Adds four tiers of powered loaders to IR3 games (one steam, three electric, corresponding to yellow, red and blue belts). Loaders connect belts directly to an inventory, rapidly transferring items into or out of chests, machines, and train wagons. Loaders can filter items (output mode only).

Each loader tier also has a corresponding tier of "stacker" - a small device designed to work in conjunction with loaders to compress and decompress belts of ingots. Together, these devices operate much like "Deadlock's Stacking Beltboxes" of yore. Stacking allows you to effectively multiply the throughput of a belt of ingots by four. Stackers work with a restricted set of items (ingots and other brick-like things). To stack ingots, feed a belt of them into a stacker with a loader, and empty the stacked ingots onto another belt with another loader. To unstack them again, simply repeat the process. You can mouse-over an empty input slot in a stacker to get a list of items that can be stacked.

You can disable either the loaders (if you prefer a different loader mod) or the stackers (if you don't want to use them). A basic loader-to-belt snapping option is also included (on by default). For more finicky snapping options, you will need to use another loader mod.