Question

The Pullman​ Mfg., Inc.​ three-station work cell illustrated in the figure below has two machines at station 1 in parallel.​ (The product needs to go through only one of the two machines before proceeding to station​ 2.)

Station 1Machine AStation 1Machine BStation 2Station 320 min/unit20 min/unit12 min/unit3 min/unit

The​ manager, Ms.​ Hartley, has asked you to evaluate the system if she adds a parallel machine at station

2.

​a) The throughput time of the new work cell is

35

minutes ​(enter your response as a whole​ number).

​b) The bottleneck time of the new work cell is

10

minutes per unit ​(enter your response as a whole​ number).

​c) If the firm operates

9

hours per​ day, 6 days per​ week, the weekly capacity of the work cell with the second machine at workstation

2

is

324

units​ (enter your response as a whole​ number).

​d) If the firm operates

9

hours per​ day, 6 days per​ week, the weekly capacity of the work cell without the second machine at workstation

2

is

units​ (enter your response as a whole​ number

Answer 1

Station 1:Machine A
20 min/unit		Station 2		Station 3
Station 1:Machine B		12 min/unit		3 min/unit
20 min/unit

2. The​ manager, Ms.​ Hartley, has asked you to evaluate the system if she adds a parallel machine at station

​a) The throughput time of the new work cell is 35 minutes ​(enter your response as a whole​ number).

Throughput Time = 20Min+12Min+3Min = 35Min

​b) The bottleneck time of the new work cell is 10 minutes per unit ​(enter your response as a whole​ number).

Bottleneck Time = 20Min/2 = 10Min at station 1

​c) If the firm operates 9 hours per​ day, 6 days per​ week, the weekly capacity of the work cell with the second machine at workstation 2 is 324 units​ (enter your response as a whole​ number).

Weekly capacity = (54hours*60Min/Hr)/10Min per units(Bottleneck time) = 324 Units

​d) If the firm operates 9 hours per​ day, 6 days per​ week, the weekly capacity of the work cell without the second machine at workstation 2 is units​ (enter your response as a whole​ number

Weekly capacity = (54hours*60Min/Hr)/12Min per units(Bottleneck time) = 270 Units