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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 $=27$ seconds

Setup time $=30$ minutes

Uptime $=100\%$

Operators $=1$

WIP $=1,000"$L$",1,350"$S$"($before Pierce & Form$)$

Process Step $3$

Finish Grind

Cycle time $=37$ seconds

Setup time $=45$ minutes

Uptime $=100\%$

Operators $=1$

WIP $=300"$L$",1,550"$S$"($before Finish Grind$)$

Process Step $4$

Shipping

WIP $=550"$L$",1,250"$S$"($after Finish Grind$)$

Supplier

One shipment a day in trays of $60$ pieces

Information

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 pushedtable 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

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.$)$