Overall Process Attributes

Average demand: 2,700/week (1,400 "L"; 1,300 "S") Batch size: 1,000 Number of shifts per day: 1 Availability: 8 hours per shift with two 30 minute lunch breaks

Process Step 1 Press Cycle time = 5 seconds Setup time = 2 hours Uptime = 90% Operators = 1 Every Part Every = 1 week WIP = 1 day of sheets (before Press)

Process Step 2 Pierce & Form Cycle time = 30 seconds Setup time = 30 minutes Uptime = 100% Operators = 1 WIP = 1,100 "L", 1,250 "S" (before Pierce & Form)

Process Step 3 Finish Grind Cycle time = 45 seconds Setup time = 45 minutes Uptime = 100% Operators = 1 WIP = 200 "L", 1,450 "S" (before Finish Grind) Process Step 4 Shipping WIP = 400 "L", 1,100 "S" (after Finish Grind) Supplier Information

One shipment a day in trays of 60 pieces Information Flow All communications from customer are electronic:

180/90/60/30/day Forecasts Daily Order All communications to supplier are electronic 4-week Forecast Weekly Fax There is a weekly schedule manually delivered to Press, Pierce & Form, and Finish Grind and a Daily Ship Schedule manually delivered to Shipping All material is pushed

The table below provides the parameters for a new current state value stream map for the family of retainers at the Jensen Bearings Inc. firm described in the chapter. This table depicts the value stream after Kline Steel agrees to accept daily orders for steel sheets and also agrees to deliver on a daily basis. Calculate each component of the new value stream's reduced lead time. Jensen Bearings operates 5 days per week. Click the icon to view the data from the new current state value stream map at Jensen Bearings Inc. a. How many days of raw material does the Bearing's plant now hold? The plant holds 1 days of raw material. (Enter your response rounded to one decimal place.) b. How many days of work in process inventory is held between Press and Pierce? \& Form? The inventory is held days. ?(Enter your response rounded to one decimal? place.) c. How many days of work in process inventory is held between Pierce? \& Form and Finish? Grind? The inventory is held days. ? (Enter your response rounded to one decimal? place.) d. How many days of work in process inventory is held between Finish Grind and? Shipping? The inventory is held days. ?(Enter your response rounded to one decimal? place.) e. What is the new value? stream's production lead? time? The production lead time is days. ?(Enter your response rounded to one decimal? place.) f. What is the new value? stream's processing? time? The processing time is seconds. ?(Enter your response as a whole? number.)