Find auctions for restaurant equipment by looking at general auction directories such as AuctionZip. Another good option is finding local auctions that specialize in restaurant equipment, such as Main Auction Services.
AuctionZip is a useful resource for all types of local auctions. Enter a ZIP code and proximity, and then add keywords, such as "restaurant equipment." There is also the option of entering a category while using the search tool.
Another tip is to contact auction companies in your area. For example, residents of Texas might want to look at upcoming auctions at Main Auction Services, which specializes in commercial supplies, including restaurant equipment.