermal or mechanical vapour recompression. PLC-based controls allow simple and user-friendly supervision. 


Evaporators with Mechanical Vapour Recompression (MVR) are operated with a high-pressure blower where the recompressed steam is used for the heating of the product. An MVR-evaporator can run on relatively low evaporation temperatures. Thanks to the low thermal load, concentrated products of superior quality can be produced.  

MVR-evaporators have considerably lower evaporation costs than compared to other designs. To evaluate this, it’s vital to consider the costs for steam, electricity and cooling water. Our specialists can advise you on the most economical solution for your project. 

Our broad experience in designing evaporators, means that Bucher is your ideal partner for the concentration of: 

  • Whole-milk and skimmed milk 

  • Whey 

  • Condensed Milk 

Technical data for milk evaporators: 

  • Type: Falling film evaporator 

  • Evaporation capacity: up to 50 t/h per unit 

  • Vapour recompression: mechanical or thermal