Little Mac Used Stationary Car Crusher 2 New Head Plates & Guides Engine Rebuilt 2005 Extra Spare Power Plant A car crusher is a piece of machinery used to compress the metal remains of a junked car after it has been stripped of all useful parts. Compressing them takes up less space when stored, or when transported via truck or train to a recycling facility. A crusher is just one step of the auto-recycling process. They can also be used to compact other forms of metal waste, such as old appliances or even large machines like combines. ­Older machines tend to be stationary -- once they're set up in a scrap yard, they stay there. They are built mounted to a standard-size truck trailer, and can be towed to various locations, set up, used to crush some things, then moved somewhere else. This helps cut costs for auto salvage yards - instead of buying an expensive machine, they can split the cost with other yards or rent time on a crusher that comes by once a week. Specifications depending on manufactures (may vary)