Dunder Mifflin Company has the following departmental manufacturing layout for one of its plants:

Wait time 10 minutes ------ Casting 12minutes

Move and wait time 15 minutes -------Grinding 6 minutes

Move and wait time 25 minutes ------- Drilling 10 minutes

Move and wait time 20 minutes -------Finishing 2 minutes

A consulting firm has recommended a value stream with the following manufacturing cell:

Casting 12 minutes ---- Grinding 6 minutes -----Drilling 10 minutes ----- Finishing 2 minutes

Required:

1. Calculate the total time it takes to produce a batch of 20 units using the traditional departmental manufacturing layout.

minutes (670)

2. Using cellular manufacturing, how much time is saved producing the same batch of 20 units? minutes

Assuming the cell operates continuously, what is the production rate? units per hour

3. Assume the processing time of Casting is reduced to 9 minutes, while the times of the other processes stay the same. What is the production rate now?

units per hour

How long will it take to produce a batch of 20 units if the cell is in a continuous production mode?

minutes