Classen’s Crane Service ALS Challenge with 100 Ton Crane and Scalping Basket. Jul 25, 2017 | 0 comments Classen's Crane Service ALS Challenge with 100 Ton Crane and Scalping Basket.Posted by Classen's Crane Service, LLC on Friday, August 15, 2014 Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.