Yup! Exactly 75 of each every minute, but that’s only because I have an excess of crafting materials (those ratios are close, but not exact so that each belt fills up completely)

Keep in mind that I’m using level 3 assemblers to hit that 75 number. This is just off the top of my head, but I think it’s 45 with level 1, and it’s 60 with level two