Answer:
1. Throughput Time = 9.2 days
2. Manufacturing Cycle Efficiency = 29%
3. 71% throughput time was spent in non value added activities.
4. Delivery Cycle Time = 25.8 days
5. New MCE = 57%
Explanation:
Given
Inspection time 0.7 days
Wait time 16.6 days
Process time 2.7 days
Move time 1.3 days
Queue time 4.5 days
1. The throughput time is calculated by adding all time except the wait time.
I.e.
Throughput time = Inspection time + Process time + Move time + Queue time
Throughput Time = 0.7 days + 2.7 days + 1.3 days + 4.5 days
Throughput Time = 9.2 days
2. Calculating the manufacturing cycle efficiency.
Manufacturing Cycle Efficiency is calculated by dividing value added time by throughput time.
Where the value added time = the process time = 2.7 days
And throughput time = 9.2 days (calculated in (a) above)
Manufacturing Cycle Efficiency = 2.7 days ÷ 9.2 days
Manufacturing Cycle Efficiency = 0.2934782609
Manufacturing Cycle Efficiency = 29.34782609%
Manufacturing Cycle Efficiency = 29%
3. Calculating the percentage of the throughput time was spent in non–value-added activities.
This is calculated by subtracting MCE calculated above from 100%
% throughput time = 100% - 29%
% throughput time = 71%
So, if 29% throughput time was spent in value added activities, 71% throughput time was spent in non value added activities.
4. Calculating the delivery cycle time.
This is calculated by adding the wait time to throughput time.
i.e.
Delivery Cycle Time = Wait Time + Throughput Time
Where Wait Time = 16.6 days and Throughput Time = 9.2 days
Delivery Cycle Time = 16.6 days + 9.2 days
Delivery Cycle Time = 25.8 days
5. Calculating new MCE.
Here, we'll used the same formula used in (2) above
i.e
Manufacturing Cycle Efficiency is calculated by dividing value added time by throughput time.
Where the value added time = the process time = 2.7 days
But throughput time will be calculated as
Throughput time = Inspection time + Process time + Move time (because of the elimination of all queue time)
Throughput Time = 0.7 days + 2.7 days + 1.3 days
Throughput Time = 4.7 days
So, New MCE = 2.7 days ÷ 4.7 days
New MCE = 0.5744680851
New MCE = 57.44680861%
New MCE = 57%
