There are several profiles that McElroy Metal offers that require mechanical seaming. These profiles include 138T, 238T, Maxima, Maxima ADV and MasterLok-FS. Mechanical seamers and hand crimpers are available for rent through Developmental Industries (DI) at mcelroyseamers.com, a website created just for McElroy customers.  The rental fees for each type of equipment can be found on this site as well as additional information you may need to be aware of within the terms and conditions. DI is the only approved supplier for this type of equipment.