50 k parts?
Who makes 50k parts in advance? Specially nowadays that we use "Jit-FIFO" (Just in time, first in, first out)
Maybe production has 50k screws or 50k zip ties, but never 50k transmissions. It would be extremely stupid.
In our SCAW2GEN production line, for example... we always try to have 14 transmissions ready and we can never exceed 21 units ready because we have exactly 22 slots on the conveyor. 1 is reserved as an error margin.
The inventory for parts (raw material) should never exceed the lot plus 10%. each lot is 200 units, plus 20 The exceeding is saved and every 5 lots we make a lot with the excess.
This makes muhc easier to control the lots and if something goes wrong, it is much easier to track everything (suppliers, retailers, final consumers)
Make one lot with 50k parts ready for final assembly is a complete nonsense and the production engineer that does that will probably be sent to the HR office and ket a foot on his ass for causing a real nightmare in the production.
Then marketing and sales would have to do whatever they can to get rid of ready products, maybe with a huge sale, and production would have to speed at maximum, to get rid of that inventory ASAP.
Full warehouses (both for inventory or final products) equals a huge loss for the manufacturer. We fill warehouses ONLY when we know a new model will be really fantastic.
We had the opposite problem a few months ago when we released the SCAW2GEN. The engineer decided not to apply some of the features I included and made some last minute changes. We decided to be carefull and make only 20 lots. We were not expecting a huge success. Statistically, 20 containers would last around 7 months in our warehouse here in the US. as we have enough space in our warehouse that would be ok for us. To make the story shorter, the first stock ended in 8 days. We made other 20 containers, after nearly 20 days out of stock, it arrived and sold out in 6 hours. Third lot we were smart enough to make only 10 containers. 1 container was immediately delivered because of the backorders, 3 other containers sold in 4 days, and we have 6 containers waiting in our warehouse. Sales stabilized.
And our company is tiny. For a company like speed queen, selling 50k units to get rid of inventory is not a rocket science. How many dealers they have all over the world? divide 50k by the number of dealers.... super easy to sell 50 units for each.