A GENERAL CASE FOR CONVEYOR BASED TRANSPORT AND STORAGE LOGISTICS
- Logistics is an active contributor to factory efficiency!
- The measure of factory efficiency is the Operating characteristic curve. I.e. the relation between throughput and cycle time.
- The coefficient of the O.C. curve is process variability and variability of work arrival rates to tools.
- Conveyors provide the least amount of variability of arrival rates
Effect of conveyors on the system operating curve according to queuing theory
While conveyors have been a natural solution for in-line factory logistics (Computer disk drive media and assembly, pharmaceuticals) recusive manufacturing process applications (semiconductors, flat panel displays) are special cases.
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