The cost of a 20-ton-per-hour (20t/h) crusher can vary widely based on several factors, including the type of crusher (e.g., jaw, cone, impact), the brand, the materials it's made from, and any additional features or technologies it includes. Generally, you can expect to pay anywhere from tens of thousands to hundreds of thousands of dollars.
For a more accurate estimate, it would be best to contact manufacturers directly, specify your requirements, and request a quote. Keep in mind that additional costs like installation, transportation, and maintenance should also be considered.