Ritti and Grewe (2007) described
sawmill as a facility where logs are cut into lumber or timber.
sawmill as a facility where logs are cut into lumber or timber.
Dutchman (2000) described sawmill as
the process of applying a pitman arm into a windmill, which converted a turning
motion up and down ward motion. He further built the earlier sawmill in 1594
prior to the invention of sawmill, broad were reviewed, planned or more often
saw by two men with a whipsaw, using saddle blocks to hold the logs and the saw
put for the pitman who worked below the expectation due to showing in sawing
woods.
the process of applying a pitman arm into a windmill, which converted a turning
motion up and down ward motion. He further built the earlier sawmill in 1594
prior to the invention of sawmill, broad were reviewed, planned or more often
saw by two men with a whipsaw, using saddle blocks to hold the logs and the saw
put for the pitman who worked below the expectation due to showing in sawing
woods.
Lumber Manufacturing Wood Product
Association (2002) state that, the early time sawmill simply adapted to the
whipsaw using mechanical power, generally driven by a water wheel to speed up
the process. The pitman’s like a crankshaft but in reverse, generally, the saw
blades. The process of sawing woods in sawmills includes the following:
Association (2002) state that, the early time sawmill simply adapted to the
whipsaw using mechanical power, generally driven by a water wheel to speed up
the process. The pitman’s like a crankshaft but in reverse, generally, the saw
blades. The process of sawing woods in sawmills includes the following:
i.
Debarking which removes the back of the logs.
ii.
The head saw, head rig or primary saw breaks, the log into
cants (unfinished to be further processed) and fitness.
iii.
Depending on the species and quality of the log, the cants
will either be further broken down by a ripsaw or a gang edger into multiple
fitches and boards
iv.
Edging will take the fitches, the trimming off all irregular
edges leaving four side lumbers.
v.
Trimming square the ends at a typical lumber lengths
vi.
Drying removes naturally occurring moisture from the lumber.
This can be done with kilns or air dried.
vii.
Planning smooth’s the surface of the lumber leaving a
uniform width and thickness (Retti et al.,
2007)