TIMBER KILN DRYING PRACTICES IN SRI LANKA
H Mahinda Goonasekara
Timber Kiln Drying is a necessary practice, in order to achieve the law
( 6 -10 % ) wood moisture levels as required by high quality furniture
manufactures and other wood product exporting industries. Kiln drying
is gaining ground over air seasoning as it produces better, quality timber
irrespective of weather conditions are in a short period of time, causing
less degrade to timber.
Over 90% of the timber Kiln dryers available in Sri Lanka today are preoccupied
with drying rubber wood. All the modern Kiln dryers are available at large
rubber wood products exporting companies, and are used exclusively to
cater to their needs. About 25 smaller Kiln dryers are also drying mainly
rubber wood for larger rubber wood products exporting companies. There
are locally improvised kilns. These smaller Kilns seem to work well for
rubber wood especially in those kilns with steam or hot water heating
systems. Although they lack modern kiln control equipment, satisfactory
drying is achieved for rubber wood and albizia. Two major kiln types are
illustrated in this paper.
Much larger and more efficient timber kiln drying practices should be
developed in Sri Lanka for drying an increasing amount of rubber wood
products and for drying newly emerging timber resources (Pinus, Eucalyptus
etc.) from forest plantations.
Department of Forestry and Environmental Science,
of Sri Jayewardenepura,Sri Lanka. 1999. All rights reserved.