Question

Overall Equipment Effectiveness Exercise for Case Study E Directions: Using your Overall Equipment Effectiveness Calculation Worksheet and th information provided below, determine the Overall Equipment a typical Assembly plant for Availability Assumptions: At a typical plant, the constraint in the Widget production process is the machining line. The following information applies to the line for the week of June 5 through June 11. The line was schedulėd to run two &-bour shifts Monday through Friday, and one 9-hour shift on Saturday. The line was scbeduled to be down on Sunday. Relief operators were used for two 20-minute breaks Monday through Friday on both 8-hour 30-minute unpaid hunch every shift, every day. shifts., The line went down for a During the week, the Production Line had 4 hours and 20 minutes in downtime for breakdowns and 4 hours and 32 minutes in other types of downtime: DURATION OF DOWNTIME OTHERTYPES OR DOWNTIME Part Shortages 125 min. and Setups 30 min. Team Meetings 45 min. eventative Maintenance Performance Efficiency Assumptions: The ideal cycle time of the line is 0.58 minutes per piece. The total mumber of parts run each day was: Monday Tuesday Wednesday ·Thursday .Friday Saturday 1,025 930 1,284 1,008 897 545 5,689

Answer 1

	production time(hr)	production time( in min)	Daily down time(min)	Daily available time(min)
Monday	16	960	70	890
Tuesday	16	960	70	890
Wednesday	16	960	70	890
Thrusday	16	960	70	890
Friday	16	960	70	890
Saturday	9	540	30	510
Sunday	0	0	0	0
Total		5340	380	4960
			Breakdown and other downtime(min)	532
			Run time	4428

Total production= 5689

Ideal cycle time=0.58 min

Availability= Run time/ Production time=4428/5340= 0.83

Performance= ideal cycle time* total production/Run time=5689*0.58/5340= 0.745

Quality= total production* ideal cycle time/Run time= 5689*0.58/4428=0.665

OEE= 0.83*0.745*0.665=0.41