Average cycle time for element

Answer to question #a:

Average cycle time for element 1 = ( 0.44 + 0.5 + 0.43 + 0.45 + 0.48 +0.46) / 6 = 0.46

Average cycle time for element 2 = ( 1.5 + 1.54 + 1.47 + 1.51 + 1.49 + 1.52)/ 6 = 1.505

Average cycle time for element 3 = ( 0.84 + 0.89 + 0.77 + 0.83 + 0.85 + 0.80) /6 = 0.83

Average cycle time for element 4 = ( 1.1 + 1.14 + 1.08 + 1.2 + 1.16 + 1.26)/6 = 1.156

Answer to question # b:

Normal time for each element = Average cycle time for the element x Performance rating %/100

Thus Normal time for each element as follows :

Element Average cycle time Performance rating % Normal time
1 0.46 85 0.46 x0.85 = 0.391
2 1.505 100 1.505 x 1 = 1.505
3 0.83 110 0.83 x 110/100 = 0.913
4 1.156 95 1.156 x 95/100 = 1.0982

Answer to question #c :

Standard time for each element = Normal time ( 1 + Allowance factor in % /100)

Here, Allowance factor = 15%

Therefore Standard time = 1.15 x Normal time

Thus Standard time for each element and standard time for the task ( i.e. sum of all 4 elements ) is as follows :

Element Normal time Standard time
1 0.391 0.391 x 1.15 = 0.449
2 1.505 1.505 x 1.15 = 1.730
3 0.913 0.913 x 1.15 = 1.05
4 1.0982 1.0982 x 1.15 = 1.263
Standard time for the task: (0.449 + 1.730 + 1.05 + 1.263) = 4.492

STANDARD TIME FOR THE TASK = 4.492

Answer to question #d

Takt time will be defined as “Net available time for production / Number of units to be produced”

Since it is a 8 hour shift, net available time = 60 x 8 = 480 minutes

Number of parts to be produced = 110

Therefore, Takt time = 480/110 = 4.363

TAKT TIME = 4.363 MINUTES