I freeze the apples. Then, as they thaw I mash them up in big mesh bags with my hands. For harder apples, we use a potato masher. Then I ferment for a few days, and then lift out the bags and hand squeeze.
It's a redneck crusher and press, but it works for us. We only do about 125 pounds of apples or crabapples that way, as it is pretty tedious. It seems to be fairly efficient, though!