Hot-Oil Impregnation

The WTT - Osmose process combines an oil treatment with linseed oil with a subsequent drying of impregnated wood.

The autoclave with the wood packet is kept under vacuum and filled with hot linseed oil. The wood is dried and the circulating oil is sucked into the wood. The absorption quantity is thus controlled through the vacuum. The linseed oil seals the top surface of the wood and improves dimensional stability through less moisture absorption. The tendency to cracks in the wood that one often sees is also avoided in this process.

The linseed-treated timebr is available in different colours and with different additional features like, e.g. with UV stabilizer and protected against mould.
The fields of application are, e.g. wooden houses, playground equipment, terrace panelling, exterior panelling, protection against noise and for privacy, balcony panelling, window and door elements and carports.

WTT Hot-oil plant

Fully insulated stainless steel autoclave

Process control, fully automatic

Heat exchanger, for heating

Quick closure of autoclave door, hydraulic, fully automatic

Recovery and precipitation of the impregnated water during the final drying process

Multi-colour system with heated storage tanks, optional

Tilting device, for better colouring and drying of the wood surface, optional

Automatic autoclave cleaning system, optional

Automatic charging and unloading system, optional

Automatic transport system, optional

Plate exchanger