Question

Say you are given a process with 3 different sequential tasks, with average times as follows task 1 = 3.0 min, task 2= 2.5 min, and task 3= 1.2 min. Given Tr=0, and 400 units must be produced in a 10 hour shift answer the following:

a) What is the line balance (min/unit) Tc = Ts?

b) What is the balance efficiency of the line?

please show math

Answer 1

(a)

Here, since its a sequential task, the time required to produce each unit would be the maximum time taken by any machine. This is because after the first cycle which will take (3+2.5+1.2) 6.7 min in which first unit would be ready, every unit will come out of the process in 3 min.

So, line balancing time = 3 min/unit

(b)