Steinbarts carries a couple of grape and fruit crushers.
The grape crushers have a hopper that will hold about 50 lbs of grapes and has nylon crushing rollers (better than the aluminum ones that are on the market as aluminum is highly reactive to acid). These work well for white wines or soft fruits that you are going to crush straight into a press or fermenter.
The fruit crushers we off have stainless teeth that are made to shred harder fruits like apples and pears. They have a small hopper and are also made to sit atop a press or fermenter.
Note: Neither of these crushers can be used with stone fruits unless the pits are removed first.