The cost of a rock crusher can vary widely depending on factors such as its size, capacity, features, and the manufacturer. Generally, smaller, portable rock crushers can range from a few thousand dollars to tens of thousands, while larger, industrial-grade crushers can cost hundreds of thousands of dollars. You might also need to factor in additional costs for installation, transportation, maintenance, and potential add-ons or customizations. For an accurate quote, it's best to contact manufacturers or suppliers directly with your specific requirements.