The 6 mixer version requires 12 lead and sand per second per input belt, but a Titanium Belt only carries 11. Thus, you can't continuously run all 6 - it will only run 5.5 of them.

Here's the 4 mixer version as a string for folks on other platforms.

bXNjaAF4nE1QS07DMBB9/iQpYVGxYcWiF4hURJHaQ3TDDUJjKjeJjRwX1CshDoDE4cLYTltiRTPvzbw3HuMWGYc0da9wv1W+3nf1MCxe1Js2yp0W23aFYvCq7nWD8nGzXj6vNk/LdYE7r31t9LGvdtZ8qJN1yAfrvHKYvzrd7NW1UL7bT+UqYxsF2erOYK6pRM1NNWlmh6PZeW0NgAf6wRA/ETI6GSBZyDhiEEQwxgMsLt0B8iKpJij+V4m+VFmAUfs9jmPHBEGeWHFmDyJAeXWUdBBfLM2R0SmwpOLIEvtF0pZz5GncL8GeFsjjFoxiHiYFImxBVpTJc6cmuzgwo8AREd2MY5bM2XT5mwR/wiyKJfXiDyP/SI0=