Spiral Dryer

Vertical spiral vacuum dryer - MVC

The Spiral Dryer is a vacuum dryer with sanitary design, maximized heated surface, applicable for all kind of wet products such as crystals, amorphous or even pastes which need to be completely discharged.

Working principle

Vertical spiral dryer, rotating at moderate speed to obtain an upwards flow of the product and a renovation of the product in contact with the heated walls.


  • Capacities from 50 to30.000 liters
  • Batch-wise operation under ultra vacuum
  • Maximum tightness, vacuum  levels under 1 Tor
  • Atmospheric operation  pressure – Optionally up to 3 bar(g)
  • Operation temperatures up to 200º C
  • Design according to ASME VIII div.1 - AD-2000 - EN-13445
  • Sanitary design cGMP, FDA validated
  • Internally mirror polished Ra ≤ 0.6 µm (Grit 360)
  • Mechanical simplicity, low maintenance need
  • Spiral mixer in cantilever execution, without any bottom support
  • Complete unload of the product
  • Very easy to clean and register
  • Repetitive mixings processes, reproducible and easy to scale up
  • CE marking according to the Safety for Machinery Directive 2006/42/CE

Accessories, options and special executions

  • Internally electro polished Ra ≤ 0.2 µm
  • Dust filter in the vacuum outlet
  • Heated shaft and spiral
  • Choppers for lump breaking
  • CIP-SIP systems, validatable by means of Riboflavin test
  • Sampling valve
  • Executions for sterile applications
  • Agitator with mechanical seal sterilizable
  • Floating nitrogen mechanical seals
  • Machine easy to segregate into a clean room /service room
  • Automatic loading and unloading system
  • Condensation, vacuum and heating system
  • Hardware and Software control unit
  • Pilot equipment available
  • ATEX execution on demand
  • ATEX 20/0 inner side, with official certificate

Typical applications and sectors

Food industry

  • Additives
  • Flavors & aromas
  • Colorants
  • Vitamin complements
  • Food preparations
  • Ready mix

Chemicals and general processes

  • Catalysts
  • Colorants
  • Evaporation
  • Pigments
  • Resins

Fine chemicals and pharma

  • API’s
  • Food additives
  • Amino acids
  • Caffeine
  • Preservatives
  • Diet food
  • Sweeteners
  • Essences and flavors
  • Pharmaceutical excipients
  • Saccharine
  • Pharmacy synthesis
  • Veterinary
  • Vitamins

Construction material

  • Carbon Steels
  • Anti-Abrasive Carbon Steels
  • Austenitic Stainless Steels - AISI-304L / AISI-316L / AISI-316Ti...
  • Superaustenitic Stainless Steels - 904L / AL6XN / 1.4529...
  • Duplex and Superduplex Stainless Steels - SAF-2205 / SAF-2507...
  • Other metals: Hastelloy C-22, Hastelloy C-276, Titanium Gr.2
E. Bachiller B, S.A.
Can Guasch,3
Pol. Ind. Levante
08150 Parets del Vallés
Barcelona - España
España, Technology for life
PYME Innovadora
MEIC - Ministerio de Economía,
Industria y Competitividad
E.Bachiller B., S.A., Todos los derechos reservados 2011 - 2019 ©