Customer demands for widgets average 1500 units per day. The company works one shift, five days per week from 7:00am to 3:30pm with an unpaid lunch break from 11:30am to 12:00pm. A paid break is allowed from 9:00am to 9:15am and another paid break from 1:15pm to 1:30pm. An average of one-fifth of the manufactured parts have to be scrapped each day because the employees are relatively new. The actual time to manufacture a widget is 23 minutes. The machines will not be available for this operation for 30 minutes per day due to cleaning and maintenance issues. A co-op student performed a time study and estimated that standard time for this operation at 20 minutes. Determine the required number of machines. Hint: Use the given information to determine % defective/scrap, performance of the operation, and the uptime %.
0 comments