Question
In a 480 minute shift :- On a machine rated at 100 products output per minute Maximum output = 480 mins x 100 units =
In a 480 minute shift :-
On a machine rated at 100 products output per minute
Maximum output = 480 mins x 100 units = 48000 units
Shift info: Output (Good Production) = 32000 units
Speed = 98 units per minute
Planned downtime = 82 mins
Bottleneck loss due to B/down = 30 mins
Rejects (in process) = 1255 in 8 hr shift
Output (OEE) = 32000 / 48000 = 66.7%
480mins x 66.67% = 320 mins, therefore Total Loss = 160 mins
Six Loss Calculations:
Speed loss
Max theoretical units possible at actual speed = 98 x 480 = 47040
= (32000/47040) (32000/48000) =
68.03% - 66.67% = 1.36%
480 x 1.36% = 6.53 mins / 480 = (1.36%)
Planned downtime = 82 mins / 480 = (17.08%)
Breakdown = 30 mins / 480 = (6.25%)
Rejects = 1255 / 98 (actual running speed) = 12.81 mins / 480 = (2.67%)
Minor stops = 480-320-6.53-82-30-12.81 = 28.66 mins / 480 = (5.97%)
Total loss = 160 mins = (33.33%)
OEE Calculations (Time in mins):
Production time = 480 Time less availability loss = 368Time less performance loss = 333
Availability Loss Performance Loss Quality Loss
Planned downtime =82 Speed loss =6.53Rejects on start up =0
Breakdowns =30Minor stops (
Total =112Total =35.19 Total =12.81
Availability (368/480) = 77% Performance (333/368) = 90% Quality (320/333) = 96%
OEE = 0.77x0.9x0.96 = 66.7%
Transform these information into our OEE Table and prove the "availability", "efficiency(?)", "performance", "Reliability-Throughput Yield", "OEE" measures with open calculation. To prepare an Excell sheet is NOT done. Show your calculations..... What are the major differences, between both approaches (our and the Case above)? Mention at least three of them As a consultant where would start? Why explain
In a 480 minute shift :-
On a machine rated at 100 products output per minute
Maximum output = 480 mins x 100 units = 48000 units
Shift info: Output (Good Production) = 32000 units
Speed = 98 units per minute
Planned downtime = 82 mins
Bottleneck loss due to B/down = 30 mins
Rejects (in process) = 1255 in 8 hr shift
Output (OEE) = 32000 / 48000 = 66.7%
480mins x 66.67% = 320 mins, therefore Total Loss = 160 mins
Six Loss Calculations:
Speed loss
Max theoretical units possible at actual speed = 98 x 480 = 47040
= (32000/47040) (32000/48000) =
68.03% - 66.67% = 1.36%
480 x 1.36% = 6.53 mins / 480 = (1.36%)
Planned downtime = 82 mins / 480 = (17.08%)
Breakdown = 30 mins / 480 = (6.25%)
Rejects = 1255 / 98 (actual running speed) = 12.81 mins / 480 = (2.67%)
Minor stops = 480-320-6.53-82-30-12.81 = 28.66 mins / 480 = (5.97%)
Total loss = 160 mins = (33.33%)
OEE Calculations (Time in mins):
Production time = 480 Time less availability loss = 368Time less performance loss = 333
Availability Loss Performance Loss Quality Loss
Planned downtime =82 Speed loss =6.53Rejects on start up =0
Breakdowns =30Minor stops (
Total =112Total =35.19 Total =12.81
Availability (368/480) = 77% Performance (333/368) = 90% Quality (320/333) = 96%
OEE = 0.77x0.9x0.96 = 66.7%
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