Check my wor DataSpan, Inc., automated its plant at the start of the current yea
ID: 2556875 • Letter: C
Question
Check my wor DataSpan, Inc., automated its plant at the start of the current year and installed a flexible manufacturing system. The company is also evaluating its suppliers and moving toward Lean Production. Many adjustment problems have been encountered, including problems relating to performance measuremernt. After much study. the company has decided to use the performarice measures below, and it has gathered data relating to these measures for the first four months of operations. eBook Month Throughput time (days) Delivery cycle time (days) Manufacturing cycle efficiency (MCE) Percentage of on-time deliveries Total sales (units) 92% 2060 1972 1871 180e 87% 84% 81% Management has asked for your help in computing throughput time, delivery cycle time, and MCE. The following average times have been logged over the last four months: Average Month (in d Move time per unit Process time per unit Wait time per order before start of production Queue time per urnit Inspection time per unit 9.7 23.8 e.9 0.4 2.8 25.2 9.5 2.7 28.0 5.3 1.1 9.5 2.5 30.3 6.6 e.9 1.1 Required 1-a. Compute the throughput time for each month. 1-b. Compute the dellvery cycle time for cach month. 1-C. Compute the manufacturing cycle efficlency (MCE) for each month. 2. Evaluate the company's performance over the last four months. 3-a. Refer to the move time, process time, and so forth, given for month 4. Assume that in month 5 the move time, process time, and so forth, are the sarme as in month 4, except that through the use of Lean Production the company is able to completely eliminate theExplanation / Answer
1-a.
Throughput time = Process time + Inspection time + Move time + Queue time
For month 1:
Throughput time = 0.7 + 3 + 4.2 + 0.9 = 8.8
For month 2:
Throughput time = 0.4+2.8+4.7+1.1= 9
For month 3:
Throughput time = 0.5+2.7+5.3+1.1 = 9.6
For month 4:
Throughput time = 0.5+2.5+6+0.9 = 9.9
1-b.
Delivery cycle time = Wait time + Process time + Inspection time + Move time + Queue time
For month 1:
Delivery cycle time = 23 + 0.7 + 3 + 4.2 + 0.9 = 31.8
For month 2:
Delivery cycle time = 25.2 + 0.4 + 2.8 + 4.7 + 1.1 = 34.2
For month 3:
Delivery cycle time = 28 + 0.5 + 2.7 + 5.3 + 1.1 = 37.6
For month 4:
Delivery cycle time = 30.3 + 0.5 + 2.5 + 6 + 0.9 = 9.9
1-c.
Manufacturing Cycle Efficiency (MCE) = Process time/Manufacturing cycle time = Process time/ Process time + Inspection time + Move time + Queue time
For month 1:
MCE = 3/8.8 = 0.340909 or 34.09 %
For month 2:
MCE = 2.8/9 = 0.31111 or 31.11 %
For month 3:
MCE = 2.7/9.6 = 0.28125 or 28.13 %
For month 4:
MCE = 2.5/9.9 = 0.252525253 or 25.25 %
Throughput Time
Delivery Cycle Time
Manufacturing Cycle Efficiency (MCE)
Month 1
8.8
days
31.8
days
34.09
%
Month 2
9
days
34.2
days
31.11
%
Month 3
9.6
days
37.6
days
28.13
%
Month 4
9.9
days
40.2
days
25.25
%
2.
The Throughput Time measure displays
Unfavorable
trends
The delivery cycle time-days measure displays
Unfavorable
trends
Manufacturing cycle efficiency- days measure display
Unfavorable
trends
******Answered first four sub parts.
Throughput Time
Delivery Cycle Time
Manufacturing Cycle Efficiency (MCE)
Month 1
8.8
days
31.8
days
34.09
%
Month 2
9
days
34.2
days
31.11
%
Month 3
9.6
days
37.6
days
28.13
%
Month 4
9.9
days
40.2
days
25.25
%