APUNTS Operations Tema 4.2 &.docx

# How many pieces are produced during both working

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How many pieces are produced during both working shifts? Considering both production lines, we get 200 pieces per hour. Thus, we get 3.200 pieces in 16h (2 working shifts). How many pieces are packed during 3 working shifts? 100 pieces are packed in 0,75h. In other words, 133,33 pieces in 1h. Consequently, 3.200 pieces are packed in 24h (3 working shifts). Packaging operation starts one hour later than bread production. This creates an increasing inventory until the end of the 2 nd shift (67u x 16h = 1.072u). This maximum inventory is cleared during the 3 rd shift. Average WIP = 0,5 x 1.072 = 536 u. Which is throughput time of the whole process? Little’s law to packaging process: - Throughput rate = 100 pieces 0,75 h = 133,33 pieces/h - Throughput time = 536 pieces 133,33 pieces h = 4 h - Total throughput time = 1h for bread production + 4h of inventory + 0,75h for packaging process = 5,75h

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Synchronous manufacturing Systematic movement of information, materials and other resources, through all stages in a manufacturing process, in concert with market demand to achieve the company goals. Each production batch outputs identical sequence of items in terms of mix, rate and quantity.
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• Summer '17
• Mihalis Markakis
• Management, Cycle Time, Individual cycle time

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