Question

Continuous Flow vs. Departmental Manufacturing Gumbrecht Company has the following departmental manufacturing layout for one of its plants: 12 minutes 6 minutes Wait time - 10 minutes Move and wait time - 15 minutes Casting Grinding Move and wait time - 25 minutes 10 minutes 2 minutes Move and wait time - 20 minutes Drilling Finishing A consulting firm has recommended a value stream with the following manufacturing cell: 6 minutes 12 minutes Grinding Casting Drilling Finishing 10 minutes 2 minutes

Answer 1

(in minutes) Departmental Continuous Flow S.no 10 Answer-3) Casting reduced to 9 minutes total time taken per product also reduced to ( 12-9) i.e 3 minutes new time under continuous = 30-3 = 27 minutes per unit productin rate = 60min / 27 min = 2.22 units per hour 12 27.-=- Particulars 1 wait time 2 Casting 3 Grinding 4 Drilling 5 Finishing 6 Move and wait time ( 15+25+20) 7 Total time per unit 20 units time = 20*27 min= 540 minutes 60 100 2000 600 8 Batch of 20 units production time (7) * 20 9 production rate per hour (60min / (7)) 0.6 2 units Answer-1) traditional departmental method to take 20 units production time = 2000 minutes Answer-2) Continuous method to take 20 units production time = 600 minutes Save time = 2000-600 =1400minutes Production rate for continuous method = 60/30 = 2 units per hour the process having highest time taking total process then this controls the production rate that's why the casting process controls the productionrate.