Question

Hart manufacturing operates an automated steel fabrication process. For one operation, hart has found that 45% of the total throughput (manufacturing cycle) time is spent on non-value added activities. delivery cycle time is 12 hours, waiting time during the production process is 3 hours, queue time is 2 hours, and inspection time is 1.2 hrs.The manufacturing cycle efficiency for this operation is:

1) 55
2) 45
3) 6.6 hrs
4) 5.4 hrs

Answer 1

The Manufacturing Cycle Efficiency for Hart manufacturing's operation is calculated as 55% of the total manufacturing cycle time, which equals 6.6 hours. This is the time spent on value-added activities in the 12-hour delivery cycle.

Step-by-step explanation:

The student is asking for the calculation of the Manufacturing Cycle Efficiency (MCE) for Hart manufacturing's steel fabrication process. Manufacturing Cycle Efficiency is calculated by dividing the value-added time by the total throughput time.

For Hart manufacturing, the value-added time will be the total throughput time minus the non-value added activities. Given that 45% of the total time is spent on non-value-added activities, 55% is for value-added activities. Since the total manufacturing cycle time (delivery cycle time) is 12 hours, the value-added time will be 55% of these 12 hours.

Value-Added Time = Total Manufacturing Cycle Time x Value-Added Time Percentage
Value-Added Time = 12 hours x 55%
Value-Added Time = 6.6 hours

The manufacturing cycle efficiency (MCE) for this operation is therefore 6.6 hours, which is option 3 in the choices provided.