This independent study in Production Efficiency Improvement of Limestone
Crushing Plant used data from Sila Maeta Crushing Plant, Lampang Province.The
purpose of this study was to increase efficiency of limestone crushing plant using
industrial engineering techniques
The study collected the data by using check sheets and then calculated using Overall
Equipment Efficiency (Overall Equipment Effectiveness) method of jaw crusher. There
was an improvement to analyze the real cause of the problems by using Parato Diagram.
The causes were analyzed by using Fish Bone Diagram. Main causes in time loss derived
from shutdown time breakdown time set up and adjustment time. Breakdown time was
caused by crushing plant’s running problems and running machine wastefully in energy.
Solution to the problems are taking good care of crushing plant providing trainings for
operators improving the road’s condition in front of plant’s area and checking machines
daily. After that data collection and OEE calculation would be processed and analyzed
The study’s results and the recommendation were passed to concerned personnel.
The summary showed the increase of OEE about 19.12% and the decrease of time loss
about 50.43 minutes per day. At first the value of OEE was below standard. It was found
that all that machines were not used at their full efficiency. There was so much time loss.
Therefore it is importance to decrease time loss in manufacturing process and to bring the
increase of efficiency improvement of this limestone