LUNMAR ROTOMAG lifting capacity is 1500#.

Minimum Piling Height Standard Mount: 43"
Minimum Piling Height Stubby Mount: 28"
Minimum Piling Diameter: 8"
Maximum Cradle Travel: 9'
Power Requirments: 110 V and  15A  minimum
Minimum Water Depth:  5" under keel of the boat to be lifted