This is a quality-of-life improvement for the “Bin” storage block in the Mekanism Mod, which allows you to store large quantities of a single item.
Regardless of its contents, the Bin has a stack limit of 1 in the inventory, which takes up a significant amount of space, even over short distances.
That’s why the Mekanism Bin Installer was developed.
This mod eliminates the need to go through the tedious process of collecting Bins and upgrading them via crafting; you can simply shift+right-click on a block of the previous tier to upgrade the Bin.
Of course, various BlockState values—such as contents, orientation, and the Bin’s status— are fully preserved!
