Model ES large capacity driers (ES 3, 5, 8, 5+5, 12, 20, 25)

ES dryer

The ES series of continuous vacuum driers

The ES series of continuous vacuum driers with capacities from 3 to 25 m3 for large carpenter works or timber yards looking for quality in drying coupled with high productivity.
These plants enclose all the technology and experience developed over twenty years of research into the application of the vacuum process in the treatment of wood.

The machine, operating at low temperatures, allows the timber to lose its water content without subjecting it to thermal changes which can cause cracking and warping.
The evaporated water which remains in suspension in the container keeps the drying material surface continuously humidified, avoiding in this way the formation of small cracks which, in other drying systems is quite frequent.
The humidity level which is necessary between environment and material is constantly maintained by a condenser which precipitates the steam in suspension.
The conditioning of the drying chamber is kept constant and programmed in advance using probes connected to the heating and condensing circuits and to the timber. This conditioning of the environment sets the transmigration process of the water through the cellular walls of the timber in motion. Passing from their inside walls towards the surfaces, from which the water is continuously evaporated until the desired drying conditions are reached.
The condensate which deposits at the bottom of the dry kiln, is periodically expelled in order to maintain the environmental conditions constant

In this way the following advantages are had:

  • QUICKNESS OF DRYING: owing to process without air and at low temperatures which enables hourly decreases in humidity never before reached by any other system.
  • PERFECT RESULTS due to: no cracks and no warping; no colour changes; no internal tension; unchanged strength of the dried material.
  • POSSIBILITY OF DRYING: very thick material and with a very high humidity level; such as planks and wood of all kinds, semi-finished items.
  • LOW OPERATING COSTS thanks to: low thermal loss; a rational use of thermal and electric energy; no need of manual operations.
  • LOW MAINTENANCE COSTS deriving from: simple and rational construction; simple automatic devices; anticorrosive materials.

Continuous vacuum drying ES: main characteristics

  • Autoclave:

    - steel coated with epoxy products for the treatment of wood without tannin.
    - AISI 304 stainless steel for drying wood containing corrosive agents (oak, chestnut, etc.)

  • Insulating covering
  • Carriage opening plate and wood holder.
  • External carriage guides.
  • Electric control panel with microprocessor for automatic running and stopping of drier.
  • Humidity control probes of a sample unit.
  • Stainless steel condensate tubes with two cooler fans.
  • Hot water circulation pump.
  • Four-way powered pump to be used to connect up to a hot water source.
  • Automatic discharge of condensate.
  • Aluminium electric heating plates.
  • Plate holder stand.
  • Oil lubricated vacuum pump.

Accessories on request:

  • Air-bag pressing system.
  • Disinfecting System against xylophagan using insecticide tablets.

To start up the machine all that is required is an electric socket and discharge well for the condensate.

Diagram and technical data ES