When used in conjunction with components from 08780000, or 08797500, these kits allow application of up to 12 tons of hydraulic force which can be used to provide a controlled force in place of the manual or mechanical effort required when using 08780000 / 08797500 Contents:- Hollow Ram Hydraulic Cylinder, Alignment washer and 2x extra-long heavy-duty spindles that are rated for use with the hydraulic ram. (Note: Standard 08780000 spindles are not rated for use with the 18782500 and / or 18792500 hydraulic ram) Cylinder: 40mm stroke