A hand-powered apple grinder/masher and cider press can easily cost you over $700. Build this motorized grinder and press for under $75, with a ceiling fan motor and a few plastic buckets.
This project is not difficult, but is very detailed. The details are in the video, but here is a short summary:
The grinder is made by forming two 6-inch PVC end caps into a drum and studding it with stailless steel screws. This is attached to and driven by a fan motor. The press container is made with 5 buckets, one inside the other, for extra strength, and drilled with 100 holes to let out the cider. A threaded rod is used to press a wooden plunger to squeeze the apples.