Crissa
Well-known member
- First Name
- Crissa
- Joined
- Jul 8, 2020
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- Santa Cruz
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- 2014 Zero S, 2013 Mazda 3
More castings per truck means more presses per truck, not the same press used twice. Because of downtime to change the molds would be horrendous.Your math is wrong. Remember there are two castings per truck, front and rear clips. So 2 min per casting would be 4 min per truck. Which equates to 15 trucks per hour, 120 trucks per 8 hour shift. 360 for every 3 shifts, 1,800 per week, 90,000 trucks for a 50 week year. So, they are definitely running much faster cycle times.
It may be a total to 2 min between injection molding, unloading and cooling. But while unloading a cooling they’re injection molding the next one. Thats what Munro was saying.
Remember any numbers could be missing downtime for swapping out the molds, or even recycles time for the coolant injectors and vacuum charges. Over a year, the gigapresses were spitting out a Model Y rear casting every two minutes - but they stop to change the molds once in awhile, then have to do some verification runs, and the older machines were using a different coolant system so...
-Crissa
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