2. Without Setup Time
Press 420 min x 90% efficiency / 640 units =
378 min / 640 units = .590625 Pierce & Form 420 min / 640 units = .65625 Finish Grind 420 min /640 units = .65625 3. Process Step 1 production lead time 5 days
Process Step 2 production lead time 3.5 days
Process Step 3 production lead time 5.2 days
Process Step 4 production lead time 2.3 days
4. 60 seconds is the processing time of this manufacturing cell
5. Press 7200 seconds/1000 = 7.2 seconds
7.2 seconds + 3 seconds = 10.2 seconds is the time needed to produce 1 part
10.2 seconds X 1000 = 10,200
10,200 seconds / 60 = 170 minutes to produce 1000 units
This would leave 208 minutes of idle time.
420 minutes per day X 90% efficiency = 378 minutes available
With 378 minutes available (22680/10.2= 2223) 2223 units can be produced per day.
Pierce & Form 1800 seconds/1000= 1.8 seconds 1.8 seconds + 22 seconds = 23.8 seconds is the time needed to produce 1 part 23.8 seconds X 1000 = 23,800 23,800 seconds / 60 = 396 minutes to produce 1000 units This would leave 24 minutes of idle time.
420 minutes per day available which can produce (25,200/23.8= 1058) 1058 units per day. Finish Grind 2700 seconds/1000 = 2.7 seconds 2.7 seconds + 35 seconds = 37.7 seconds is the time needed to produce 1 part 37.7 seconds X 1000 = 37,700 37,700 seconds / 60 = 628 minutes to produce 1000 units 420 minutes per day available which means that we can only produce (25,200/37.7= 668) 668 units per day.
This is the bottleneck station.