Question

How many kanbans should circulate between two workstations if demand is 500 units per hour, lead time is 20 minutes, container sizes are 35, and the company uses a safety factor of 5%? 1.04 2.0 2.5 3.0 12 4. O 8 5.0 11 6.0 6

Answer 1

Answer: We can use the basic kanban formula to calculate the number of kanbans needed:

Kanban = (Demand during lead time + Safety stock) / Container size

The demand during lead time is the demand in 20 minutes, which is:

500 units/hour * 1 hour/60 minutes * 20 minutes = 166.67 units

The safety stock is 5% of the demand during lead time, which is:

0.05 * 166.67 units = 8.33 units

Adding the demand during lead time and safety stock, we get:

166.67 units + 8.33 units = 175 units

Dividing by the container size, we get:

175 units / 35 units/container = 5 kanbans

Therefore, the number of kanbans that should circulate between the two workstations is 5. Answer: 2.5.

Answer 2

The first step is to determine the demand during the lead time:

Demand during lead time = (500 units/hour) x (20 minutes / 60 minutes/hour) = 167 units

Next, we need to calculate the number of containers required to satisfy the demand during the lead time:

Containers required = (Demand during lead time) / (Container size) = 167 / 35 = 4.77

We can round this up to 5 to ensure that we have enough containers to handle the demand during the lead time.

Finally, we need to add the safety factor:

Number of kanbans = (Containers required) x (1 + Safety factor) = 5 x 1.05 = 5.25

We can round this up to 6 to ensure that we have enough kanbans to handle the demand with some extra cushion. Therefore, the answer is 6.