Question

Operator #	1			2			3			4
Batch Size	6	8	6	8	6	6	7	7	8	6	7	7
Step 1	30.25	40	29.5	40.5	29	31	35.75	36.5	40.25	30	35.25	34.5
Step 2	73	96.5	72	95.5	71.75	71	85	83	96	72.25	83	84
Step 3	66	88.5	67	89	65	66.5	78	77	87.75	65.5	77.25	76.75
Step 4	23.75	32	24.25	31.5	24.5	23.5	28	29	32.5	23	29	28.5
Step 5	96.25	127.75	95.75	128.5	95	96.5	113	111.5	128.75	96.25	112.25	112
Motion*	6.75	9	7	7	6.25	5	7.25	6.5	7.5	5.75	6.75	7.5
Transportation**	1	0.5	0.75	0.75	1.25	0.75	0.5	0.75	1.25	1	0.5	0.5
Waiting	4	16.5	12.5	14.25	10.75	12.75	14.5		17	11.5	17	13
Rework	0	0	0	0	0	0	0	92.25	0	78.75	0	0
Total Time (min)	301	410.75	308.75	407	303.5	307	362	436.5	411	384	361	356.75
what is the throughput time

Answer 1

Throughput Time = Time taken to complete manufacturing / Units of product or batch size

In other words thrughput time of a unit is total time of process time, inspection time, move time and wait time..

Operator #	1	2	3	4	5
Batch Size	6	8	6	8	6
Step 1	30.25	40	29.5	40.5	29
Step 2	73	96.5	72	95.5	71.75
Step 3	66	88.5	67	89	65
Step 4	23.75	32	24.25	31.5	24.5
Step 5	96.25	127.75	95.75	128.5	95
Motion*	6.75	9	7	7	6.25
Transportation**	1	0.5	0.75	0.75	1.25
Waiting	4	16.5	12.5	14.25	10.75
Rework	0	0	0	0	0
Total Time (min)	301	410.75	308.75	407	303.5
Throughput time	50.17	51.34	51.46	50.88	50.58

Note: Transportation time is assumed as it incurred between the manufacturing processes and considerd under wait time.

Motion time is assumed as move time between manufacturing processes..

First five operators not incurred any rework time meaning rework time is normally not part of the throughput time. Any abnormal incurrance of rework time should be considered for caclulation throughput yield.