Lumber recovery and production rates of small-scale mobile sawmilling industries in northern Tanzania
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Date
2021
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Tanzania Journal of Forestry and Nature Conservation
Abstract
This study was carried out to quantify
technical efficiency of mobile sawmills by
determining the lumber recovery rates and
production rates of two mobile sawmills
namely as Wood-Mizer (band saw machine)
and Ding-dong (circular saw machine). The
study was conducted in Lushoto district,
located in the Northern part of Tanzania. The
results indicated that Wood-Mizer had
lumber recovery of 51.3% and production
rate of 0.64m 3 /hr., while Ding-dong had
lumber recovery rate of 35.2%, and
production rate 0.86m3/hr. Generally, results
have shown that both sawmills have
reasonable lumber recovery rates and
production rates irrespective of the
differences between the two, however
Wood-Mizer had great conversion efficiency
compared to the Ding-dong machine.
Considering the reduced supply of saw logs
for sustainable forest management, a
machine with high conversion efficiency is
highly encouraged than machine with high
speed of production, thus Wood-Mizer
stands to have more chances of applications
as compared to Ding-dong machine which
had relatively higher production rates.
However, we encourage further studies to be
conducted with diverse sets of factors
associated with economic aspects as well as
tree species to have more baseline
information on the performance of these two
mobile sawmilling machineries.
Description
Journal Article
Keywords
Wood Mizer, Ding-dong, Lumber recovery, Mobile sawmill, Productivity, Fixed-based